The CRT-33S series-Latching from Teledyne Relays is a RF Switch with Frequency DC to 18 GHz/DC to 22 GHz, Insertion Loss 0.2 to 0.6 dB, Isolation 50 to 70 dB, Actuator Voltage 12 to 28 V, Actuator Current 200 to 420 mA. Tags: Module with Connectors, Electro-Mechanical. More details for CRT-33S series-Latching can be seen below.