Relay 2 Click Mikroe Relay 2 Click features two LCA717 single-pole OptoMOS® solid-state relays and two screw terminals for connecting the wiring. Mikroe Relay 2 Click has a load current of 2A, a low maximum on-resistance of 0.15Ω, a blocking voltage of 30V, OptoMOS optically coupled outputs, a signal LED, and are designed to use a 3.3V power supply only.