Coaxial Switch Receptacle for RF Signal Routing
The Hirose MS-162A(01) is a 50 Ohm coaxial switch receptacle in the MS-162A series, designed as a surface-mount, single-port, female socket with a 4mm plug diameter. It integrates an internal switch function, making it suited for RF signal routing where the connector body itself selects between signal paths — common in portable test equipment, wireless modules, and antenna switching circuits where board space is tight.
Frequency and Impedance: 50 Ohm at 10 GHz
With a 50 Ohm characteristic impedance and a maximum frequency of 10 GHz, the MS-162A(01) covers the L, S, and C bands plus the lower X-band — suitable for Wi-Fi, Bluetooth, GPS, cellular (up to 5G sub-6 GHz), and many instrumentation and radar applications. The surface-mount shield termination and solder contact termination keep the RF launch consistent with the PCB trace impedance when the footprint is designed per the manufacturer's recommended land pattern. The internal switch feature adds a DC path that can be used for antenna selection or signal routing without an external relay.
Engineers evaluating a new design should consider the active members of the MS-162 series or a functionally equivalent coaxial switch connector from Hirose's current catalog, verifying the footprint, impedance, and frequency match before substituting.