Specifications: The APY217GS is a PhotoMOS SSR rated for 200mA at 200V (AC/DC) in a compact SOP-4 package. It features a 1.8Ω on-state resistance, 2500Vrms isolation, and switching times of 200μs (on) and 40μs (off). It is designed for harsh environments with an operating range of -40°C to 85°C and uses 1.2-1.4VDC for control.

Application Scenarios: A versatile relay for medium-voltage signal and low-power switching. Commonly used in industrial communication interfaces (RS-485, CAN), sensor power isolation, medical monitoring equipment, and as a reliable switch in power over Ethernet (PoE) injectors or splitters where isolation and reliability are key.