Hongfa hfd3 2a subminiature pcb mount signal relays dpdt hongfa hfd3005 l2 a subminiature pcb signal relay with a 5v dc coil switching capacity of 2a and a dpdt contact configuration the relay is of the 2 coils latching type and has pcb type terminals hongfa hfd3005 l2 pcb mount relay 5v dc dpdt 2 coils latching