The 75S-374 from JFW Industries is a RF Switch with Frequency 5 to 2150 MHz, Insertion Loss 2.0 to 2.5 dB, Isolation 65 to 78 dB, Power 10 to 20 dBm, Power 0.01 to 0.1 W. Tags: Module with Connectors, Solid State. More details for 75S-374 can be seen below.