SMB Jacks (Female) Guide: Types, Structure, and Uses Explained

The SMB series utilizes a tool-free, quick snap-on (push-on) coupling mechanism, enabling fast connection and rapid disconnection.

An SMB Jack features a male center contact pin. To create a secure connection, it mates with an SMB Plug, which features a female center contact socket. Users should push the connector straight in to connect and pull it straight out to disconnect without twisting, ensuring stable signal transmission and preserving the mechanical integrity of the mating interface.

Tyclon offers bulkhead configurations for its SMB Jack (female) series, designed for panel-mount or bulkhead-mount applications. To ensure consistent performance, these connectors are engineered to terminate securely to specified coaxial cables, supporting stable signal transmission through panel bulkheads.

Bulkhead Jacks: This configuration is designed to secure directly to a panel or chassis wall. It allows coaxial cables to pass through the enclosure bulkhead, facilitating external system connections while maintaining a secure ground and protecting internal printed circuit board assemblies.

Because of their compact size, secure panel-mount design, and convenient snap-on coupling, Tyclon SMB Jacks are widely used in high-density bulkhead applications:

・Panel-Mount Interfaces: Providing secure, external-to-internal coaxial connections on the chassis or enclosure walls of communication equipment.

・Wireless Infrastructure Base Stations: Enabling space-efficient panel routing for radio frequency signals between internal modules and external antennas.

・Test and Measurement Instrument Panels: Serving as compact front-panel or rear-panel interfaces on diagnostic devices for rapid, tool-free connection.

・Industrial Control Enclosures: Facilitating secure signal transmission through bulkheads in densely packed automation and monitoring systems.

SMB Jacks (female bulkhead type) are used for secure panel-mounted cable termination and are installed at the end of a coaxial cable to mate with an SMB Plug. To ensure consistent electrical performance, these jacks must be terminated securely using the specified method for the connector design.


1. Cable Compatibility Check
The SMB Jack must be selected to match the specified coaxial cable type and diameter, such as RG-174, RG-316, or RD-316 double-shielded cables. Using incompatible cables can compromise the mechanical assembly and degrade electrical performance.

2. Connection of the Center Contact and the Conductor
The cable inner conductor (core wire) is connected to the male center contact pin of the SMB Jack. Depending on the specific connector configuration, this is typically completed by soldering or crimping to establish low contact resistance and reliable high-frequency transmission.

3. Connection of the Connector Body and the Outer Shield
The cable outer shield (braid) and jacket are secured to the connector body, and the bulkhead jack is secured to the panel using a nut. This mechanism ensures proper grounding, secure mechanical retention on the chassis, and protection against cable strain.

For details on compatible cables and attachment specifications, please refer to the product details on each Tyclon product page.