Choosing the right connector is critical in wireless communication and RF signal transmission. The Kinghelm KH-SMAKW-11-W is a high-reliability, high-performance 11-thread 90° right-angle SMA female connector with a female center pin, specially designed for tight spaces inside devices, antenna interfaces, and high-frequency signal applications. It excels not only in electrical performance but also in structural design, addressing real-world installation challenges and offering communication engineers a cost-effective, stable, and reliable connection solution.

Kinghelm KH-SMAKW-11-W Product Image

In applications such as IoT, automotive communication, security monitoring, and GPS modules, RF connectors often must provide reliable high-frequency transmission in confined spaces. The KH-SMAKW-11-W SMA connector features a 90° right-angle design that, compared to traditional straight connectors, facilitates easier cable routing on compact PCBs or within enclosed metal housings. This reduces bending losses and mechanical interference. Its side-exit structure is ideal for installation at chassis edges or cable-parallel layouts, minimizing vertical space usage.

This model uses a standard 11-thread interface with wide compatibility, fitting mainstream SMA male or female devices on the market, making it suitable for standardized and modular production needs. The connector’s secure threading ensures high mechanical durability, maintaining stable connections even in high-vibration environments such as automotive or drone applications. The built-in female center pin ensures excellent contact, effectively lowering contact resistance and supporting low-loss signal transmission across 0 to 3 GHz frequencies.

Technically, the KH-SMAKW-11-W SMA connector is designed with a 50Ω impedance match. When paired with appropriate transmission lines, it minimizes signal reflection and enhances overall transmission efficiency and signal-to-noise ratio. Its Voltage Standing Wave Ratio (VSWR) is ≤1.5, indicating excellent impedance matching performance, suitable for high-frequency systems with strict VSWR requirements such as RFID, Wi-Fi, and Bluetooth modules. The wide operating temperature range (-55°C to +155°C) ensures reliable operation in harsh industrial environments, unaffected by cold northern climates or high-temperature equipment rooms.

Installation is highly flexible with the KH-SMAKW-11-W’s crimp-style cable termination, complete with compatible accessories. Users can quickly install using different SMA crimp tools based on cable diameter—no soldering required—saving assembly time. Compared to PCB-mounted SMA connectors, this product is better suited for cable jumpers, enabling fast assembly with finished antennas or custom short cables, making replacement and maintenance easier.

Kinghelm KH-SMAKW-11-W Specification

If you need an SMA connector optimized for tight spaces with outstanding frequency response and robust mechanical design, the Kinghelm KH-SMAKW-11-W is a top choice. Combining rational structure, stable performance, and ease of installation and maintenance, it delivers superior signal integrity and strong interference resistance for end products. Among many SMA connectors, its right-angle design and 11-thread universal interface strike an excellent balance between cost and compatibility, ideal for bulk engineering applications and brand customization.

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-SMAKW-11-WTo Product Page