Specifications: The APY227S is a PhotoMOS SSR rated for 130mA at 200V (AC/DC) in an SOP-4 package. It has a 1.8Ω on-state resistance and provides 2500Vrms isolation. Switching times are 150μs (on) and 40μs (off). Designed for industrial environments, it operates from -40°C to 85°C with a 1.2-1.4VDC control signal.

Application Scenarios: A general-purpose relay for low-to-medium power switching at moderate voltages. Common uses include interfacing microcontrollers with AC/DC loads in industrial controls, switching indicator lights or small relays, sensor signal isolation, and as a reliable component in vending machines, commercial appliances, and HVAC control boards.