The S1R3740-50T100 from Clear Microwave, Inc is a RF Switch with Frequency 37 to 40 GHz, Insertion Loss 3.8 dB, Isolation 50 dB, Supply Voltage 5 V, Supply Current 25 mA. Tags: Module with Connectors, Solid State. More details for S1R3740-50T100 can be seen below.