KH-IPEX4-SMAKWE5-RG1.37-B120H RF Cable Assembly: 4th Generation IPEX Connector Design for Compact Wireless Modules

In wireless communication equipment, IoT terminals, smart devices, and various compact RF modules, the connection between the antenna and the mainboard is an important part of achieving reliable wireless communication. As electronic products continue to develop toward miniaturization, lightweight construction, and higher integration, the available internal space is becoming increasingly limited. As a result, higher requirements are being placed on the size, connector type, cable length, and mounting structure of RF connectors and RF cable assemblies.

The Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H is an IPEX-to-SMA RF Cable Assembly featuring a 4th generation IPEX connector and a gold-plated four-leg half-thread SMA female connector. It is equipped with RG1.37 black RF cable and has a total cable length of 120 mm. The product is suitable for connections between wireless modules and external antennas and can be used in Wi-Fi, Bluetooth, GNSS, IoT, and other RF communication applications.

Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H Product Image

Basic Product Specifications

Brand: Kinghelm
Part Number: KH-IPEX4-SMAKWE5-RG1.37-B120H
Product Type: RF Cable Assembly
Connector Configuration: IPEX to SMA
IPEX Generation: 4th Generation
SMA Connector: Gold-Plated Four-Leg Half-Thread SMA Female
Structural Feature: Without Groove
Thread Length: 5 mm
Cable Type: RG1.37 Black RF Cable
Cable Length: 120 mm (12 cm)
Rated Voltage: 300 V
Packaging: Bag Packaging
Gross Weight: Approximately 4.8 g

4th Generation IPEX Connector Design for Compact Wireless Modules

The KH-IPEX4-SMAKWE5-RG1.37-B120H features a 4th generation IPEX connector and is suitable for compact wireless communication modules and electronic devices with limited internal space. As smart terminals and IoT devices continue to become smaller, conventional RF connection methods with larger dimensions may occupy more space inside certain devices. Compact IPEX connectors can better meet the requirements of space-efficient electronic designs.

The 4th generation IPEX connector is commonly used between wireless communication modules and RF cable assemblies. By using the cable assembly, the RF interface on the mainboard can be extended to another location, making it easier to connect an external antenna. For products that require the mainboard, wireless module, and antenna to be arranged within limited internal space, selecting the appropriate connector type and cable length is particularly important.

By converting a 4th generation IPEX interface to an SMA interface, this product can meet the connection requirements between different interface types. It allows compact wireless modules inside a device to connect to compatible external antennas through a standardized SMA interface.

IPEX-to-SMA Configuration for Wireless Modules and External Antennas

The product features an IPEX-to-SMA connector configuration. One end connects to a compatible wireless module equipped with a 4th generation IPEX interface, while the other end is an SMA female connector that can be used with compatible external antennas or RF components.

This connector configuration provides greater flexibility for antenna installation. In some devices, the wireless module is installed inside the mainboard assembly, while the antenna needs to be mounted on the device enclosure, panel, or another suitable location. With a 120 mm RF cable assembly, the connection can be routed between the mainboard and the antenna installation point.

For wireless equipment manufacturers and electronics engineers, factors such as connector compatibility, available installation space, cable length, and internal device layout should be considered during product design. The KH-IPEX4-SMAKWE5-RG1.37-B120H uses a commonly required IPEX-to-SMA connection configuration and can be used in various wireless communication products requiring antenna connections.

Gold-Plated Four-Leg Half-Thread SMA Female Connector

One end of the product uses a gold-plated four-leg half-thread SMA female connector. The connector structure is designed to provide stable mounting for applicable installations. SMA connectors are widely used in RF communication and wireless equipment and can be used for connections between antennas, wireless modules, and other RF components.

The product uses a four-leg mounting structure, which helps support the connector during installation. Its half-thread design is suitable for compatible panel-mounting applications. The connector is designed without a groove and features a thread length of 5 mm, allowing users to select the product according to the thickness of the device enclosure and the specific mounting structure.

The connector uses gold plating to support reliable electrical contact and improve corrosion resistance at the connection point. For wireless communication equipment intended for long-term operation, a stable connector structure is an important consideration.

RG1.37 Black RF Cable for Internal Device Routing

The KH-IPEX4-SMAKWE5-RG1.37-B120H uses RG1.37 black RF cable with a total length of 120 mm, or 12 cm.

For electronic devices, the length of an RF cable assembly should be selected according to the available internal space. If the cable is too short, it may not provide sufficient distance between the mainboard and the antenna mounting position. If the cable is too long, it may increase the complexity of internal cable routing. Therefore, a 120 mm cable length can provide practical installation and routing flexibility for a range of devices.

RG1.37 RF cable offers flexibility suitable for routing inside relatively compact electronic products. During installation, the cable can be arranged according to the location of the mainboard, the enclosure structure, and the antenna mounting position.

The black cable design provides a clean appearance and is suitable for various internal electronic device environments while also helping with cable organization and identification.

120 mm Cable Length for Flexible Installation and Layout

The RF Cable Assembly has a total length of 120 mm. For the internal layout of wireless communication equipment, selecting an appropriate cable length can improve installation flexibility.

For example, in some wireless communication terminals, the IPEX connector on the mainboard may be located inside the device, while the SMA connector needs to be mounted on the equipment enclosure or panel. In this case, the 120 mm RF cable assembly can provide a practical connection path between the two locations.

An appropriate cable length can also support more efficient internal cable management. When selecting an RF Cable Assembly, users should consider the actual dimensions of the equipment, mainboard layout, and antenna installation location to ensure that the connector configuration, cable length, and mounting structure match the product design requirements.

300 V Rated Voltage for Various Electronic Equipment Applications

The KH-IPEX4-SMAKWE5-RG1.37-B120H has a rated voltage of 300 V and can meet relevant connection requirements in compatible electronic equipment applications.

The overall assembly consists of an IPEX connector, an SMA connector, and RG1.37 RF cable, providing a connection between a wireless module and an external antenna. Its lightweight construction also makes it suitable for certain devices where size and weight are important considerations.

The product is supplied in bag packaging and has an approximate gross weight of 4.8 g, making it convenient for transportation, storage, and material management during manufacturing processes.

Suitable for Various Wireless Communication Applications

With its combination of a 4th generation IPEX connector and an SMA connector, the KH-IPEX4-SMAKWE5-RG1.37-B120H can be used in a variety of wireless communication and RF equipment applications, including:

• Wi-Fi wireless communication equipment
• Bluetooth modules and smart terminals
• IoT communication devices
• GNSS/GPS positioning devices
• Wireless routers and networking equipment
• Industrial wireless control terminals
• Smart home communication devices
• 4G/5G wireless communication modules
• Various external antenna connection applications
• Compact RF communication modules

In practical applications, users should confirm the IPEX connector specification according to the interface used by the equipment and select the product based on the SMA mounting method, thread length, and required cable length.

Key Product Features

The Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H RF Cable Assembly offers the following features:

First, it uses a 4th generation IPEX connector. It is suitable for compatible compact wireless communication modules and can meet the connection requirements of space-efficient electronic devices.

Second, it features an IPEX-to-SMA connector configuration. This structure provides a convenient connection between an internal wireless module and an external antenna.

Third, it uses a gold-plated four-leg half-thread SMA female connector. The connector features a stable mounting structure and a 5 mm thread length.

Fourth, it uses RG1.37 black RF cable. The cable offers flexibility suitable for routing inside electronic devices.

Fifth, the cable length is 120 mm. This provides practical installation space between the internal mainboard and the antenna connection point.

Sixth, the product features a lightweight structure. With an approximate gross weight of 4.8 g, it is suitable for various compact and lightweight electronic devices.

Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H Specification

Conclusion

In the design and manufacturing of wireless communication equipment, an RF Cable Assembly may be a relatively small electronic component, but its connector specifications, cable length, and connector mounting structure can all affect the antenna layout and overall equipment design.

The Kinghelm KH-IPEX4-SMAKWE5-RG1.37-B120H combines a 4th generation IPEX connector, a gold-plated four-leg half-thread SMA female connector, and RG1.37 black RF cable. It features a 120 mm cable length, a groove-free connector structure, and a 5 mm thread length.

For equipment that requires a compact wireless module to be connected to an external antenna, this model can be used as a 4th generation IPEX-to-SMA RF Cable Assembly. During product selection and installation, users should confirm the wireless module interface specification, available internal space, antenna installation location, and connector mounting dimensions to ensure proper compatibility with the intended application.

About Kinghelm

Kinghelm specializes in electronic components, including electronic connectors, RF connectivity components, cable assemblies, switches, sockets, and related interconnection products. The company continues to develop products for communication connectivity, signal transmission, and electronic interconnection, providing a wide range of options for consumer electronics, IoT, automotive electronics, smart devices, and industrial applications. Kinghelm’s product range covers Type-C, SMA, IPEX, MCX, HDMI connectors, FPC connectors, USB connectors, and waterproof USB connectors, as well as automotive wiring harnesses, adapter cables, pin headers, terminals, and RF cables. For switching applications, Kinghelm offers detection switches, toggle switches, push button switches, tactile switches, multifunction switches, illuminated switches, DIP switches, and rocker switches. The product portfolio also includes headphone jacks and DC sockets, supporting various requirements for signal transmission, power connection, interface expansion, and control functions across different electronic devices.

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