KH-IPEX-SMAKWE5-RG0.81-B50H RF Cable Assembly: A Reliable Connectivity Solution for Compact Devices

As wireless communication technology continues to develop, reliable RF connectivity has become an important part of modern electronic equipment. From Wi-Fi and Bluetooth devices to GNSS modules, IoT terminals, and industrial wireless systems, a high-quality RF cable assembly helps establish a stable connection between the internal RF module and the external antenna.

The Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H is a compact RF cable assembly designed with a 1st Generation IPEX connector on one end and a gold-plated four-leg half-thread SMA female connector on the other end. The cable uses RG0.81 black RF coaxial cable with a total length of 50 mm (5 cm), making it suitable for compact electronic devices with limited internal installation space.

Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H Product Image

Product Overview

The KH-IPEX-SMAKWE5-RG0.81-B50H is manufactured under the Kinghelm (Kinghelm Electronics) brand and belongs to the RF cable assembly product category.

The cable is designed to provide a practical connection between small RF modules equipped with a 1st Generation IPEX connector and external antennas or RF equipment using an SMA interface.

Basic Product Specifications

• Brand: Kinghelm
• Model: KH-IPEX-SMAKWE5-RG0.81-B50H
• Product Category: RF Cable Assembly
• Connector Type: IPEX to SMA
• IPEX Generation: 1st Generation
• SMA Connector: Gold-plated four-leg half-thread SMA female
• SMA Structure: Without groove
• Thread Length: 5 mm
• Cable Type: RG0.81 black RF cable
• Cable Length: 50 mm / 5 cm
• Rated Voltage: 300V
• Packaging: Bag packaging
• Gross Weight: Approximately 4.33 g

Gold-Plated Four-Leg SMA Female Connector

One of the key features of the KH-IPEX-SMAKWE5-RG0.81-B50H is its gold-plated four-leg SMA female connector.

The SMA connector is widely used in RF and microwave applications because of its compact size, convenient threaded connection, and suitability for many wireless communication systems. It is commonly found in antennas, wireless modules, communication equipment, testing devices, and RF systems.

This product uses a four-leg mounting structure, which helps provide stable mechanical support when the connector is installed on an enclosure, panel, or other suitable structure. The connector features a half-thread design, with a 5 mm thread length, and is manufactured without a groove, making it suitable for applications requiring this specific mechanical configuration.

The gold-plated contact surface is designed to provide reliable electrical contact and improved resistance to oxidation and corrosion. For electronic devices that require long-term operation, stable connector contact is an important factor in maintaining reliable RF signal transmission.

1st Generation IPEX Connector for Compact RF Modules

The other end of the cable assembly uses a 1st Generation IPEX connector.

IPEX connectors are widely used in compact wireless electronic devices because of their small size and lightweight structure. They are commonly used for connecting antennas to Wi-Fi modules, Bluetooth modules, GNSS receivers, IoT communication modules, and other miniature RF devices.

As modern electronic products continue to become smaller and more compact, internal installation space is often limited. Small RF connectors such as IPEX provide engineers with greater flexibility when designing antenna connections inside compact devices.

The KH-IPEX-SMAKWE5-RG0.81-B50H provides a convenient transition from an internal IPEX 1st Generation RF interface to an external SMA antenna interface. This configuration allows the internal RF module to connect with an external antenna through a standard threaded SMA connection.

Before selecting the product, users should confirm that their wireless module uses a compatible 1st Generation IPEX connector.

RG0.81 Black RF Cable for Flexible Internal Installation

The KH-IPEX-SMAKWE5-RG0.81-B50H uses RG0.81 black RF coaxial cable.

For compact wireless devices, cable diameter and flexibility can have a significant impact on internal layout and assembly. A smaller RF cable can help engineers route the cable more easily inside devices where installation space is limited.

The RG0.81 cable used in this assembly is suitable for compact RF connection applications. It allows the cable assembly to be integrated into small electronic products while helping reduce unnecessary space consumption.

The total cable length is 50 mm, or 5 cm. This relatively short length is suitable for applications where the RF module and the external SMA connector are located close to each other.

A properly selected cable length can help simplify internal cable routing and reduce excess cable inside the enclosure. The 50 mm design is particularly suitable for compact wireless devices, embedded communication systems, and other applications with limited internal space.

Rated Voltage of 300V

The KH-IPEX-SMAKWE5-RG0.81-B50H has a rated voltage of 300V.

Electrical parameters are important considerations when selecting RF cable assemblies. In addition to connector compatibility, cable type, and mechanical dimensions, users should also consider whether the electrical specifications meet the requirements of their specific equipment.

The rated voltage specification provides an important reference for product selection and system design. Users should always evaluate the complete electrical environment and application requirements before installation.

Lightweight and Compact Design

With a gross weight of approximately 4.33 grams, the KH-IPEX-SMAKWE5-RG0.81-B50H is a lightweight RF connection solution.

Lightweight and compact RF cable assemblies are especially useful for electronic products where space and weight are important considerations. Examples include portable devices, embedded systems, smart terminals, and compact IoT products.

The combination of a small IPEX connector, a compact RG0.81 cable, and an SMA female connector provides a practical solution for connecting an internal RF module to an external antenna.

Typical Applications

The Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H RF cable assembly can be used in a variety of wireless communication applications, including:

• Wi-Fi communication devices
• Bluetooth modules and terminals
• GNSS and GPS positioning devices
• IoT communication equipment
• Wireless routers and gateways
• Industrial wireless control systems
• Smart home devices
• Wireless data transmission equipment
• Embedded RF modules
• Compact communication terminals
• External antenna connection systems

In many of these applications, the internal wireless module uses a miniature RF connector while the external antenna uses a standard SMA interface. An IPEX-to-SMA RF cable assembly provides a convenient solution for connecting these different interfaces.

Important Selection Considerations

When selecting the KH-IPEX-SMAKWE5-RG0.81-B50H, several factors should be confirmed.

First, users should verify that their device uses a 1st Generation IPEX connector. Different connector generations may have different mechanical structures and dimensions.

Second, the installation structure of the SMA connector should be checked carefully. This model features a gold-plated four-leg half-thread SMA female connector without a groove, with a 5 mm thread length.

Third, users should confirm whether the 50 mm cable length is suitable for the distance between the internal RF module and the external antenna connector.

Finally, the overall RF system design, antenna type, operating frequency, and mechanical installation requirements should be considered to ensure proper compatibility.

Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H Specification

Conclusion

The Kinghelm KH-IPEX-SMAKWE5-RG0.81-B50H is a compact IPEX-to-SMA RF cable assembly designed for wireless communication and antenna connection applications.

Featuring a 1st Generation IPEX connector, a gold-plated four-leg half-thread SMA female connector, a 5 mm thread length, and RG0.81 black RF coaxial cable, this product provides a practical connection solution for compact electronic devices. The cable length of 50 mm (5 cm) and rated voltage of 300V make it suitable for a range of wireless communication systems and embedded electronic applications.

The product can be used in Wi-Fi, Bluetooth, GNSS, GPS, IoT, industrial wireless communication, and other RF applications that require a connection between an internal miniature RF interface and an external SMA antenna.

For the best application results, users should confirm connector compatibility, installation dimensions, cable length requirements, and overall RF system specifications before product selection.

About Kinghelm

Kinghelm is a national high-tech enterprise specializing in electronic connectivity and signal transmission, integrating R&D, manufacturing, and sales. Its product range includes Type-C, USB, HDMI, FPC, RF connectors, SMA, IPEX, MCX connectors, RF cable assemblies, switches, buttons, automotive wiring harnesses, and customized cable solutions.

Kinghelm products are widely used in consumer electronics, automotive electronics, industrial automation, wireless communication, and smart devices. With comprehensive product solutions and reliable quality, Kinghelm provides one-stop electronic interconnection solutions for customers worldwide.

Kinghelm — Connecting the World.

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