The AQV212S is a Solid State Relay with SPST-NO contact and surface-mount terminals. This AQV-series PhotoMOS GU 1-form-A relay feature extremely low closed-circuit offset voltage to enable control of low-level analogue signals without distortion. Eliminates the need for a counter electromotive force protection diode in the drive circuits on the input side. Controls various types of loads such as relays, motors, lamps and solenoids.