Specifications: The APY274S is a medium-voltage PhotoMOS SSR rated for 300mA at 400V (AC/DC) in an SOP-4 package. It has an 8Ω on-state resistance and provides 2500Vrms of isolation. It features 500μs turn-on and a very fast 30μs turn-off time. The device operates from -40°C to 85°C and is controlled by 1.2-1.4VDC.

Application Scenarios: Designed for reliable switching of medium-voltage, moderate-current loads. Ideal for industrial sensor and transducer power supply isolation, medical device auxiliary power control, HVAC system valve/solenoid control, and as an output enable switch in medium-power DC/DC or AC/DC power supplies.