The ECS-37S series from Teledyne Relays is a RF Switch with Frequency DC to 26.5 GHz, Insertion Loss 0.2 to 0.8 dB, Isolation 60 to 80 dB, Supply Voltage 0 to 5.5 V, Actuator Voltage 12 to 24 V. Tags: Module with Connectors, Electro-Mechanical. More details for ECS-37S series can be seen below.