The CRS-33S series-Failsafe from Teledyne Relays is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.2 to 0.5 dB, Isolation 60 to 70 dB, Actuator Voltage 12 to 28 V, Actuator Current 200 to 420 mA. Tags: Module with Connectors, Electro-Mechanical. More details for CRS-33S series-Failsafe can be seen below.