The Hirose MS-162 is a coaxial switch receptacle, female socket, designed for a 4mm plug diameter. It belongs to the MS series of RF connectors from Hirose, which are known for compact, high-cycle coaxial switching applications. This surface-mount part carries an internal switch feature, allowing signal routing without an external relay — the switch actuates when the mating plug is inserted, breaking or making the internal path. Rated for DC to 10 GHz with a 50 Ohm impedance, it targets applications where a small footprint, automated SMT assembly, and repeated connect/disconnect cycles are required, such as test equipment, antenna switching modules, or handheld RF instruments.
Key RF Performance and Mechanical Ratings
The 50 Ohm impedance is standard for RF systems, so the connector matches typical 50 Ohm transmission lines without a discontinuity. The snap-on fastening type provides quick, tool-less mating while maintaining consistent contact force. Mating cycle life is rated at 12000 cycles.
Construction and Termination Details
Shield and contact termination are both solder — the shield ring solders to the PCB ground plane, and the centre contact solders to the signal trace. The surface-mount package is supplied in Tape & Reel for automated pick-and-place.