Coaxial Switch Receptacle for RF Path Routing
The Hirose MS-147(06) is a single-port coaxial switch receptacle, female socket, designed for RF signal routing where a switched path is needed without an external relay. It belongs to the MS-147 series and uses a 4.8mm plug diameter interface — the same physical footprint as the MS-156HF series but with a push-pull fastening instead of snap-on. The internal switch feature means the connector can open or close a signal path internally when mated or unmated, eliminating a separate RF switch component. Rated for 50 Ohms impedance and 6 GHz maximum frequency, it covers common wireless and instrumentation bands up to the lower microwave range.
RF Performance: 0.8dB Insertion Loss at 6 GHz
Insertion loss is specified at 0.8dB across the band up to 6 GHz. For a switched coaxial connector, this loss includes the internal switch contacts — the 0.8dB figure is the total through-path loss when the switch is in the closed (mated) state. The surface mount termination with solder shield termination provides a controlled ground return path, critical for maintaining impedance through the board launch.
12000 Mating Cycles vs. 100-Cycle Peers
The MS-147(06) is rated for 12000 mating cycles, compared to 100 cycles for the MS-156HF series. The MS-147(06) uses a push-pull fastening; the MS-156HF uses snap-on. The insertion loss of the MS-147(06) is 0.8dB versus 0.15dB for the MS-156HF — the higher loss is the trade-off for the internal switch and the higher cycle life.