The 75S-348 from JFW Industries is a RF Switch with Frequency DC to 2150 MHz, Insertion Loss 0.25 to 0.75 dB, Isolation 50 to 70 dB, Power 20 dBm, Power 0.1 W. Tags: Module with Connectors, Electro-Mechanical. More details for 75S-348 can be seen below.