UHF Female (SO-239) 4-Hole Flange Panel Mount Coaxial Connector

SO239 UHF female coaxial panel connector for reliable RF installations

The SO239 UHF female coaxial panel connector with 4-hole flange is designed to create solid, accessible and mechanically stable connection points on chassis, metal enclosures, radio panels and RF equipment. It is a suitable choice when the application requires a robust interface, easy integration and compatibility with UHF configurations widely used across radio, technical and laboratory environments.

The panel-mount design with 4-hole flange provides secure fastening to the enclosure, helping improve connection stability even under repeated mating cycles. The solder cup termination makes this connector practical for internal wiring, custom assemblies and tailored integration in RF equipment, bench units, antenna systems and radio devices.

Why choose an SO239 panel connector with 4-hole flange

This type of connector is often selected when a coaxial connection needs to be brought outside the device in a clean, reliable and professional way. It is suitable for front and rear panels, shielded enclosures, transceiver interfaces, CB systems, antenna links, RF test benches and retrofit work on existing equipment. The SO239 / UHF female interface remains a common choice in many applications where mechanical robustness, familiarity with the standard and ease of installation are important.

Typical applications

This UHF female panel connector is used in radio equipment, low-frequency communication systems, chassis interfaces, electronic instrumentation, antenna connections and RF assemblies intended for maintenance, replacement or new integration. Common use cases also include projects in the ham radio world, where the SO239 interface remains widely recognized and used for dependable panel-mounted coaxial connections.

Key features for integration and reliability

• SO239 UHF female interface for RF, radio and traditional coaxial applications
• Panel mount with 4-hole flange for secure chassis installation
• Solder cup termination suitable for internal wiring and custom assemblies
• Straight configuration compatible with a wide range of mechanical layouts
• Robust metal construction for reliable mechanical stability in operation
• Well suited for radio panels, shielded boxes and RF interface points on equipment
• Consistent performance for applications up to 300 MHz

A practical choice for production, retrofit and custom assembly

Thanks to the combination of metal body construction, flange mounting and solder termination, this connector is suitable for both series production and custom work. It can be a good option for equipment manufacturers, system integrators, technical labs, installers and maintenance teams looking for an SO239 panel connector that is easy to install and aligned with traditional RF applications, radio systems and chassis integration needs.

Essential technical data

The connector features a UHF interface, female gender, straight geometry, panel mounting with 4-hole flange and solder cup termination. The specified frequency range is DC-300 MHz with VSWR ≤ 1.30. Construction includes a nickel-plated brass body, gold-finished bronze center contact and PTFE insulator. The connector is also RoHS and REACH compliant.