Specifications: The APY211G1EH is a high-efficiency, compact SMD-4 PhotoMOS SSR. It is a 1 Form A (SPST-NO) device rated for 1.1A at 60V AC/DC. It features a very low 0.27Ω on-state resistance, provides 5000Vrms isolation, and switches with 1500μs (on) and 50μs (off) times. It operates from -40°C to 85℃ with 1.2-1.4VDC control. Application Scenarios: Designed for high-efficiency medium-current switching in the smallest possible footprint. Ideal for driving high-current LEDs, small motors, or solenoids in compact consumer electronics, advanced automotive modules, portable medical devices, and dense telecom hardware, where minimizing power loss and board space are equally important.