In electronic hardware design, dependable interconnection between circuit boards and internal wire harnesses is critical to overall equipment performance. Selecting a qualified wire-to-board header greatly improves power delivery and signal integrity for end-products. Introducing the Kinghelm KH-2501GW-10A-Z, a through-hole header of XH series, engineered for broad-range consumer electronics, LED modules and compact industrial equipment applications. Kinghelm KH-2501GW-10A-Z Product Image Outstanding Specifications for Peak Performance The Kinghelm KH-2501GW-10A-Z header is built with proven parameters to guarantee steady operation: - Product Series: XH Series - Pitch: 2.5 mm - Position: 10-position single-row - Mounting Type: Through-hole vertical - Voltage Rating: 250V - Current Rating: Up to 3 Amps - Contact Material: Brass with tin-plated finish - Housing Material: PA66 engineering plastic - Flammability Rating: UL94V-0 - Operating Temperature: -25℃ ~ +85℃ Advantages That Set Kinghelm Apart The KH-2501GW-10A-Z wire-to-board header delivers multiple core advantages suitable for diverse working conditions: Reliable Mechanical Strength Through-hole pins penetrate PCB substrates and form solid soldered joints, effectively lowering risks of loose pins or cold solder joints under vibration. Secure latching with matching XH-series cable housings prevents accidental disconnection during device operation. Stable Electrical Performance Tin-plated brass contacts maintain low contact resistance for consistent power and signal transmission. The PA66 flame-retardant housing enhances internal equipment safety, while wide-range temperature tolerance ensures stable output amid temperature fluctuations. Great Process Compatibility Fully compatible with conventional wave-soldering workflows. No special modification to existing production lines is required, helping manufacturers control assembly costs and boost throughput for both prototype and mass-production orders. Broad Compatibility & Sourcing Convenience Based on the well-established XH 2.5 mm standard, this header enjoys abundant supporting accessories on the market. Matching cable housings and wiring components are easy to source, shortening product development cycles for hardware engineers. Durability for Long-Term Service Optimized contact spring structure preserves steady contact performance after repeated mating cycles. It resists common stresses including minor vibration and ambient temperature change for extended service life. Cost-Effectiveness Without sacrificing reliability, Kinghelm offers this mature-design component at competitive cost, making it ideal for cost-sensitive consumer and industrial projects. Kinghelm KH-2501GW-10A-Z Specification Diverse Applications for Every Environment The KH-2501GW-10A-Z wire-to-board header fits numerous practical scenarios: - Consumer Electronics: Establish harness interconnection between mainboards and different functional modules for power and signal transfer. - LED Lighting & Sensor Modules: Serve as board-end wiring components for module internal connection. - Compact Industrial Control Equipment: Realize wire-to-board harness lead-out and safeguard stable system operation. - Portable Electronic Devices: Handle internal power-signal interconnection inside space-constrained hardware assemblies. Conclusion: Choose Kinghelm for Reliable Interconnection When stable board-to-wire connection is required for your hardware project, the Kinghelm KH-2501GW-10A-Z wire-to-board header stands out as a trusted option. Featuring robust through-hole construction, compliant electrical ratings, full accessory compatibility and proven real-world performance, this XH-series header meets the demands of consumer-grade as well as light-industrial hardware development. Boost your equipment connection performance with Kinghelm — where proven design meets cost-effective reliability! Invest in interconnect components you can count on throughout your product lifecycle. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-10A-ZView Product Details

In electronic product design, push-button switches are among the most basic yet critical human-machine interface components. A push-button switch with stable performance and a well-designed structure can have a direct impact on the overall user experience and reliability of an electronic device. Today, we would like to introduce the KH-PB-22E60, a compact six-pin latching push-button switch from Kinghelm. Kinghelm KH-PB-22E60 Product Image 1. Product Overview The KH-PB-22E60 is a six-pin latching push-button switch measuring 5.8 × 5.8 × 13.5H mm. It features a through-hole mounting design with PC terminals and is supplied in a bag package. Each switch weighs only 0.495 g. As a non-illuminated push-button switch, it focuses on its core function of controlling circuit connection and disconnection. Product Category: Push-Button Switch Circuit Configuration: Double Pole Double Throw (DPDT) Button Shape: Rectangular Plunger Mounting Method: Through-Hole Illumination: Non-Illuminated Terminal Type: PC Terminals The KH-PB-22E60 belongs to Kinghelm's KH-PB-22E series. Other models in the same series include the KH-PB-22E65 (5.8 × 5.8 × 10.7H mm), KH-PB-22E70-WS, and KH-PB-22E75-WS. With different heights and specifications ranging from 10.7 mm to 17 mm, the series provides engineers with flexible options for different internal space requirements. 2. Brand Strength: Quality Assurance from Kinghelm The KH-PB-22E60 is manufactured by Shenzhen Kinghelm Electronics Co., Ltd. Kinghelm is a National High-Tech Enterprise with multiple invention patents and software copyrights related to BeiDou navigation. The company is also a member of the China Satellite Navigation Association, China Information Industry Trade Association, and Guangdong Connector Association. Under the "Kinghelm" brand, the company's products cover three major categories, including BeiDou/GPS antennas, RF components, miniature adapters, broadband data connectors, connectors and terminals, as well as automotive wiring harnesses, industrial connectors, and specialized customized components. Kinghelm products are widely used in high-speed railways, new energy vehicles, personal transportation devices, wireless smart terminals, the Internet of Things (IoT), smart cities, industrial equipment, medical applications, commercial aerospace, and other fields. 3. Core Technology: DPDT Configuration and Latching Mechanism One of the most important features of the KH-PB-22E60 is the combination of its Double Pole Double Throw (DPDT) circuit configuration and latching mechanism. 1. What Is DPDT? A six-pin latching switch is essentially a Double Pole Double Throw (DPDT) switch. The KH-PB-22E60 has two rows of three pins each. The center pin in each row serves as the common terminal (COM), while the two outer pins correspond to the normally open (NO) and normally closed (NC) contacts, respectively. The two rows form two completely independent Single Pole Double Throw (SPDT) switch circuits. The key advantage of a DPDT configuration is its ability to control two independent circuits simultaneously. Unlike a conventional Single Pole Single Throw (SPST) switch, which simply controls the on/off state of one circuit, a DPDT switch can switch two circuits between different connection states at the same time. This makes the KH-PB-22E60 particularly useful for applications such as direction switching, forward/reverse motor control, and redundant power switching. 2. How the Latching Mechanism Works "Latching" means that after the switch is pressed, its internal mechanical structure keeps it in the selected position even after the button is released. Pressing the button again releases the latch and changes the switch to the other state. This Push-On/Push-Off operating mechanism—press once to lock and press again to unlock—is particularly suitable for applications such as main power switches and operating-mode selection switches. 4. Wide Range of Applications With the combined advantages of a DPDT configuration and a latching mechanism, the KH-PB-22E60 can be used in a wide range of applications, including: Main Power Switches: It can be used as a main power switch for electronic equipment and combined with a DC power jack to provide convenient one-touch power control. Motor Forward/Reverse Control: The DPDT configuration is naturally suited to polarity-reversal and forward/reverse control of motors. Lighting Control and Mode Selection: It can be used in lighting control circuits or for switching between different operating modes. Industrial Controls and Test & Measurement Equipment: Applications include manual mode selection for small PLC modules, status resetting for sensor nodes, range-lock functions on multimeters, and trigger-mode selection on oscilloscopes. Smart Home and Consumer Electronics: It can be used for locking operating levels on humidifiers, switching brightness modes on small lamps, and similar applications. Automotive Electronics and DIY Projects: Its six-pin DPDT configuration is suitable for applications requiring independent control of positive and negative lines, indicator-light circuits, or dual-channel signal isolation. Examples include centralized power control for automotive equipment, DIY power boxes, and main control panels for 3D printers. 5. Design and Selection Considerations For hardware engineers selecting the KH-PB-22E60 for PCB designs, the following factors should be considered: Pin Identification:The center pin in each row is the common terminal (COM), while the two outer pins serve as the normally open (NO) and normally closed (NC) contacts. The two rows are completely independent switch circuits and are not electrically connected unless they are connected together on the PCB. Mounting Method:The KH-PB-22E60 uses through-hole mounting and PC terminals, making it suitable for through-hole PCB soldering. Compared with surface-mount components, through-hole switches offer secure mechanical mounting and a straightforward structure. They are particularly suitable for prototype development, hand soldering, small-batch production, and conventional through-hole assembly processes. Electrical Performance:As a low-voltage, low-current control switch, the KH-PB-22E60 can typically support rated voltages ranging from DC 12 V to 50 V and contact currents of up to 500 mA among products in the same series. This makes it suitable for most low-voltage control circuits. Kinghelm KH-PB-22E60 Datasheet 6. Conclusion With its compact 5.8 × 5.8 mm footprint, DPDT configuration, reliable latching mechanism, and through-hole PC terminals, the Kinghelm KH-PB-22E60 six-pin latching push-button switch provides precise control of two independent circuits within a limited space. Whether used for mode selection in industrial equipment, level selection in household appliances, or creative implementations in DIY projects, this compact push-button switch can provide a stable and reliable control solution. As a National High-Tech Enterprise, Kinghelm also provides strong technical capabilities and product quality assurance for the performance of the KH-PB-22E60. For electronic design projects requiring a compact DPDT latching push-button switch, the KH-PB-22E60 is certainly an option worth considering. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-PB-22E60View Product Details

I. Product Overview The KH-6X6X8H-STM is a 6 × 6 mm vertical-mount tactile switch introduced by Kinghelm. It is specifically designed for low-voltage DC (12V) and low-current (50mA) control applications. As consumer electronics and smart home devices continue to become more compact and intelligent, human-machine interface buttons must not only occupy minimal space but also deliver reliable electrical performance, a comfortable tactile feel, and long-term durability. The KH-6X6X8H-STM was developed to meet these requirements. With three key advantages—compact size, easy installation, and comfortable operation—it is an ideal button solution for devices such as TV remote controls, smart control panels, thermostats, and portable instruments. Kinghelm, a national high-tech enterprise founded in 2007, holds Beidou-related invention patents and multiple software copyrights. The company is a member of the China Satellite Navigation Association, the China Information Industry Association, and the Guangdong Connector Association. Its product portfolio extends from Beidou/GPS antennas and RF connectors to precision connectors, USB Type-C products, HDMI products, pin headers, and female headers. Tactile switches represent an important part of Kinghelm's expansion into the human-machine interface sector. Supported by stringent quality control and advanced manufacturing processes, Kinghelm switches have been widely used in consumer electronics, smart homes, automotive electronics, and industrial control applications. Kinghelm KH-6X6X8H-STM Product Image II. Key Specifications and Performance Advantages The technical specifications of the KH-6X6X8H-STM can be divided into four categories: electrical performance, mechanical performance, structural dimensions, and packaging and logistics. Each category directly translates technical parameters into practical application value. 2.1 Electrical Performance Parameters — Designed for Low-Voltage, Low-Current Applications Circuit configuration: Single-pole, single-throw (SPST), normally open; closed when pressed and open when released. Rated voltage: 12V DC. Contact current: 50mA. Insulation resistance: ≥100MΩ (tested at 500V DC). Contact resistance: ≤50mΩ (initial value). Dielectric strength: 250V AC for 1 minute, with no breakdown or flashover. Advantages for low-voltage and low-current applications: The 12V/50mA rating is well suited to the control circuits used in most consumer electronics and smart home devices, including MCU GPIO button scanning, power-enable signals, and mode switching. It avoids the unnecessary safety risks associated with high-voltage, high-current designs while still being suitable for LED indicator control and small relays. An insulation resistance of 100MΩ helps prevent leakage between adjacent circuits, while the low 50mΩ contact resistance supports reliable transmission of low-level control signals. The dielectric strength test also provides an additional safety margin during power fluctuations, contributing to reliable long-term operation. 2.2 Mechanical Performance Parameters — Tactile Experience and Durability Operating force: 2.5N (approximately 250gf). Travel: 0.3mm ± 0.1mm. Mechanical life: ≥80,000 cycles. Return time: ≤5ms. Advantages in tactile feel and service life: The 2.5N operating force provides clear tactile feedback and helps reduce accidental activation when a device is placed in a pocket or bag, while remaining comfortable for children and elderly users. The 0.3mm short travel produces a crisp tactile response, allowing users to clearly confirm each press. A mechanical life of 80,000 cycles means that even with more than 100 presses per day, the switch can provide stable service for more than two years, making it particularly suitable for frequently used devices such as household appliance remote controls and smart panels. The ≤5ms return time also supports rapid repeated operation without missed responses. 2.3 Dimensions and Structural Parameters — Installation Compatibility Overall dimensions: 6mm × 6mm × 8mm (excluding leads). Actuator shape: Round with a flat surface. Actuator color: Black (standard version). Terminal style: Gull-wing, with four symmetrical terminals. Mounting method: Vertical surface mount. Bracket/illumination: No bracket and no illumination. Operating temperature: -25°C to +85°C. Structural and manufacturing advantages: The 6 × 6 mm footprint offers an excellent balance between PCB space efficiency and a sufficiently large pressing area for users. Gull-wing terminals are well suited to SMT manufacturing: their exposed solder joints facilitate automated optical inspection (AOI), while their elasticity helps accommodate thermal expansion and contraction stresses. They are also convenient for manual soldering. The vertical surface-mount design is compatible with high-speed pick-and-place machines, helping reduce labor costs. The wide operating temperature range of -25°C to +85°C enables reliable operation in both cold northern winters and hot southern summers, making the switch suitable for smart home applications such as outdoor sensor panels and simple automotive control devices. The simplified design without a bracket or illumination helps reduce cost and potential failure points, making it suitable for applications that prioritize reliability. 2.4 Packaging and Logistics Parameters — Supply Chain Efficiency Packaging: Tape and reel, 700 pieces per reel. Minimum order quantity: 20 pieces (samples supported). Gross weight per unit: 0.634g. Storage conditions: 10°C to 30°C, humidity ≤70% RH. Supply chain advantages: Tape-and-reel packaging integrates seamlessly with automated SMT feeders, reducing material-change downtime and improving production efficiency. With a weight of only 0.634g per unit, the switch can also help reduce logistics costs. Flexible minimum order quantities support both R&D prototyping and volume production, providing customers with greater supply chain flexibility. III. Design Highlights and Engineering Value Ergonomics of the round actuator: The round structure allows relatively even force distribution from different pressing angles. Combined with the 2.5N operating force, it provides clear tactile feedback even when users are wearing gloves, such as in kitchens or workshops. Vibration resistance of gull-wing terminals: The curved terminal structure provides elastic compliance that can help absorb mechanical stress in vibration environments and reduce the risk of solder-joint cracking. This is particularly beneficial for portable consumer electronics such as handheld vacuum cleaners and Bluetooth speakers. Optimized contact materials: The internal contacts use oxidation-resistant alloy materials to help resist sulfuration and oxidation, maintaining stable contact resistance during long-term use and extending the practical service life of the switch. IV. Typical Applications: Consumer Electronics and Smart Homes The KH-6X6X8H-STM is designed primarily for consumer electronics and smart home applications, including: Consumer electronics: Function and menu buttons for televisions and audio equipment, channel-selection buttons for set-top boxes, auxiliary buttons for computer peripherals such as mice and keyboards, and operation buttons for portable medical instruments such as blood pressure monitors and thermometers. Its low-voltage, low-current characteristics are naturally compatible with battery-powered devices and can help minimize standby power consumption. Smart homes: Smart switch panels, thermostat adjustment buttons, curtain controllers, password input buttons for smart door locks, and reset buttons on robotic vacuum cleaners. Its comfortable tactile feel and long service life meet the demands of frequent household use, while the -25°C to +85°C operating temperature range supports reliable operation in environments with significant temperature variation, such as balconies and garages. Other applications: Handheld industrial control terminals, non-safety-related automotive infotainment buttons, and similar applications. V. Quality Assurance and Overall Cost Performance Kinghelm implements comprehensive quality control for the KH-6X6X8H-STM, covering incoming material inspection, SPC process monitoring, and finished-product sampling inspection to help ensure batch-to-batch consistency. Compared with similar imported products, this model offers competitive pricing and shorter lead times while maintaining comparable performance. Kinghelm's professional technical team can also provide FAE support, including soldering process recommendations and PCB layout guidance, helping customers accelerate product development and implementation. Kinghelm KH-6X6X8H-STM Datasheet VI. Conclusion The KH-6X6X8H-STM tactile switch is specifically designed for low-voltage, low-current applications rated at 12V/50mA. Its electrical characteristics are well matched to the control requirements of consumer electronics and smart home devices. With a comfortable 2.5N operating force, a mechanical life of 80,000 cycles, SMT-friendly gull-wing terminals, and a wide operating temperature range, it transforms technical specifications into tangible improvements in user experience and manufacturing efficiency. Whether you are developing a new generation of smart speakers or designing the next generation of smart control panels, the KH-6X6X8H-STM is a reliable and cost-effective option for tactile switch selection. Kinghelm remains committed to balancing innovation and quality while providing reliable human-machine interface components for the global electronics industry. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-6X6X8H-STMView Product Details

Within slim and compact electronic devices, FFC/FPC connectors act as critical components for signal interconnection between flexible flat cables and circuit boards. Connection stability directly determines the overall operating performance of end-products. Today we introduce the KH-FG1.0-H2.0-30PIN FFC/FPC connector developed by Kinghelm. Featuring flip-lock latching mechanism, low-profile compact form and high-density pin layout, it is widely adopted in a wide range of portable digital devices. Kinghelm KH-FG1.0-H2.0-30PIN Product Image Outstanding Specifications for Peak Performance - Product Series: FG Series - Product Type: Flip-lock FFC/FPC Connector - Pitch: 1.0 mm - Position: 30 PIN - Board Height: 2.0 mm - Mounting Type: SMD horizontal - Contact Type: Bottom contact - Compatible FFC Cable Thickness: 0.3 mm - Voltage Rating: 50 V - Contact Resistance: ≤30 mΩ - Insulation Resistance: ≥500 MΩ - Operating Temperature: -25℃ ~ +85℃ The Kinghelm KH-FG1.0-H2.0-30PIN is a bottom-contact FFC/FPC connector with flip-lock structure. It adopts SMD horizontal mounting and supports tape-and-reel automatic SMT assembly. Its low 2.0 mm board height makes it well-suited for slim electronic products with limited internal space. Advantages That Set Kinghelm Apart Mechanically, the KH-FG1.0-H2.0-30PIN features a compact and refined outline. The flip-lock mechanism is simple to operate. After inserting the 0.3 mm flexible flat cable and closing the flip lid, the cable is securely locked in place, effectively preventing cable loosening and signal dropout caused by equipment vibration. SMD solder terminals are neatly arranged for reliable soldering and reduce circuit failures induced by cold solder joints. As a high-quality FFC/FPC connector, KH-FG1.0-H2.0-30PIN delivers excellent overall performance. Its high-density 30-pin contacts ensure stable multi-channel signal transmission, achieving dependable interconnection for consumer digital products, display modules and IoT portable devices. In addition, it offers good environmental adaptability and maintains consistent conductive performance under temperature fluctuation and minor-vibration working conditions. Kinghelm KH-FG1.0-H2.0-30PIN Specification Diverse Applications for Every Environment The KH-FG1.0-H2.0-30PIN FFC/FPC connector covers multiple practical scenarios: - Consumer Digital Products: Realize flexible cable interconnection between display modules and mainboards for multi-channel signal transmission. - Display Modules: Serve as board-side connection components to guarantee normal output of image signals. - Portable IoT Electronic Devices: Complete interconnection between circuit boards and flexible cables to ensure stable performance of complete devices. Conclusion: Choose Kinghelm for Reliable Interconnection In summary, Kinghelm KH-FG1.0-H2.0-30PIN FFC/FPC connector stands out as a preferred interconnect solution for slim digital hardware, thanks to its 1.0 mm high-density pitch, flip-lock latching structure and low-profile horizontal SMD design. For manufacturers of consumer electronics, display modules and IoT equipment, selecting KH-FG1.0-H2.0-30PIN means adopting proven and reliable flexible-cable interconnection solutions. As electronic hardware continues to evolve toward slimmer profiles and higher integration, the KH-FG1.0-H2.0-30PIN connector will deliver greater value across more application fields. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-FG1.0-H2.0-30PINView Product Details

In various slim-profile electronic devices, FFC/FPC connectors serve as core components for interconnection between flexible flat cables and circuit boards. Stable signal transmission directly determines the overall functional performance of complete equipment. Today we are introducing the KH-CL1.0-H2.5-28PIN FFC/FPC connector developed by Kinghelm. Featuring compact and slim construction, high-density pin design and stable electrical performance, it has been widely deployed in a broad range of compact digital devices. Kinghelm KH-CL1.0-H2.5-28PIN Product Image Outstanding Specifications for Peak Performance - Product Series: CL1.0 Series - Product Type: FFC/FPC drawer-type connector - Pitch: 1.0 mm - Position: 28 PIN - Board Height: 2.5 mm - Mounting Type: SMD horizontal - Contact Type: Bottom contact - Compatible Cable Thickness: 0.3 mm - Voltage Rating: 50V - Current Rating: 1A/PIN - Contact Resistance: ≤30 mΩ - Insulation Resistance: ≥500 MΩ - Operating Temperature: -25℃ ~ +85℃ Kinghelm KH-CL1.0-H2.5-28PIN is a drawer-latch FFC/FPC connector. It adopts SMD horizontal mounting and supports tape-and-reel automated pick-and-place production, meeting high-density cable interconnection requirements inside slim devices. The compact 2.5 mm board height well accommodates space-constrained internal structures. Advantages That Set Kinghelm Apart In terms of mechanical appearance, the KH-CL1.0-H2.5-28PIN features a compact and refined outline. The drawer-latch structure is easy to operate — after inserting the 0.3 mm flexible flat cable and locking the slider, the cable is firmly secured, effectively preventing cable disconnection and signal dropout under vibration. SMD terminals are neatly arranged for reliable soldering and lower risks of circuit malfunctions caused by cold solder joints. As a premium-grade FFC/FPC connector, Kinghelm KH-CL1.0-H2.5-28PIN delivers remarkable comprehensive performance. Precision contacts ensure stable multi-channel signal transmission, achieving dependable interconnection for consumer digital products, display modules as well as portable smart devices. Meanwhile, the component boasts favorable environmental adaptability and maintains consistent signal conduction under temperature fluctuation and minor-vibration working conditions. Kinghelm KH-CL1.0-H2.5-28PIN Specification Diverse Applications for Every Environment The KH-CL1.0-H2.5-28PIN FFC/FPC connector suits multiple application scenarios: - Consumer Digital Products: Realize flexible flat-cable interconnection between display modules and mainboards for multi-channel signal transmission. - Display Modules: Serve as board-end cable connection components to guarantee normal video signal output. - Portable Smart Electronic Devices: Complete board-to-flexible-cable interconnection and safeguard stable performance of whole devices. Conclusion: Choose Kinghelm for Reliable Interconnection All in all, Kinghelm KH-CL1.0-H2.5-28PIN FFC/FPC connector stands out as a preferred interconnect component thanks to its 1.0 mm high-density pitch, drawer-latch structure and slim horizontal mounting design. For manufacturers of consumer digital products, display modules and portable smart devices, selecting KH-CL1.0-H2.5-28PIN means adopting proven dependable flexible-cable interconnection solutions. As electronic hardware keeps iterating toward slim and highly integrated orientation, the KH-CL1.0-H2.5-28PIN connector will keep exerting greater functions and value in more fields. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-CL1.0-H2.5-28pinView Product Details

Kinghelm KH-6X6X9H-SMT-FS-D is a tactile switch in an SMD-4P package. It measures 6 mm × 6 mm with a height of 9 mm, offers an IP67 protection rating, and has an operating life of 100,000 cycles. It is suitable for a wide range of applications, including consumer electronics, smart home devices, industrial control, and instrumentation. Product Specifications Product Category: Tactile Switch Circuit Structure: Single Pole Single Throw (SPST) Button Shape: Round Mounting Method: Vertical surface mounting Switch Dimensions: 6 mm × 6 mm × 9 mm Bracket: No bracket Contact Current: 50 mA Rated Voltage: 12 V Illumination: None Protection Rating: IP67 Lead Style: Gull-wing Operating Life: 100,000 cycles Kinghelm KH-6X6X9H-SMT-FS-D Product Image Product Features The KH-6X6X9H-SMT-FS-D features a compact 6 mm × 6 mm design with an overall height of 9 mm, making it suitable for electronic devices with limited space. Compared with traditional, larger switches, its compact structure can effectively reduce PCB space requirements and provide greater flexibility for the layout of other components. The product uses an SMD-4P surface-mount design, which is well suited to modern automated SMT manufacturing processes and helps improve production efficiency and soldering consistency. In terms of circuit configuration, the product adopts a single-pole single-throw (SPST) design. When the user presses the button, the internal contacts close and generate the corresponding control signal. When the button is released, the switch returns to its original state. This momentary switching mechanism is simple and reliable, making it suitable for applications such as power control, function confirmation, menu selection, mode switching, and system reset. The product has a rated voltage of 12 V and a contact current of 50 mA, making it primarily suitable for low-voltage, low-current signal control circuits. In practical applications, tactile switches are commonly used as input components for microcontrollers, control ICs, or logic circuits. When the user presses the button, the system detects the corresponding logic-level change and executes subsequent functions according to the programmed control logic, providing excellent versatility. Protection Performance and Operating Life The KH-6X6X9H-SMT-FS-D features an IP67 protection rating, which is one of its key characteristics. For electronic equipment, the ingress of dust, moisture, and liquids may affect the normal operation of internal switch contacts. A high level of protection can improve product reliability in demanding environments, making the switch suitable for industrial control equipment, outdoor electronic products, and applications exposed to dust or moisture. It should be noted that the IP67 rating applies to the switch itself and does not necessarily mean that the entire device or system will achieve the same protection level. The actual protection performance of the complete product must also be evaluated based on PCB design, enclosure construction, and the overall sealing structure. In terms of reliability, the product has an operating life of 100,000 cycles. For devices requiring frequent button operation, a long service life can improve long-term system stability and reduce maintenance and replacement costs caused by switch failure. Therefore, the product can be considered for both consumer electronics and industrial equipment requiring a certain level of operational frequency. Structure and Mounting Features The KH-6X6X9H-SMT-FS-D uses a vertical mounting configuration with gull-wing leads. The gull-wing lead design is well suited to automated placement and reflow soldering processes, allowing convenient connection to PCB pads while also facilitating solder-joint inspection. The product features a round button design, providing intuitive operation. Its 9 mm height is suitable for products requiring a higher button operating position, such as devices with thick enclosures, deep panel openings, or applications where the switch needs to extend from the PCB toward the external operating surface. Designers can combine the switch with keycaps, silicone buttons, or other external structures according to specific product requirements. The product does not include a bracket, resulting in a relatively simple overall structure. It also has no integrated LED and is mainly intended for basic button control and signal triggering. If status indication is required, it can be implemented through an external LED, display, or other electronic circuitry. Application Areas With its compact size, IP67 protection rating, and operating life of 100,000 cycles, the KH-6X6X9H-SMT-FS-D can be used in a variety of electronic products, including smart home devices, consumer electronics, industrial control equipment, instrumentation, communication equipment, security devices, and portable electronic products. For control systems requiring reliable button input, the product can serve as an important human-machine interface component. For example, in equipment control panels, users can send operating commands to the main control system by pressing the tactile switch. In industrial control equipment, the switch can be used for function selection, parameter confirmation, and device reset. In compact consumer electronic products, its 6 mm × 6 mm footprint helps save valuable internal space. Kinghelm KH-6X6X9H-SMT-FS-D Datasheet Conclusion Overall, the Kinghelm KH-6X6X9H-SMT-FS-D is a tactile switch that combines compact size, reliability, and environmental adaptability. It features a 6 mm × 6 mm compact footprint, an SMD-4P surface-mount structure, and a vertical mounting configuration, while offering a 12 V rated voltage, 50 mA contact current, IP67 protection rating, and 100,000-cycle operating life. For electronic equipment requiring reliable button control, low-voltage signal input, and strong environmental adaptability, this product offers solid application value. During the component selection process, engineers can evaluate the switch in combination with available PCB space, circuit parameters, overall product structure, and the actual operating environment to fully utilize its performance advantages and provide stable and reliable human-machine interaction and control functions for electronic devices. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-6X6X9H-SMT-FS-DView Product Details

Within electronic devices, connectors act as critical components for interconnection between circuit boards and wire harnesses. Reliable connection performance directly determines stable operation of complete equipment. Today we are introducing the KH-2501GW-08A-Z wire-to-board connector developed by Kinghelm. Featuring robust through-hole structure, excellent electrical performance and dependable flame-retardant capability, it has gained extensive adoption in a wide variety of electronic products. Kinghelm KH-2501GW-08A-Z Product Image Outstanding Specifications for Peak Performance - Product Series: XH Series - Pitch: 2.5 mm - Position: 8-position single-row - Mounting Type: Through-hole vertical - Voltage Rating: 250V - Current Rating: Up to 3 Amps - Contact Material: Brass with tin-plated finish - Housing Material: PA66 engineering plastic - Flammability Rating: UL94V-0 - Operating Temperature: -25℃ ~ +85℃ Kinghelm KH-2501GW-08A-Z belongs to XH series. Through-hole vertical mounting enables simple soldering and fits conventional through-hole plug-in production processes, satisfying electrical requirements for most electronic equipment. Advantages That Set Kinghelm Apart In terms of mechanical appearance, the KH-2501GW-08A-Z features compact construction with neatly-arranged pins. Straight through-hole pins can be firmly soldered onto PCBs to strengthen soldering reliability and reduce circuit failures caused by cold solder joints or loose terminals. When fully mated with the matching cable housing, it achieves tight engagement and resists vibration generated during equipment operation, effectively lowering risks of accidental plug disconnection. As a premium-grade wire-to-board connector, Kinghelm KH-2501GW-08A-Z delivers remarkable comprehensive performance. The standard XH-series architecture ensures stable power and signal transmission. It exhibits dependable connection performance for consumer electronics, LED lighting devices as well as compact industrial control units. Meanwhile, the component boasts favorable environmental adaptability and maintains sound working status under temperature fluctuation and minor-vibration working conditions. Kinghelm KH-2501GW-08A-Z Specification Diverse Applications for Every Environment The KH-2501GW-08A-Z wire-to-board connector suits multiple application scenarios: - Consumer Electronics: Realize wire-harness interconnection between mainboards and functional modules for power supply and signal interaction. - LED Lighting & Sensor Modules: Serve as module wiring components to guarantee normal equipment operation. - Compact Industrial Control Equipment: Complete wire-to-board interconnection and safeguard stable performance of whole devices. Conclusion: Choose Kinghelm for Reliable Interconnection All in all, Kinghelm KH-2501GW-08A-Z wire-to-board connector stands out as a preferred interconnect component thanks to its standard 2.5 mm pitch specification, rigid through-hole mounting structure and stable electrical characteristics. For manufacturers of consumer-electronic products, LED lighting equipment and compact industrial devices, selecting KH-2501GW-08A-Z means adopting proven dependable wire-to-board interconnection solutions. As electronic hardware keeps iterating toward multi-functional orientation, the KH-2501GW-08A-Z connector will keep exerting greater functions and value in more fields. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-08A-ZView Product Details

Kinghelm KH-6X6X9.5H-Z2J is a tactile switch featuring a through-hole mounting structure. The product measures 6.2 × 6.2 mm with an overall height of 9.5 mm. It offers a compact size, space-saving structure, intuitive operation, and convenient installation. The switch adopts a single-pole single-throw (SPST) circuit configuration and features a round button and PC terminals. It can be widely used in small electronic devices, control boards, power equipment, instrumentation, smart home appliances, and other products to provide reliable momentary push-button control. Kinghelm KH-6X6X9.5H-Z2J Product Image Key Specifications Product Model: KH-6X6X9.5H-Z2J Brand: Kinghelm Rated Voltage: 12 V Contact Current: 50 mA Circuit Configuration: Single-Pole Single-Throw (SPST) Mounting Type: Through-hole Product Dimensions: 6.2 × 6.2 mm Switch Height: 9.5 mm Button Shape: Round Terminal Type: PC terminals Illuminated: No Bracket: No bracket Operating Temperature: -20°C to +70°C Packaging: Bag Approx. Gross Weight: 0.41 g Compact Size for Small Electronic Devices In terms of construction, the KH-6X6X9.5H-Z2J features a conventional square tactile switch body combined with a round button. Its compact 6.2 × 6.2 mm footprint helps save PCB space, making it particularly suitable for electronic products where control-board space is limited. At the same time, the 9.5 mm overall height provides a suitable button height for manual operation, offering convenient access after the switch is mounted on the PCB. The round button design conforms to common pressing habits and provides direct tactile operation. It can be used for reset functions, function selection, mode switching, signal triggering, and other input applications. SPST Configuration for Low-Voltage, Low-Current Control From an electrical perspective, the product adopts a single-pole single-throw (SPST) circuit configuration, allowing the circuit to be connected or disconnected through a simple pressing action. Tactile switches generally operate as momentary switches, meaning the circuit is typically closed when the button is pressed and returns to its original state when released. This makes them well suited for momentary signal input. The KH-6X6X9.5H-Z2J has a rated voltage of 12 V and a contact current of 50 mA, making it suitable for low-voltage, low-current control circuits. In practical applications, engineers can use it for: Microcontroller button inputs Digital circuit control Power and reset control Device function selection Operating mode switching Low-power electronic device operation Auxiliary control circuits Through-Hole Mounting with Convenient PC Terminals The KH-6X6X9.5H-Z2J features a through-hole mounting structure and uses PC terminals for PCB installation. Compared with certain surface-mount components, through-hole tactile switches offer a straightforward mounting structure and secure mechanical installation, making them suitable for electronic products using through-hole PCBs. This mounting method is well suited to prototype development, manual soldering, small-batch production, and traditional through-hole assembly processes. The product does not include a bracket, which helps minimize additional structural space and allows designers greater flexibility when arranging components within the device. Wide Operating Temperature Range for Good Environmental Adaptability The KH-6X6X9.5H-Z2J has an operating temperature range of -20°C to +70°C, which can meet the requirements of most conventional electronic products. Under normal indoor equipment, office equipment, consumer electronics, and certain industrial control applications, this temperature range provides good environmental adaptability. In actual applications, however, the overall operating environment, PCB layout, circuit load, and specific usage conditions should still be evaluated comprehensively. Wide Range of Applications With its compact dimensions, through-hole mounting structure, and reliable push-button control capability, the Kinghelm KH-6X6X9.5H-Z2J can be used in a wide range of electronic products. Typical application areas include: Consumer electronics: Remote controls, small home appliances, electronic toys, portable devices, and more Instrumentation: Control panels, function buttons, test equipment, parameter-setting modules, and more Smart home products: Smart controllers, lighting control devices, and various smart terminals Industrial and control equipment: Control boards, equipment panels, function selectors, and auxiliary control circuits Electronic development projects: Microcontroller development boards, DIY circuits, prototype boards, and various electronic design projects Kinghelm KH-6X6X9.5H-Z2J Datasheet Conclusion The Kinghelm KH-6X6X9.5H-Z2J is a compact and practical through-hole tactile switch designed for a variety of electronic control applications. With its 6.2 × 6.2 mm compact footprint and 9.5 mm height, combined with a round button, SPST configuration, 12 V rated voltage, and 50 mA contact current, it can meet the requirements of various low-voltage electronic circuits requiring momentary button input. The product also features through-hole mounting and PC terminals, making PCB soldering and installation convenient. Its -20°C to +70°C operating temperature range provides good adaptability for a variety of operating environments. For consumer electronics, smart home products, instrumentation, control equipment, and electronic development projects, the Kinghelm KH-6X6X9.5H-Z2J offers a practical and space-efficient tactile switch solution. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-6X6X9.5H-Z2JView Product Details

Within electronic devices, connectors act as critical components for interconnection between circuit boards and wire harnesses. Reliable connection performance directly determines stable operation of complete equipment. Today we are introducing the KH-2501GW-07A-Z wire-to-board connector developed by Kinghelm. Featuring robust through-hole structure, excellent electrical performance and dependable flame-retardant capability, it has gained extensive adoption in a wide variety of electronic products. Kinghelm KH-2501GW-07A-Z Product Image Outstanding Specifications for Peak Performance Kinghelm KH-2501GW-07A-Z is a 7-position single-row straight through-hole PCB header of XH series with 2.5 mm pitch. It adopts through-hole vertical mounting for simple soldering and fits conventional through-hole plug-in production processes. - Voltage Rating: 250V - Current Rating: Up to 3 Amps - Contact Material: Brass with tin-plated finish to guarantee outstanding electrical conduction - Housing Material: PA66 engineering plastic, UL94V-0 flame-retardant rating - Operating Temperature: -25℃ ~ +85℃ These specifications fully satisfy electrical requirements for most electronic equipment. Advantages That Set Kinghelm Apart In terms of mechanical appearance, the KH-2501GW-07A-Z features compact construction with neatly-arranged pins. Straight through-hole pins can be firmly soldered onto PCBs to strengthen soldering reliability and reduce circuit failures caused by cold solder joints or loose terminals. When fully mated with the matching cable housing, it achieves tight engagement and resists vibration generated during equipment operation, effectively lowering risks of accidental plug disconnection. As a premium-grade wire-to-board connector, Kinghelm KH-2501GW-07A-Z delivers remarkable comprehensive performance. The standard XH-series architecture ensures stable power and signal transmission. It exhibits dependable connection performance for consumer electronics, LED lighting devices as well as compact industrial control units. Meanwhile, the component boasts favorable environmental adaptability and maintains sound working status under temperature fluctuation and minor-vibration working conditions. Kinghelm KH-2501GW-07A-Z Specification Diverse Applications for Every Environment The KH-2501GW-07A-Z wire-to-board connector suits multiple application scenarios: - Consumer Electronics: Realize wire-harness interconnection between mainboards and functional modules for power supply and signal interaction. - LED Lighting & Sensor Modules: Serve as module wiring components to guarantee normal equipment operation. - Compact Industrial Control Equipment: Complete wire-to-board interconnection and safeguard stable performance of whole devices. Conclusion: Choose Kinghelm for Reliable Interconnection All in all, Kinghelm KH-2501GW-07A-Z wire-to-board connector stands out as a preferred interconnect component thanks to its standard 2.5 mm pitch specification, rigid through-hole mounting structure and stable electrical characteristics. For manufacturers of consumer-electronic products, LED lighting equipment and compact industrial devices, selecting KH-2501GW-07A-Z means adopting proven dependable wire-to-board interconnection solutions. As electronic hardware keeps iterating toward multi-functional orientation, the KH-2501GW-07A-Z connector will keep exerting greater functions and value in more fields. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-07A-ZView Product Details

In modern electrical installation, lighting systems, equipment manufacturing, and industrial wiring, the stability and convenience of wire connections are essential. With the development of quick-connect technology, quick-connect wiring terminals have become widely used in various electrical connection applications due to their easy installation, improved wiring efficiency, and broad wire compatibility. For home renovation, commercial lighting, equipment manufacturing, and industrial wiring, choosing a terminal with suitable specifications and a practical structure can help improve installation efficiency and connection quality. Product Specifications Brand: Kinghelm Model: KH-KPCT-222 Product Category: Quick-Connect Wiring Terminal Structure: 2-In 2-Out Wire Entry Type: Opposite-Side Entry Rated Current: 32A Rated Voltage: 400V Wire Range: Solid wire 0.08–4.0 mm²; Stranded wire 0.08–2.5 mm² Packaging: Bagged Gross Weight: 8.37 g Kinghelm KH-KPCT-222 is a quick-connect wiring terminal featuring a 2-in 2-out structure. It adopts an opposite-side wire entry design and supports both solid and stranded wires. With a rated current of 32A and a rated voltage of 400V, it can meet a variety of electrical connection requirements. The product is supplied in bagged packaging and is lightweight, making it convenient for storage, transportation, and on-site use. Kinghelm KH-KPCT-222 Product Image 2-In 2-Out Structure for Simplified Wiring The KH-KPCT-222 features a 2-in 2-out structure, supporting the connection of two incoming and two outgoing wires. In practical wiring applications, some circuits need to be extended, connected, or distributed. Traditional connection methods may require multiple accessories, while a properly designed terminal can make the connection process more compact and organized. The 2-in 2-out configuration is suitable for various common wiring requirements and offers practical value for lighting circuits, internal equipment wiring, and other electrical connection applications. Proper use of wiring terminals can also help reduce clutter at connection points, resulting in a more organized wiring layout and making future inspection and maintenance more convenient. Opposite-Side Wire Entry for a Cleaner Layout The product uses an opposite-side wire entry design, allowing wires to be connected from opposite directions. This design helps maintain a clearer wire routing arrangement and is useful in equipment with limited installation space or a large number of wires. Inside distribution equipment, lighting fixtures, and control boxes, wires often need to be arranged in specific directions. A well-organized connection method can improve the overall wiring layout and make it easier to identify individual conductors. For projects involving large-scale installation, a clear and consistent wiring arrangement can also help improve installation efficiency. 32A Rated Current and 400V Rated Voltage The KH-KPCT-222 has a rated current of 32A and a rated voltage of 400V, which are important electrical specifications of the product. When selecting a wiring terminal, users should consider the actual operating current, system voltage, and load conditions of the circuit. Different applications may have different current and voltage requirements. Therefore, the actual operating conditions should remain within the specified product ratings. Proper product selection and standardized installation are important for maintaining stable electrical connections. Compatible with Both Solid and Stranded Wires In terms of wire compatibility, the KH-KPCT-222 supports solid wires ranging from 0.08 to 4.0 mm² and stranded wires ranging from 0.08 to 2.5 mm². Since electrical circuits may use wires of different sizes, this wide connection range provides greater flexibility for practical wiring applications. Solid wires are commonly used for fixed installations, while stranded wires offer greater flexibility and can be suitable for applications requiring more flexible routing. The KH-KPCT-222 supports both types of conductors, providing users with greater versatility. During installation, users should ensure that the wire size is within the specified range and prepare the wire according to applicable installation requirements. After wiring, the connection should be checked to ensure that the conductors are properly installed. Bagged Packaging for Convenient Storage and Carrying The KH-KPCT-222 is supplied in bagged packaging with a gross weight of approximately 8.37 g. Its lightweight design makes the product convenient for storage, transportation, and on-site use. For electricians and engineering professionals, wiring terminals are commonly used electrical components that may be required in different quantities depending on the project. Bagged packaging facilitates storage and management and makes the terminals easy to carry in a toolbox or parts container. With its compact size and light weight, the product takes up little space during home renovation, electrical equipment installation, and engineering projects, providing added convenience for users. Suitable for Various Wiring Applications With its 2-in 2-out structure, opposite-side wire entry design, and broad wire compatibility, the Kinghelm KH-KPCT-222 can be used in a variety of electrical connection applications. It may be selected for suitable wiring requirements in home renovation and lighting installation. It can also be used for certain lighting and electrical connections in commercial buildings and offices, as well as internal wiring in electrical equipment. In addition, it can be selected for industrial control systems and other electrical equipment according to the actual current, voltage, and wire specifications. Quick-connect wiring terminals can simplify certain wiring operations, but different projects may have different circuit conditions and installation environments. Therefore, users should select and install the product according to their specific application requirements. Proper Installation for Reliable Connections Although the wiring terminal is compact, proper installation remains important. Before installation, the power supply should be in a safe condition, and the wire size should be checked to ensure compatibility with the specified connection range. During wiring, the wire insulation should be prepared properly to avoid damaging the conductor, and the wire should be installed correctly. After the connection is completed, the terminal position, wire routing, and overall wiring layout should be inspected to ensure they meet the requirements of the application. The wires should also be protected from excessive pulling, compression, or other external forces. In humid, high-temperature, or other special environments, appropriate protective measures should be considered. For complex electrical projects, installation and maintenance should be carried out by qualified personnel. Kinghelm KH-KPCT-222 Specification Sheet Conclusion The Kinghelm KH-KPCT-222 is a quick-connect wiring terminal featuring a 2-in 2-out structure and an opposite-side wire entry design. It has a rated current of 32A and a rated voltage of 400V and supports solid wires from 0.08 to 4.0 mm² and stranded wires from 0.08 to 2.5 mm², meeting a variety of electrical wiring requirements. With its bagged packaging and lightweight design, the KH-KPCT-222 is convenient for storage, transportation, and on-site installation. It can be selected for applications such as home renovation, lighting projects, electrical equipment, and industrial wiring according to actual current, voltage, and wire specifications. Proper selection and installation can help ensure stable and reliable electrical connections. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-KPCT-222View Product Details

KH-FPC0.5-H1.2SMT-20P-QCHF is a high-performance FPC flexible circuit board connector introduced by Kinghelm. Featuring a precision 0.5 mm pitch and a 20-pin contact configuration, it supports dual-sided contacts and top-and-bottom contact structures for excellent compatibility. The product adopts a flip-lock design (front insertion with rear flip-down locking) and horizontal SMT surface-mount technology. With an above-board height of only 1.2 mm, it offers a compact footprint, stable connection performance, and easy installation. It is widely used in precision electronic devices with demanding space and reliability requirements, including consumer electronics, smart wearables, automotive modules, industrial control systems, and medical instruments. Product Specifications Specification Parameter Locking Mechanism Flip-lock type (front insertion, rear flip-down) Contact Type Dual-sided contacts / top-and-bottom contact Number of Contacts 20P Pitch 0.5 mm Mounting Style Horizontal / right-angle surface mount Applicable FPC Thickness 0.3 mm Above-Board Height 1.2 mm Contact Material Phosphor bronze Operating Temperature -25°C to +85°C Rated Voltage 50 V FPC/FFC Latch Without additional latch Pin Orientation No distinction between forward and reverse orientation 1. Industry Background: Growing Demand for Flexible Connectors Consumer electronics, smart wearables, automotive electronics, and industrial control systems are continuously evolving toward thinner, smaller, and higher-density designs. As a critical bridge connecting flexible cables to PCB boards, FPC (Flexible Printed Circuit) connectors have become increasingly important. FPCs are made from flexible insulating substrates and offer key advantages such as bendability, foldability, light weight, and ultra-thin profiles. They are widely used in various electronic products. According to market research forecasts, the global FFC and FPC connector market was valued at approximately US$3.915 billion in 2025 and is expected to reach US$6.499 billion by 2033, representing a compound annual growth rate of 6.54%. Against this backdrop, FPC connectors featuring precision pitch, ultra-low profile designs, and convenient operation are becoming increasingly popular among electronic design engineers. Kinghelm KH-FPC0.5-H1.2SMT-20P-QCHF Product Image 2. Core Specifications and Features The Kinghelm KH-FPC0.5-H1.2SMT-20P-QCHF is a 20-pin FPC connector with a 0.5 mm pitch, supporting dual-sided and top-and-bottom contact configurations. It features a flip-lock structure with front insertion and rear flip-down locking, as well as a horizontal SMD surface-mount design. With an above-board height of only 1.2 mm, the connector is designed for applications requiring an ultra-thin profile. It accommodates flexible cables with a thickness of 0.3 mm and uses high-quality phosphor bronze contacts. The product has a rated voltage of 50 V and an operating temperature range of -25°C to +85°C. Supplied in tape-and-reel packaging, it is an ultra-thin solution in the FFC/FPC connector category. 3. Flip-Lock Front-Insertion, Rear-Flip Structure The KH-FPC0.5-H1.2SMT-20P-QCHF uses a flip-lock design, which is one of its most important structural features. During assembly, the FPC cable is first inserted from the front into the connector's contact area. The upper cover is then flipped downward to lock the cable securely in place. This mechanism enables fast cable installation in both manual assembly and automated production environments. The flip-lock structure also allows convenient visual inspection of the contact condition, effectively reducing the risk of incorrect or misaligned insertion. Compared with conventional sliding-lock or side-push structures, the flip-lock design saves space while improving operational stability and assembly efficiency. It is particularly suitable for high-volume production environments. The locking cover also enhances vibration resistance and cable retention, helping ensure a stable electrical connection during long-term operation or under demanding environmental conditions. From a mechanical perspective, the main body of the front-insertion, rear-flip FPC connector features open hooks on both sides. The ends of the cover are provided with pivot structures that engage with these hooks, allowing the cover to rotate relative to the connector body. The cover includes a fastening section that applies force to the terminals, generating the pressure required for the terminal arms to clamp the flexible cable. The direction of force applied to the fastening section when the cable is pulled differs from the direction required to open the cover. This design accommodates various cable installation angles and helps prevent accidental opening of the cover, especially when upward or downward forces act on the flexible cable. 4. Precision 0.5 mm Pitch and Dual-Sided Contact Design The 0.5 mm fine pitch meets the requirements of high-density circuit layouts. As PCB space becomes increasingly limited, this pitch allows more connection points to be integrated within a compact area. Compared with connectors featuring larger pitches, a 0.5 mm pitch provides higher wiring density within the same width, helping optimize the overall PCB size. Compared with even finer-pitch products, it is easier to control manufacturing tolerances, assembly stability, and long-term reliability. For the KH-FPC0.5-H1.2SMT-20P-QCHF, 20 contacts are arranged compactly at a 0.5 mm pitch. This configuration ensures multi-channel signal transmission while providing engineers with greater flexibility during product and PCB design. The dual-sided, top-and-bottom contact design further improves compatibility and reliability. The FPC cable can achieve stable electrical conduction through either upper or lower contact configurations, reducing installation-direction restrictions. The design with no distinction between forward and reverse orientation simplifies the assembly process and significantly reduces operator errors. With top-and-bottom dual-contact construction, even if one contact surface is affected by debris, the other contact can still maintain a reliable connection. The dual-sided contact structure engages with both sides of the FPC cable, increasing the effective contact area compared with single-sided contact designs and reducing the risk of intermittent connections. Stable connectivity can therefore be maintained even in vibration-prone environments. 5. Ultra-Low 1.2 mm Above-Board Height and Horizontal Mounting The KH-FPC0.5-H1.2SMT-20P-QCHF has an above-board height of only 1.2 mm, making it suitable for ultra-thin, low-profile applications. As electronic devices increasingly pursue slimmer designs, low-profile connectors can significantly reduce the overall stacking height and improve space utilization between the PCB and components such as displays, cameras, and batteries. The compact 1.2 mm height allows the connector to be integrated into height-restricted modules without sacrificing functionality. The horizontal mounting configuration keeps the connector parallel to the PCB, reducing overall height while improving mechanical strength after soldering. For automated SMT production lines, the SMD package is fully compatible with standard manufacturing processes, helping improve production efficiency and assembly consistency. Compared with conventional vertical connectors, the horizontal structure expands along the PCB surface and effectively controls the total height of the assembly. Tape-and-reel packaging is also specifically designed for automated pick-and-place equipment, reducing manual handling and supporting consistent high-volume production. 6. Electrical Performance and Reliability In terms of electrical performance, the KH-FPC0.5-H1.2SMT-20P-QCHF has a rated voltage of 50 V and an operating temperature range of -25°C to +85°C. The contacts are made from phosphor bronze, providing good electrical conductivity and corrosion resistance. The surface-mount package helps ensure consistent and reliable solder joints while reducing failures caused by manual soldering errors. The well-designed contact structure helps maintain stable signal transmission and reduces the impact of poor contact conditions. For low-voltage signal applications, the connector can meet the requirements of common control-signal and data-connection applications. 7. Kinghelm Brand Strength Kinghelm was established in 2007 and is a national high-tech enterprise. The company is a member of the China Satellite Navigation Association, the China Information Industry Chamber of Commerce, and the Guangdong Connector Association. Kinghelm specializes in technology research, product design, manufacturing, sales, and service for microwave and RF signal transmission and reception products, miniature electronic connectors, and interconnection systems. Its technical team includes professionals from Tsinghua University and the University of Electronic Science and Technology of China. The company has obtained ISO 9001 certification and complies with European RoHS and REACH standards. The Kinghelm KH product range includes three major categories: BeiDou/GPS antennas and RF adapters; electrical and data-signal connectors, terminals, and plugs; and customized automotive and motorcycle wire harnesses, industrial and medical connectors, and specialized antenna connectors. Kinghelm products are widely used in new energy vehicles, intelligent terminals, smart cities, the industrial internet, medical equipment, and commercial aerospace. Kinghelm KH-FPC0.5-H1.2SMT-20P-QCHF Datasheet 8. Typical Applications Based on its structural features and specifications, the KH-FPC0.5-H1.2SMT-20P-QCHF is suitable for a wide range of compact electronic devices. Typical applications include: Signal connections between display modules and main control boards Flexible cable connections between camera modules and mainboards Display module connections in smart wearables and portable terminals Small flexible-cable connections in portable electronic devices Short-distance flexible interconnections in automotive modules and instrument panels Miniature industrial sensor modules Consumer electronics such as game controllers Data transmission interfaces between mainboards and daughter boards Whether used in smartphones, Bluetooth earphones, drones, industrial control boards, or medical testing equipment, the Kinghelm KH-FPC0.5-H1.2SMT-20P-QCHF demonstrates excellent adaptability. 9. Conclusion The Kinghelm KH-FPC0.5-H1.2SMT-20P-QCHF is a high-performance FPC connector that combines a precision pitch, ultra-thin profile, flip-lock mechanism, and dual-sided contact structure. Its key features—including a 0.5 mm pitch, 1.2 mm above-board height, and flip-lock structure—demonstrate excellent engineering precision while balancing installation convenience and long-term connection stability. For manufacturers seeking improved reliability and performance, this Kinghelm FPC connector can be an important component choice for enhancing product quality and optimizing structural design. As modern electronic products continue to become more compact and functionally integrated, high-density and high-precision connectors such as the KH-FPC0.5-H1.2SMT-20P-QCHF are becoming increasingly important in next-generation electronic designs. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-FPC0.5-H1.2SMT-20P-QCHFView Product Details

Within electronic devices, connectors act as critical components for interconnection between circuit boards and wire harnesses. Reliable connection performance directly determines stable operation of complete equipment. Today we are introducing the KH-2501GW-05A-Z wire-to-board connector developed by Kinghelm. Featuring robust through-hole structure, excellent electrical performance and dependable flame-retardant capability, it has gained extensive adoption in a wide variety of electronic products. Kinghelm KH-2501GW-05A-Z Product Image Outstanding Specifications for Peak Performance Kinghelm KH-2501GW-05A-Z is a 5-position single-row straight through-hole PCB header of XH series with 2.5 mm pitch. It adopts through-hole vertical mounting for simple soldering and fits conventional through-hole plug-in production processes. - Voltage Rating: 250V - Current Rating: Up to 3 Amps - Contact Material: Brass with tin-plated finish to guarantee outstanding electrical conduction - Housing Material: PA66 engineering plastic, UL94V-0 flame-retardant rating - Operating Temperature: -25℃ ~ +85℃ These specifications fully satisfy electrical requirements for most electronic equipment. Advantages That Set Kinghelm Apart In terms of mechanical appearance, the KH-2501GW-05A-Z features compact construction with neatly-arranged pins. Straight through-hole pins can be firmly soldered onto PCBs to strengthen soldering reliability and reduce circuit failures caused by cold solder joints or loose terminals. When fully mated with the matching cable housing, it achieves tight engagement and resists vibration generated during equipment operation, effectively lowering risks of accidental plug disconnection. As a premium-grade wire-to-board connector, Kinghelm KH-2501GW-05A-Z delivers remarkable comprehensive performance. The standard XH-series architecture ensures stable power and signal transmission. It exhibits dependable connection performance for consumer electronics, LED lighting devices as well as compact industrial control units. Meanwhile, the component boasts favorable environmental adaptability and maintains sound working status under temperature fluctuation and minor-vibration working conditions. Kinghelm KH-2501GW-05A-Z Specification Diverse Applications for Every Environment The KH-2501GW-05A-Z wire-to-board connector suits multiple application scenarios: - Consumer Electronics: Realize wire-harness interconnection between mainboards and functional modules for power supply and signal interaction. - LED Lighting & Sensor Modules: Serve as module wiring components to guarantee normal equipment operation. - Compact Industrial Control Equipment: Complete wire-to-board interconnection and safeguard stable performance of whole devices. Conclusion: Choose Kinghelm for Reliable Interconnection All in all, Kinghelm KH-2501GW-05A-Z wire-to-board connector stands out as a preferred interconnect component thanks to its standard 2.5 mm pitch specification, rigid through-hole mounting structure and stable electrical characteristics. For manufacturers of consumer-electronic products, LED lighting equipment and compact industrial devices, selecting KH-2501GW-05A-Z means adopting proven dependable wire-to-board interconnection solutions. As electronic hardware keeps iterating toward multi-functional orientation, the KH-2501GW-05A-Z connector will keep exerting greater functions and value in more fields. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-05A-ZView Product Details

I. Industry Background: The FPC Connector Market Continues to Grow With the continuous trend toward thinner, smaller, and higher-density designs in consumer electronics, smart wearables, automotive electronics, industrial control, and other fields, FPC (Flexible Printed Circuit) connectors are playing an increasingly important role as a key bridge between flexible cables and PCBs. Made from flexible insulating substrates, FPCs offer outstanding advantages such as flexibility, foldability, light weight, and ultra-thin construction, making them widely used in consumer electronics, automotive electronics, and many other applications. In terms of market size, the global FFC and FPC connector market is maintaining steady growth. According to market research forecasts, the global FFC and FPC connector market is expected to reach approximately USD 3.915 billion in 2025 and grow to USD 6.499 billion by 2033, representing a compound annual growth rate (CAGR) of 6.54%. Against this backdrop, FPC connector products featuring fine pitch, ultra-low profile, and convenient operation are becoming an ideal solution for electronic design engineers. Kinghelm, a national-level high-tech enterprise, has been deeply engaged in the connector industry for more than a decade. Its technical team includes professionals from Tsinghua University and the University of Electronic Science and Technology of China (UESTC). Under the Kinghelm brand, the KH series covers three major categories: BeiDou/GPS antennas, RF adapters, electrical/data signal connectors, terminals and connectors, as well as customized automotive and motorcycle wiring harnesses. Kinghelm has obtained ISO 9001, RoHS, and REACH certifications, while IATF 16949 automotive quality management system certification and UL/TUV certifications are currently under application. The KH-FPC0.5-H1.2SMT-12P-QCHF FPC connector is one of its products specifically designed to meet the demands for high-density and slim electronic designs. Kinghelm KH-FPC0.5-H1.2SMT-12P-QCHF Product II. Key Specifications The product's most important specifications are as follows: Contact Pitch: 0.5 mm (fine pitch for high-density applications) Number of Contacts: 12P (12 positions) Board Height: 1.2 mm (ultra-low profile) Mounting Type: Horizontal SMT (surface mount), tape-and-reel packaging Locking Structure: Flip-lock type (front insertion and rear flipping), dual-sided contacts/top-and-bottom contact, no orientation requirement Operating Temperature: -25°C to +85°C In addition, the product has a rated voltage of 50 V, phosphor bronze contacts, and supports 0.3 mm-thick FPCs. These specifications also meet the requirements of conventional applications. III. Key Features and Technical Advantages 1. Flip-Lock Structure with Front Insertion and Rear Flipping The KH-FPC0.5-H1.2SMT-12P-QCHF adopts a flip-lock structure, which is one of its most distinctive design features. During FPC assembly, the flexible cable is first inserted into the contact area from the front of the connector, after which the upper cover is flipped downward to lock the FPC securely in place. This operation can be completed quickly in both manual assembly and automated production environments. The flip-lock mechanism also facilitates visual inspection of the connection status, effectively reducing the risk of incorrect or angled insertion. Compared with conventional sliding-lock or side-push structures, the flip-lock design saves space while improving operating stability and assembly efficiency, making it particularly suitable for high-volume production. The locking mechanism also enhances resistance to vibration and accidental disengagement, helping maintain a stable electrical connection during long-term operation or under demanding environmental conditions. 2. 0.5 mm Fine Pitch and Dual-Sided Contact Design The 0.5 mm fine pitch meets the requirements of high-density circuit layouts. As PCB space becomes increasingly limited, this pitch enables more connection points to be integrated into a compact area. The dual-sided/top-and-bottom contact design further enhances compatibility and reliability. The FPC can make stable electrical contact regardless of whether it is oriented toward the upper or lower contact surface, reducing restrictions on assembly orientation. The no-polarity/no-orientation design also simplifies the assembly process, eliminating the need for operators to identify the insertion direction and significantly reducing the risk of assembly errors. 3. Ultra-Low 1.2 mm Board Height and Horizontal SMT Mounting With a board height of only 1.2 mm, the connector features an ultra-low-profile design. As electronic devices continue to pursue increasingly slim form factors, low-profile connectors can significantly reduce overall stacking height and make more efficient use of the limited space between the mainboard and components such as displays, cameras, and batteries. The horizontal SMT configuration supports stable mechanical fixation and reliable soldering through standard surface-mount technology. Tape-and-reel packaging is compatible with high-speed pick-and-place equipment, helping improve production efficiency and reduce labor costs. 4. Stable Electrical and Environmental Performance The product features a rated voltage of 50 V and an operating temperature range of -25°C to +85°C, making it suitable for stable long-term operation under a variety of conventional environmental conditions. The contacts are made of phosphor bronze, which offers good electrical conductivity and fatigue resistance, helping ensure reliable contact performance during repeated mating and unmating cycles. IV. Application Scenarios With its ultra-low profile, fine pitch, and flip-lock structure, the KH-FPC0.5-H1.2SMT-12P-QCHF is suitable for a wide range of applications, including: Smart Wearable Devices: Smartwatches, fitness bands, TWS earbuds, etc. Smartphones and Tablets: Connections between mainboards and displays, camera modules, batteries, and other components Display Modules: FPC connections for LCD and OLED displays Camera Modules: Smartphone and security camera modules Portable Medical and Industrial Control Equipment: Handheld terminals, portable medical instruments, industrial boards, and other compact electronic devices V. Usage Precautions Ensure that the FPC is inserted centrally and avoid angled or misaligned insertion. Operate the flip-lock mechanism gently to prevent mechanical damage. Follow the recommended SMT soldering profile and properly control soldering temperature and time. Confirm that the FPC thickness is 0.3 mm and is compatible with the connector. Do not operate the product beyond its rated voltage or specified operating temperature range. Kinghelm KH-FPC0.5-H1.2SMT-12P-QCHF Datasheet VI. Conclusion The KH-FPC0.5-H1.2SMT-12P-QCHF is a 0.5 mm-pitch, 12-pin flip-lock FPC connector featuring horizontal SMT mounting and an ultra-low 1.2 mm profile. With its compact structure, convenient assembly, and reliable connection performance, it is well suited to the high-density interconnection requirements of various compact electronic devices. With a continued focus on innovation and quality, Kinghelm is committed to serving customers worldwide. The KH-FPC0.5-H1.2SMT-12P-QCHF is a representative product that demonstrates Kinghelm's capabilities in the FPC connector field. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-FPC0.5-H1.2SMT-12P-QCHFView Product Details

I. Industry Background: Continuous Growth in Demand for Flexible Connectors Under the ongoing trends toward thinner, lighter, miniaturized, and high-density designs in consumer electronics, smart wearables, automotive electronics, industrial control, and other fields, FPC (Flexible Printed Circuit) connectors—as the core bridge between flexible flat cables and PCB boards—are playing an increasingly vital role. FPC flexible circuits, made of flexible insulating substrates, offer outstanding advantages such as bendability, foldability, light weight, and ultra-thin profiles, and are widely used in numerous applications including consumer electronics and automotive electronics. In terms of market size, the global FFC and FPC connector market is maintaining steady growth. According to market research forecasts, the global FFC and FPC connector market was approximately USD 3.915 billion in 2025 and is projected to reach USD 6.499 billion by 2033, with a compound annual growth rate (CAGR) of 6.54%. Meanwhile, the flexible connector market reached USD 23.89 billion in 2024 and is expected to grow at a CAGR of 13.7% from 2025 to 2030, significantly outpacing traditional rigid connectors. Against this backdrop, FPC connector products featuring fine pitch, ultra-low profile, and easy handling are becoming the preferred choice for electronic design engineers. Kinghelm KH-FPC0.5-H1.2SMT-10P-QCHF Product Image II. Product Overview: KH-FPC0.5-H1.2SMT-10P-QCHF Key Specifications The KH-FPC0.5-H1.2SMT-10P-QCHF, introduced by Kinghelm, is an FPC flexible circuit connector designed with a precision 0.5mm pitch, featuring 10 contacts and dual-contact / top-bottom mating capability. It adopts a flip-lock (front-insertion, rear-flip) structure, with a surface-mount (SMD) horizontal mounting style. The on-board height is only 1.2mm, and the accepted flexible cable thickness is 0.3mm. The contact material is high-quality phosphor bronze. The product has a rated voltage of 50V, an operating temperature range of -25°C to +85°C, and is supplied in tape-and-reel packaging. With a gross weight of just 0.43g, it is an ultra-lightweight product in the FFC/FPC connector category. III. Core Features and Structural Advantages 1. Flip-Lock Front-Insertion Rear-Flip Structure The KH-FPC0.5-H1.2SMT-10P-QCHF adopts a flip-lock (front-insertion, rear-flip) design, which is its most prominent structural highlight. During assembly of the FPC flexible cable, the cable is first inserted from the front into the contact area of the connector housing, and then the top cover is flipped downward to complete the locking. This method enables fast operation in both manual assembly and automated production environments. The flip mechanism also facilitates visual inspection of the contact status, effectively reducing the risk of mis-insertion and skewed insertion. Compared to traditional slide-lock or side-push structures, the flip-lock design saves space while improving operational stability and assembly efficiency, making it particularly suitable for mass production. The locking cover also enhances resistance to vibration and dislodgement, ensuring stable electrical connections even under long-term operation or harsh conditions. 2. 0.5mm Precision Pitch and Dual-Contact Design The 0.5mm fine-pitch spacing meets the needs of high-density circuit layouts. As PCB space becomes increasingly constrained, this pitch allows more connection points within a limited area. The dual-contact / top-bottom mating design further enhances compatibility and reliability—the FPC cable can be mated from either the top or bottom side, reducing orientation restrictions during assembly and helping to improve production yield. Additionally, the orientation-free design simplifies the assembly process, as operators do not need to judge direction, significantly lowering error rates. 3. 1.2mm Ultra-Low On-Board Height and Horizontal SMD Mounting With an on-board height of only 1.2mm, this product falls into the ultra-thin low-profile category. In the trend toward extremely slim devices, low-height connectors significantly reduce stacking thickness, enabling more efficient utilization of space between the mainboard and components such as displays, cameras, and batteries. The compact 1.2mm height allows easy integration into height-restricted modules without sacrificing functionality. The horizontal mounting style, combined with SMD soldering, ensures stable mechanical fixation and excellent solder joint reliability, meeting the high-efficiency production demands of automated assembly lines. Tape-and-reel packaging further accommodates high-speed pick-and-place machines, reducing labor costs and improving manufacturing consistency. 4. High-Quality Phosphor Bronze Contacts and Wide Operating Temperature Range The contacts are made of phosphor bronze, which offers excellent elasticity and conductivity, maintaining stable contact force during repeated insertion and extraction cycles and effectively lowering contact resistance. The operating temperature range of -25°C to +85°C accommodates common temperature variations in consumer and industrial environments, ensuring stable performance in both low winter temperatures and high internal equipment temperatures. The 50V rated voltage satisfies the vast majority of low-voltage signal transmission requirements, suitable for digital signals, control signals, and low-power power supply scenarios. IV. Typical Application Scenarios With its ultra-low profile and 0.5mm precision pitch, the KH-FPC0.5-H1.2SMT-10P-QCHF is widely applicable to various space-constrained electronic devices, including: Smart Wearables: Smartwatches, wristbands, Bluetooth earphones, and other products with extreme size and weight requirements, connecting displays, sensors, and mainboards. Smartphones & Tablets: Interconnection between mainboards and display modules, camera modules, and batteries via flexible cables. Display Modules: FPC connections for small-size LCD/OLED screens, enabling high-definition signal transmission. Camera Modules: Connections between CMOS sensors and main control boards in mobile phones, security surveillance cameras, and automotive cameras. Medical Electronics: Portable monitors, glucose meters, ultrasound probes, and other miniaturized medical devices. Industrial Control: Industrial handheld terminals, micro-sensor modules, and internal signal wiring in PLCs. V. Brand Strength and Quality Assurance Kinghelm is a well-known brand under Shenzhen Kinghelm Electronics Co., Ltd., with over a decade of experience in the design, manufacturing, sales, and technical services of wireless signal transmission, electronic signal connectors, and interconnection system products. The technical team, which includes graduates from Tsinghua University and the University of Electronic Science and Technology of China, along with outstanding returnees, has deep expertise in microwave RF and precision connector fields. Kinghelm has obtained multiple invention patents, ISO9001 certification, RoHS and REACH environmental compliance certifications, and is currently applying for IATF16949 automotive quality system certification, UL, TUV, and other certifications. The company's product line has expanded from initial Beidou/GPS dual-mode antennas, Bluetooth, WiFi, and other antenna products to include board-to-wire connectors, board-mount sockets, interconnection terminals, signal switches, as well as automotive/motorcycle wiring harnesses, industrial/medical/scientific special cables, and non-standard custom components—three major series offering one-stop interconnection solutions to customers. Kinghelm KH-FPC0.5-H1.2SMT-10P-QCHF Specification Sheet VI. Summary The Kinghelm KH-FPC0.5-H1.2SMT-10P-QCHF is a high-quality FPC connector integrating 0.5mm precision pitch, 1.2mm ultra-low on-board height, a flip-lock front-insertion rear-flip structure, dual-contact design, and SMD horizontal mounting process. The product excels in structural compactness, assembly convenience, connection stability, and electrical performance. It provides stable and reliable FPC-to-PCB signal transmission solutions for a wide range of space-constrained electronic devices, including smartphones, smart wearables, display modules, camera modules, medical electronics, and industrial control equipment. Against the backdrop of continued growth in the global FPC connector market, this product—backed by its outstanding features and Kinghelm's quality assurance—is undoubtedly a reliable choice for electronic design engineers in high-density, ultra-thin product selection. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-FPC0.5-H1.2SMT-10P-QCHFView Product Details

In various electronic devices, connectors serve as core components for power and signal transmission between circuit boards and wire harnesses. Connection quality directly determines the overall equipment stability. Today we are introducing the KH-2501GW-03A-Z wire-to-board connector developed by Kinghelm. Featuring robust mating structure, excellent electrical performance and reliable flame-retardant properties, it has gained extensive adoption across diverse electronic products. Kinghelm KH-2501GW-03A-Z Product Image Outstanding Specifications for Peak Performance Kinghelm KH-2501GW-03A-Z is a 3-position single-row straight through-hole PCB header with 2.5 mm pitch. It adopts through-hole vertical mounting for simple soldering and fits conventional through-hole production processes. Voltage Rating: 250V Current Rating: Up to 3 Amps Contact Material: Brass with tin-plated finish to guarantee excellent electrical conduction Housing Material: PA66 engineering plastic, UL94V-0 flame-retardant rating Operating Temperature: -25℃ ~ +85℃ These specifications fully satisfy electrical requirements for most in-device applications. Advantages That Set Kinghelm Apart In terms of mechanical appearance, the KH-2501GW-03A-Z follows standard XH-series structure with compact outline and neatly-arranged pins. Straight through-hole pins can be firmly soldered onto PCBs to enhance soldering strength and reduce circuit failures caused by cold solder joints or loose terminals. When mated with the matching cable housing, it achieves tight engagement and resists ordinary vibration interference to prevent accidental disconnection. As a premium wire-to-board connector, Kinghelm KH-2501GW-03A-Z delivers remarkable comprehensive performance. It features low contact resistance for stable power and signal transmission. It maintains dependable connection under temperature fluctuation and minor vibration, adapting to multiple regular working conditions. Meanwhile, the flame-retardant housing offers basic internal safety protection for equipment. Kinghelm KH-RJ45-56-8P8C-D-T Specification Diverse Applications for Every Environment The KH-2501GW-03A-Z supports broad application scenarios: - Consumer Electronics: Realize wire-harness interconnection between circuit boards and peripheral modules for power supply and signal transfer. - LED Control Equipment & Sensor Modules: Act as module wiring connectors to ensure normal device operation. - Compact Industrial Equipment & Portable Electronic Devices: Complete wire-to-board interconnection and safeguard stable overall equipment performance. Conclusion: Choose Kinghelm for Reliable Interconnection All in all, Kinghelm KH-2501GW-03A-Z wire-to-board connector stands out as a preferred interconnect component thanks to its standard 2.5 mm pitch, rigid through-hole construction and stable electrical characteristics. For manufacturers of consumer electronics, LED products and small-sized industrial equipment, selecting KH-2501GW-03A-Z means adopting proven dependable wire-to-board connection solutions. As electronic hardware keeps evolving, the KH-2501GW-03A-Z connector will keep playing an important role in more electronic products. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-2501GW-03A-ZView Product Details

In electronic devices, dependable signal and power transmission hinges on high-performance connectors. Serving as critical bridges between circuit boards and wire harnesses, connectors directly determine the overall operating stability of equipment. Today we will introduce the KH-A1000RSL-10P wire-to-board connector from Kinghelm. Boasting a compact footprint, excellent conductive performance and superior temperature resistance, this component is widely deployed across a broad spectrum of electronic products. Kinghelm KH-A1000RSL-10P is a 10-position horizontal surface-mount wafer with locking latch at a 1.0 mm pitch. Its horizontal SMD mounting supports automated tape-and-reel production for efficient assembly processes. Rated at 50 V and 1 A, the contacts are constructed from phosphor bronze with tin plating to guarantee stable electrical conduction. The operating temperature spans from -25 °C to +85 °C. The insulator housing adopts LCP engineering plastic that meets UL94V-0 flammability requirements, satisfying general electrical demands for most electronic equipment. Kinghelm KH-A1000RSL-10P Product Image Structural & Mechanical Advantages The KH-A1000RSL-10P features built-in locking latches. Once fully mated, the latch firmly secures the mated plug, effectively preventing accidental disconnection and signal drop-out under vibration conditions. The 1.0 mm fine-pitch layout conserves valuable PCB space, making it perfectly suited for miniaturized devices with limited internal room. Neatly arranged terminals deliver robust soldering performance and reduce circuit failures caused by cold solder joints. Delivering premium overall performance, the Kinghelm KH-A1000RSL-10P wire-to-board connector features low contact resistance and consistent power-signal transmission. It maintains steady electrical connection in the face of vibration and temperature variation, adapting to multiple complex working conditions. Diverse Application Scenarios The KH-A1000RSL-10P supports versatile implementation across multiple industries: - Consumer Electronics: Realize harness interconnection between mainboards and functional modules for power supply and signal exchange. - Smart-Home Devices: Establish reliable connections for sensors and key modules to guarantee normal device operation. - Compact Industrial Control Modules: Complete internal wire-to-board interconnection to underpin stable equipment performance. Kinghelm KH-A1000RSL-10P Specification Conclusion: Trust Kinghelm for Stable Interconnection All in all, Kinghelm KH-A1000RSL-10P wire-to-board connector stands as a preferred interconnect component thanks to its compact dimension, anti-disengagement latch structure and reliable electrical characteristics. For manufacturers engaged in consumer electronics, smart-home hardware and small-sized industrial controls, selecting KH-A1000RSL-10P means adopting proven stable wire-to-board connection solutions. As electronic hardware keeps trending toward miniaturization, the KH-A1000RSL-10P connector will keep delivering great value in more electronic devices. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-A1000RSL-10PView Product Details

I. Product Overview The KH-EC561V10T302 is a 56 mm, low-profile, slim rotary encoder launched by Kinghelm. The product uses an SMD package, is supplied in bag packaging, and has a gross weight of approximately 14.8 g per unit. As an incremental rotary encoder, the KH-EC561V10T302 generates pulse signals or position-change information through rotational movement. It is widely used in audio equipment, home appliances, industrial control systems, instrumentation, automotive electronics, and smart terminals. Kinghelm KH-EC561V10T302 Product Image II. Key Technical Specifications The core specifications of the KH-EC561V10T302 are as follows: Encoder type: Incremental Number of detents / pulses: 30 / 15 Output type: Dual-phase output Rated voltage: 5 V Rated current: 10 mA Mounting method: Through-hole Operating temperature: -20°C to +80°C Insulation resistance: ≥100 MΩ The combination of 30 detents and 15 pulses means that the encoder can generate 15 pulse signals per rotation while providing 30 tactile positioning points. This detent design gives the operator a clear stepped or tactile feel during rotation, enabling precise adjustment. The dual-phase output (Phase A and Phase B) can determine the direction of rotation through the phase difference between the two signals, typically 90 degrees, providing the control system with both speed and direction information. III. Operating Principle Incremental rotary encoders convert the timing and phase relationships generated by a rotating code wheel into information about increases or decreases in angular displacement. Taking a photoelectric incremental encoder as an example, its fundamental operating principle is based on optical grating interruption. As the code wheel rotates, the interaction between the grating and the photosensitive components generates alternating high- and low-level pulse signals. Unlike absolute encoders, which measure absolute position, incremental encoders generate relative pulse signals during rotation to indicate the speed and direction of the rotating object. An incremental encoder can provide changes in position rather than absolute position. Therefore, the system generally requires a reference point or zeroing operation to determine the absolute position. However, because of their simple structure and relatively low cost, incremental encoders are particularly suitable for applications that require basic position feedback and are sensitive to cost. IV. Application Scenarios Typical applications of the KH-EC561V10T302 include: Consumer Electronics:Used for volume control, menu navigation, parameter adjustment, and other human-machine interface functions in audio equipment. Incremental encoders are also widely used in devices such as computer mouse scroll wheels. Industrial Control:Used as an adjustment knob on control panels for functions such as speed setting and position control. Incremental encoders are commonly used for position control and motor speed feedback. Automotive Electronics:Suitable for in-vehicle entertainment system controls, air-conditioning adjustment, and other applications. Incremental encoders can also be used for position sensing in automotive windows, sunroofs, seats, and rear-view mirrors. Instrumentation:Used for parameter adjustment and data input in precision measurement equipment. V. Product Advantages As part of Kinghelm's rotary encoder product line, the KH-EC561V10T302 offers the following advantages: Compact structure: The 56 mm design combined with a low-profile, slim structure makes it suitable for space-constrained applications. Precise positioning: Thirty detents provide clear tactile feedback, helping ensure accurate operation. Smooth operation: An optimized mechanical structure provides a smooth rotational feel. Long service life and high reliability: As a national high-tech enterprise, Kinghelm has a technical team with expertise from Tsinghua University and the University of Electronic Science and Technology of China, providingstrong R&D capabilities for highly reliable products. VI. Convenient Procurement Channels The KH-EC561V10T302 is now available on the LCSC online marketplace, allowing engineers and procurement professionals to conveniently obtain samples or place bulk orders. LCSC provides detailed technical documentation for the product, including datasheets, pin diagrams, and PCB footprint drawings. These resources help users with component selection and design integration, effectively shortening product development cycles. VII. Brand Strength Kinghelm, established in 2007, is a national high-tech enterprise and a member of the China Satellite Navigation and Positioning Association, the China Information Industry Chamber of Commerce, and the Guangdong Connector Association. The company focuses on the R&D and sales of microwave and RF signal transmission and reception products, miniature electronic connectors, and interconnection systems. Its product portfolio includes BeiDou/GPS antennas, RF adapters, connectors, and rotary encoders. Kinghelm holds multiple invention patents and software copyrights. Its manufacturing base in Luzhai County, Guangxi, is equipped with intelligent and flexible production lines. Its products are widely used in new energy vehicles, smart terminals, smart cities, the Industrial Internet, medical equipment, and commercial aerospace. Kinghelm KH-EC561V10T302 Specification VIII. Conclusion The KH-EC561V10T302 is a well-balanced, highly reliable incremental rotary encoder. Its 56 mm low-profile, slim design, 30/15 detent-to-pulse configuration, dual-phase output, and wide operating temperature range enable it to meet the requirements of human-machine interaction and parameter adjustment applications across consumer electronics, industrial control, automotive electronics, and other fields. Supported by Kinghelm's technical expertise and quality control capabilities in the microwave, RF, and electronic connector industries, the KH-EC561V10T302 provides a reliable component solution for precision control and intelligent upgrades in a wide range of electronic devices. Now officially available on LCSC, the product can be conveniently purchased for sampling and volume production, helping engineers accelerate R&D and mass-production processes. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-EC561V10T302View Product Details

Inside industrial electronics and high-reliability equipment, wire-to-board connectors are often the least conspicuous yet most critical components. Unlike a main control chip that naturally attracts attention or a power device that is built to withstand heavy loads, a connector may seem unremarkable. Yet every material choice and every pin layout directly affects the long-term performance of an entire system under vibration, temperature variations, and current surges. The KH-A42002-2X6A plug-in wire-to-board header from Kinghelm is precisely the kind of product that takes this "hidden value" to the next level. It makes no attempt to be flashy. Instead, it delivers a dependable connection solution through solid electrical performance, thoughtful structural design, and carefully selected materials. Kinghelm KH-A42002-2X6A Product Image 7A Current-Carrying Capacity: High Performance in a Compact Package Consumer-grade connectors are often designed to handle only 2A to 5A. However, when equipment needs to drive motors, heaters, or fast energy-storage conversion circuits, 7A becomes a critical threshold. Based on a 4.2mm standard pitch and a dual-row 2×6P configuration, the KH-A42002-2X6A provides a rated continuous current capacity of 7A. This figure is not accidental. It is supported by the low-resistance characteristics of its brass contacts and the oxidation resistance and stability provided by the tin-plated finish. Brass provides sufficient elastic deformation capability, helping the contacts maintain adequate contact force even after repeated mating and unmating cycles. The tin plating helps maintain a stable contact interface during long-term current-carrying and heating-cooling cycles, reducing the risk of high-resistance oxide formation and helping keep temperature rise within a safe range. Meanwhile, the 600V rated voltage takes this connector beyond the traditional scope of signal connectors, allowing it to confidently handle auxiliary power supplies, drive circuits, and other higher-voltage applications. With a single connector model, designers can accommodate both signal and power transmission, significantly simplifying material management. Temperature and Safety: Addressing Environmental Challenges Through Material Science Industrial equipment rarely operates in gentle conditions. From sub-zero outdoor equipment enclosures in northern winters to high temperatures accumulated inside enclosed control boxes in southern factories, connectors must maintain dimensional stability and insulation reliability across a wide operating temperature range of -25°C to +85°C. The KH-A42002-2X6A uses PA66 (nylon 66) as its insulating housing material. This material offers excellent creep resistance at elevated temperatures and relatively low moisture absorption. Even after repeated thermal cycling, the housing is less prone to cracking, deformation, or loosening. In terms of flame retardancy, the product achieves a UL94 V-2 rating. In the event of abnormal heating, it can effectively delay flame propagation and provide additional response time for downstream protection circuits. This careful understanding of material characteristics reflects Kinghelm’s deeper approach to long-term reliability: rather than pursuing the highest rating in every category, the product uses mature solutions that are well suited to actual operating conditions and have been validated through large-scale production. Transparent Housing Design: Improving Manufacturing and Inspection Efficiency in Small but Meaningful Ways At a time when connector appearances have become increasingly similar, the KH-A42002-2X6A adopts a transparent-colored housing. This seemingly simple design change actually reflects careful consideration of manufacturing and maintenance requirements. More efficient visual inspection: After wave soldering, the transparent housing makes it easier to observe solder wetting, solder splashes, flux residue, and other potential defects. Without relying on magnification or X-ray inspection, production quality inspectors can quickly complete first-article verification and sampling inspections. More intuitive troubleshooting: During equipment repair, engineers can inspect the terminals through the housing to check for oxidation or foreign matter, reducing the need for unnecessary desoldering and avoiding secondary damage. Clearer material management: On production lines where multiple connector models are handled, the transparent color can help operators quickly identify this particular connector, reducing the risk of material mix-ups. This detail transforms the connector from a merely "passive component" into a tool that actively assists the manufacturing process. It is a practical innovation based on listening to customers’ real-world challenges. Compact Dimensions and the Design Philosophy of a Through-Hole Structure The KH-A42002-2X6A has an overall height (Z-axis) of 12.8mm and a board-side base width (Y-axis) of 11.4mm. For a dual-row 12-pin configuration, these dimensions represent a moderate profile. The connector can meet the height constraints of most standard enclosures while leaving sufficient space underneath for routing or other components. It uses through-hole (DIP) pins rather than surface-mount technology. This is not a conservative choice, but rather a deliberate adaptation to vibration-prone environments. Once soldered, a through-hole structure forms a mechanical and metallurgical connection through the PCB, providing higher resistance to mechanical pull-out than typical SMT solder joints. This makes it particularly suitable for power modules, industrial control boards, and other applications subject to frequent mechanical shock. At the same time, the through-hole design facilitates manual soldering and rework, making it especially suitable for small-batch, high-mix production environments. Brand Heritage: Nearly Two Decades of Technical Experience Put into Practice Kinghelm, a National High-Tech Enterprise, has accumulated nearly two decades of experience in microwave/RF and connector R&D. Its technical team includes professionals from renowned institutions such as Tsinghua University and the University of Electronic Science and Technology of China. From design to mass production, the KH-A42002-2X6A has undergone rigorous material verification, salt-spray testing, and mating-cycle testing. All raw materials comply with RoHS and REACH environmental requirements. Kinghelm’s laboratory in Dongguan and intelligent manufacturing facility in Guangxi help ensure product consistency and traceability from batch to batch. This end-to-end control, from raw-material sourcing to final shipment, provides the foundation for the KH-A42002-2X6A to serve as a reliable system-level connection solution. Typical Applications: Creating More Value Through Reliable Connections With its key specifications of 7A/600V and wide operating temperature range, the KH-A42002-2X6A can be widely used in applications such as: Smart electricity meters and concentrators: The dual-row 12-pin configuration can simultaneously carry power inputs and communication signals, while the transparent housing facilitates automated optical inspection before meter shipment. Industrial variable-frequency drives and servo drives: The through-hole structure provides strong resistance to vibration, while the 7A current rating is sufficient for auxiliary power supply circuits on drive boards. The PA66 material is also well suited to the elevated temperatures inside variable-frequency drives. Portable energy-storage power supplies: The 600V voltage rating can meet the requirements of high-voltage battery-side sampling applications, while the 4.2mm pitch helps accommodate insulation and creepage-distance requirements for safe operation. Smart-home control boards: The connector is suitable for power boards in air-conditioning controllers, fresh-air ventilation systems, and similar equipment, enabling multiple reliable connections within compact spaces. Kinghelm KH-A42002-2X6A Specification Conclusion: Reliable Connections Come from Meticulous Attention to Every Detail The KH-A42002-2X6A does not pursue flashy "black technology." Instead, it focuses on the less visible aspects of a connector—material selection, structural design, and manufacturing compatibility—and puts solid effort into each of them. It addresses manufacturing challenges with its transparent housing, supports long-term stability through PA66 and tin-plating technology, and expands application possibilities with its dual high-performance ratings of 7A/600V. In an increasingly homogeneous connector market, this philosophy of "designing for the real world" is precisely where Kinghelm creates value for its customers. The next time you select a wire-to-board connector for your PCB, take a closer look at this product. It may not immediately impress you with flashy features, but it is designed to stand the test of time. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples. KH-A42002-2X6AView Product Details

As electronic devices continue to evolve toward miniaturization and higher levels of integration, connectors play a critical role as the bridge for signal and power transmission between circuit boards. Their performance and design directly affect the reliability and manufacturing efficiency of the entire system. Kinghelm has developed the KH-A2541WR-10P right-angle pin header, featuring a standard 2.54 mm pitch, single-row 10-position right-angle configuration, and reliable electrical performance. It provides a flexible and dependable interconnection solution for a wide range of applications, including consumer electronics, industrial control, automotive electronics, and more. Kinghelm KH-A2541WR-10P Product Image 1. Product Overview: Standard Pitch and Flexible Right-Angle Design The KH-A2541WR-10P is a 1×10P single-row, right-angle pin header with a standard 2.54 mm pitch. Also known as a 0.1-inch pitch, 2.54 mm is one of the most widely adopted connector pitches in the electronics industry, offering excellent compatibility with standard PCB layouts and mating connectors. With 10 pins arranged in a single row, the KH-A2541WR-10P provides sufficient connection points while maintaining a compact form factor. It is particularly well suited for compact circuit modules requiring multiple signal or power connections in parallel. One of the product's key design features is its 90-degree right-angle configuration. Unlike conventional vertical pin headers, the pins of a right-angle header extend parallel to the PCB after installation rather than perpendicular to the board surface. This design offers significant advantages in space-constrained applications. When internal device height is limited and there is insufficient clearance for a vertically mounted connector, the right-angle pin header allows connections to be routed horizontally along the PCB, effectively reducing the required vertical space and providing greater flexibility for compact electronic product design, such as slim smart devices and portable instruments. 2. Performance Specifications: Stable and Reliable for Mainstream Applications The KH-A2541WR-10P delivers solid electrical performance for a wide range of electronic applications. It features a rated current of 3 A and a rated voltage of 250 V, making it suitable for signal transmission and low-power supply applications in most electronic devices. Whether used for board-to-board signal interconnection or module power delivery, the connector provides sufficient current-carrying capability for mainstream applications. In terms of mechanical specifications, the product features a 6 mm mating pin length and a 2.54 mm insulator height. The 6 mm mating length provides sufficient insertion depth when mated with a compatible female header or socket, helping ensure secure engagement and reliable electrical contact. The 2.54 mm insulator height is consistent with the pin pitch, reflecting a standardized and uniform design. The KH-A2541WR-10P operates over a wide temperature range of -40°C to +105°C, enabling it to accommodate demanding operating environments ranging from cold outdoor conditions to high-temperature industrial applications. Whether deployed in outdoor communication equipment during harsh winters or in industrial controllers operating continuously under heavy loads, the connector is designed to maintain stable electrical connectivity across a broad temperature range. 3. Materials and Manufacturing: Quality Materials for Long-Term Reliability The KH-A2541WR-10P reflects Kinghelm's commitment to quality in both material selection and manufacturing processes. The product uses high-conductivity copper as the contact base material, combined with a corrosion-resistant plating treatment. The high-conductivity copper helps ensure efficient signal transmission with low electrical loss, while the protective plating enhances oxidation resistance and wear resistance. These characteristics are essential for maintaining low contact resistance and minimizing signal degradation over extended periods of use. The product is manufactured under strict process controls to ensure consistent dimensions and pin coplanarity from batch to batch. This is particularly important for automated assembly and wave soldering processes. Precise dimensional control can help reduce soldering defects, improve first-pass yield, and enhance overall production efficiency. The product complies with RoHS environmental requirements, helping meet environmental regulations in major global markets. The KH-A2541WR-10P is supplied in bag packaging, with a single-piece gross weight of approximately 0.775 g. Bag packaging facilitates convenient handling, inventory management, and on-demand usage, making it suitable for R&D prototyping as well as small- and medium-volume production. 4. Applications: Versatile Connectivity Across Multiple Industries With its standardized pitch, flexible right-angle configuration, and reliable electrical performance, the KH-A2541WR-10P can be used across a wide range of electronic applications: Consumer Electronics: In smartphones, tablets, smart wearables, and other products where internal space is highly constrained, the right-angle configuration helps reduce vertical clearance requirements and enables more flexible component placement within compact enclosures. Industrial Control: In PLCs (Programmable Logic Controllers), industrial instruments, variable-frequency drives, and other industrial equipment, the pin header can be used for board-to-board or module-to-module interconnection, providing stable signal transmission in demanding environments involving elevated temperatures and mechanical vibration. Automotive Electronics: Automotive infotainment systems, body control modules, navigation systems, and other automotive applications impose stringent requirements on connector temperature resistance and mechanical reliability. The KH-A2541WR-10P's wide operating temperature range and secure mechanical design make it a reliable interconnection option for such applications. Communication Equipment: In routers, base-station equipment, optical communication modules, and other communication products, the pin header can be used to interconnect power and signal boards, helping meet the demanding connectivity requirements of communication systems. Test and Measurement Instruments: In multimeters, oscilloscopes, testing equipment, and other instruments, the pin header can serve as a pluggable interconnection point between internal circuit modules, facilitating assembly, testing, maintenance, and repair. 5. Brand Strength: Kinghelm's Technical Expertise and Industry Experience The KH-A2541WR-10P is manufactured under the Kinghelm brand. Founded in 2007, Shenzhen Kinghelm Electronics Co., Ltd. is a National High-Tech Enterprise and a certified software enterprise with extensive experience in connector and antenna technologies. The company's technical team includes professionals with backgrounds from Tsinghua University and the University of Electronic Science and Technology of China (UESTC), with substantial R&D expertise in microwave and RF technologies. Kinghelm's KH product portfolio covers three major categories, including BeiDou/GPS antennas, RF adapters, electrical and data signal connectors, terminal and connector components, and customized automotive wiring harnesses. Through years of technological development and industry experience, Kinghelm has established a strong reputation in the connector and antenna sectors. Kinghelm KH-A2541WR-10P Specification 6. Conclusion With its standard 2.54 mm pitch, single-row 10-position right-angle configuration, 3 A/250 V electrical ratings, and wide operating temperature range of -40°C to +105°C, the KH-A2541WR-10P pin header provides electronics engineers with a flexible, reliable, and cost-effective interconnection solution. Whether used in space-constrained consumer electronics or demanding industrial and automotive applications, the KH-A2541WR-10P is designed to provide reliable signal and power transmission between circuit boards. For electronic equipment manufacturers seeking a combination of performance, flexibility, reliability, and cost efficiency, the KH-A2541WR-10P is a dependable connectivity solution. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.

In PCB layout design, connector selection is often overlooked compared with IC selection, yet connectors can have a direct and significant impact on the overall product structure, assembly efficiency, and long-term reliability. This is particularly true when product dimensions are constrained. Choosing the right pin-header pitch becomes a matter of trade-offs: a smaller pitch saves space, but an excessively small pitch can compromise soldering yield and mating-cycle durability. The Kinghelm KH-1.27PH180-1X10P-L7.2 vertical pin header is designed to strike a practical balance between these considerations. Kinghelm KH-1.27PH180-1X10P-L7.2 Product Image I. The Practical Constraints of Pin-Header Pitch Common pin-header pitches include 2.54 mm, 1.27 mm, 1.0 mm, and smaller pitches such as 0.5 mm. The 2.54 mm pitch is the long-established industry standard and offers generous process tolerances, but it takes up considerably more space in applications with many pins or limited PCB area. While 1.0 mm and smaller pitches provide greater compactness, they place higher demands on PCB manufacturing accuracy, assembly equipment, and repair capabilities. Their finer, more delicate pins are also more susceptible to bending during mating and unmating. At 1.27 mm, the pitch sits between these two extremes. It reduces the linear footprint by approximately half compared with 2.54 mm, while retaining a larger pin cross-section and larger pad size than 1.0 mm headers. This provides a practical balance between space efficiency and process robustness. This is also why 1.27 mm headers are widely used in communication modules, industrial control equipment, portable devices, and other applications: they support compact designs without imposing excessive manufacturing and rework requirements. II. Design Rationale Behind the Dimensions of the KH-1.27PH180-1X10P-L7.2 The header has an overall length of 7.2 mm, consisting of three sections: a 3.9 mm mating-pin length, a 1.0 mm insulator height, and a 2.3 mm termination-pin length. These dimensions are not arbitrary; they are optimized for typical application requirements. 3.9 mm mating-pin length: This is the effective insertion depth into the receptacle. Standard 1.27 mm receptacles on the market typically have an insertion depth of around 4.0 mm. A 3.9 mm mating length allows the pin tip to fully enter the working area of the receptacle's spring contact, ensuring reliable electrical contact while avoiding excessive insertion depth. 1.0 mm insulator height: The low-profile insulator helps minimize the height of the header above the PCB, making it advantageous in applications requiring close board-to-board stacking. However, the low-profile construction also means that the base has limited resistance to lateral forces, so excessive bending or prying should be avoided during installation. 2.3 mm termination-pin length: This length is suitable for PCBs approximately 1.0–1.6 mm thick. After soldering, an appropriate amount of pin remains exposed around the solder joint, making visual inspection and rework easier. Together, these dimensions determine the compatible PCB thickness range and overall stacking height. During component selection, the specifications of the mating receptacle should therefore be considered together with the pin-header dimensions. III. Electrical and Environmental Performance With a rated current of 1 A, the header is suitable for most digital signal applications, such as I²C, UART, GPIO, and low-speed SPI, as well as low-power analog signals. When multiple pins are carrying current simultaneously, appropriate derating should be applied based on the actual temperature rise, as is standard practice for connectors. The operating temperature range of −40°C to +105°C covers commercial and industrial applications. In terms of materials, the insulator should be capable of withstanding the peak temperatures associated with lead-free reflow soldering, typically below 260°C, while gold-plated contacts help improve oxidation resistance and maintain stable contact resistance. These characteristics make the header suitable for conventional indoor equipment, outdoor enclosures, and certain automotive applications outside high-temperature zones. IV. Assembly and Usage Considerations As a through-hole component, this vertical pin header is primarily intended for through-hole soldering processes. During automated wave soldering, the flux should be applied uniformly and the preheating temperature properly controlled to minimize issues such as solder balls and insufficient solder joints. For hand soldering, a temperature-controlled soldering iron is recommended, with the temperature set to approximately 330–350°C and the soldering time limited to 2–3 seconds. It is worth noting that the insulator height is only 1 mm, resulting in a relatively thin base. When mating or unmating the receptacle, excessive rocking or lateral force should therefore be avoided, as it may cause the insulator to crack or the pins to loosen from the plastic body. For applications involving frequent mating cycles or significant vibration, additional mechanical support may be considered, such as adding alignment posts on both sides of the header or using a locking receptacle. V. Application Suitability The single-row, 10-pin design of the KH-1.27PH180-1X10P-L7.2 makes it suitable for module interfaces, debugging/programming ports, and board-to-board signal connections. Typical applications include vertical connections between wireless communication modules—such as NB-IoT, LoRa, and Wi-Fi modules—and their carrier boards, as well as external expansion interfaces on industrial sensor acquisition boards. With 10 pins, the header can carry a group of parallel signals, such as 8 data lines plus 2 control lines, or serve as a convenient connection point for multiple independent signals. Where a higher pin count is required, multiple headers of the same model can be installed side by side. However, consistent pitch alignment must be maintained to prevent accumulated tolerances from making mating difficult. Kinghelm KH-1.27PH180-1X10P-L7.2 Specification VI. Conclusion The value of the Kinghelm KH-1.27PH180-1X10P-L7.2 pin header lies in its ability to strike a practical balance between miniaturization and manufacturability. A 1.27 mm pitch is neither the most compact nor the most spacious option, but it is precisely this middle ground that makes it an attractive choice for many electronic design projects seeking a good balance of cost, reliability, and space efficiency. Its dimensional specifications, electrical characteristics, and environmental performance are all oriented toward meeting mainstream engineering requirements rather than pursuing extreme specifications. When selecting this header, engineers should evaluate the actual PCB thickness, mating-receptacle specifications, mating frequency, and operating temperature as a complete system. If the application conditions are consistent with the typical scenarios described above, this product can provide a stable and cost-effective interconnection solution. About Kinghelm Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.