KH-A42002-2X5A Wire-to-Board Connector: 4.2mm Pitch for Reliable Connections and Stable Power Transmission

As electronic devices continue to evolve toward greater intelligence and compactness, connectors have become an essential part of electronic systems, providing power transmission, signal connectivity, and module interconnection. Among them, wire-to-board connectors are widely used in consumer electronics, industrial equipment, power systems, and household appliances due to their easy installation, reliable connection, and broad application range.

Kinghelm has introduced the KH-A42002-2X5A wire-to-board connector, featuring a 2×5P pin configuration and a 4.2mm pitch. With a rated current capacity of up to 7A, it is suitable for a variety of power and signal connection applications, providing equipment with a stable and reliable connection solution.

Kinghelm KH-A42002-2X5A Product Image

High-Reliability Design for a Wide Range of Applications

The KH-A42002-2X5A is a through-hole wire-to-board connector featuring a 2×5P pin configuration with a total of 10 contact terminals. This design supports multiple power and signal connections simultaneously. With a standard 4.2mm pitch, the connector balances high-current carrying capability with connection stability, making it suitable for applications including power modules, LED lighting, household appliances, industrial control equipment, and new energy systems.

Key Specifications

• Brand: Kinghelm
• Model: KH-A42002-2X5A
• Type: Wire-to-board connector
• Pin Configuration: 2×5P
• Pitch: 4.2mm
• Mounting Type: Through-hole (DIP)
• Package: Through-hole, P=4.2mm
• Rated Current: 7A
• Rated Voltage: 600V
• Operating Temperature: -25°C to +85°C
• Flammability Rating: UL94V-2
• Color: Transparent
• Packaging: Bag

The 7A rated current enables the connector to meet the connection requirements of relatively high-power equipment, while the 600V rated voltage further expands its potential applications in industrial and power-related systems.

Advantages of the 4.2mm Pitch

In wire-to-board connectors, pitch is an important parameter that affects electrical and mechanical performance. The KH-A42002-2X5A adopts a 4.2mm pitch. Compared with smaller-pitch connectors such as 2.0mm and 2.54mm products, its larger pitch is designed to support higher current capacity while providing enhanced mechanical strength.

The relatively large contact area of the terminals helps reduce contact resistance and heat generation, improving connection reliability. At the same time, the 4.2mm pitch makes mating and assembly easier, while providing a more secure connection for equipment operating under vibration or over extended periods.

The transparent housing is made from material meeting the UL94V-2 flammability rating, providing electrical insulation while enhancing safety and durability.

How to Choose the Right Pitch for Wire-to-Board Connectors

In practical product design, engineers often need to determine which wire-to-board connector pitch is most suitable for their application.

In general, connector pitch should be selected based on a combination of factors such as current requirements, available space, and operating environment.

For compact devices such as smart wearable products, small sensors, and portable electronic equipment, smaller-pitch connectors such as 1.25mm and 2.0mm are commonly used to save PCB space.

For general consumer electronics, control boards, and household appliances, connectors with 2.54mm and 3.96mm pitches are widely used, providing a balance between space efficiency and current-carrying requirements.

For higher-power applications such as power modules, industrial control systems, motor drives, new energy equipment, and LED power systems, 4.2mm or larger pitch connectors can offer advantages. A larger pitch generally allows for more robust terminal structures and greater spacing between conductive elements, which can support higher current and insulation requirements.

The KH-A42002-2X5A is designed for medium- to high-current applications. Its 4.2mm pitch, 7A rated current, and 600V rated voltage provide a combination of current-carrying capability, connection stability, and electrical safety for a variety of applications.

Kinghelm KH-A42002-2X5A Specification

Through-Hole Design for Enhanced Mechanical Reliability

Compared with surface-mount connectors, through-hole (DIP) connectors generally provide stronger mechanical anchoring. The KH-A42002-2X5A uses a through-hole mounting design. Once soldered onto the PCB, the connector forms a robust mechanical connection, making it particularly suitable for equipment exposed to vibration or long-term operation.

In industrial automation equipment, power control systems, and large household appliances, continuous operation can generate vibration and temperature fluctuations. If a connector is not mechanically secure, contact problems may occur over time. The through-hole structure helps improve resistance to mechanical stress and vibration, contributing to greater overall equipment reliability.

Kinghelm Quality Assurance

Kinghelm is a Chinese electronics brand specializing in connectors, RF components, antennas, and related electronic products. The KH-A42002-2X5A is manufactured in accordance with relevant industry standards and is designed to provide good consistency and stable performance for high-volume production applications.

As electronic equipment continues to evolve toward higher performance and greater reliability, connectors are playing an increasingly important role. With its 4.2mm pitch, 2×5P configuration, 7A current-carrying capability, and 600V rated voltage, the Kinghelm KH-A42002-2X5A provides a reliable connection solution for power and industrial applications.

For equipment requiring a combination of high-current capability, connection stability, and electrical safety, the KH-A42002-2X5A is a practical wire-to-board connector option.

About Kinghelm

Kinghelm specializes in connectors, antennas, RF products, and a wide range of electronic components, providing stable and convenient connection and transmission solutions for different types of electronic equipment.

Its product portfolio includes common Type-C, USB, HDMI, and FPC connectors, as well as SMA, IPEX, MCX, and RF coaxial connectors. The company also offers pin headers, terminals, headphone jacks, DC sockets, tactile switches, and other electronic components, providing customers with a broad selection of connection products.

In wireless communications and smart-device applications, Kinghelm also offers GPS antennas, Wi-Fi antennas, BeiDou antennas, 4G antennas, internal antennas, and ceramic antennas. Its product range further covers automotive wiring harnesses, adapter cables, RF cables, sensors, millimeter-wave products, and related components.

These products serve a variety of applications, including communications equipment, automotive electronics, consumer electronics, smart terminals, and industrial equipment.

From a small connector to a wireless communication antenna inside an electronic device, Kinghelm is committed to providing practical and reliable products that help customers solve real-world connection and transmission challenges.

For more information about Type-C, SMA, IPEX, RF connectors, antennas, and other electronic components, please visit the Kinghelm official website:

www.kinghelm.net

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