Hongfa HFD23 Series Subminiature Signal Relays 2A SPDT High Sensitivity - Hongfa HFD23/012-1ZS, A 2A subminiature signal relay from the HFD23 series that has a 150mW high sensitivity 12V DC coil and a SPDT contact configuration. Hongfa HFD23/012-1ZS PCB Signal Relay 12DC SPDT 2A