The 172D Series from Teledyne Relays is a RF Relay with Frequency 10 MHz to 1 GHz, Coil Voltage 3.0 to 32.0 V, Voltage 2.25 to 18.0 V (Pick-up Voltage), Power 360 to 440 mW, Resistance 39 to 1600 Ohms. Tags: Centigrid. More details for 172D Series can be seen below.