The AQY210S is a 1-pole GU-E PhotoMOS Relay with AC/DC type, SOP series. 1-channel (form-A) 4-pin type, picked from the 1/2-pin side. 4-pin type in super miniature design. Controls low-level analogue signals PhotoMOS relays feature extremely low closed-circuit offset voltage to enable control of low-level analogue signals without distortion. The SSR with an off state leakage current of several milliamps, the PhotoMOS relay features a very small off state leakage current of only 100pA.