Specifications: The APY215G1E is the through-hole DIP-4 version of a compact, high-current PhotoMOS SSR. It is a 1 Form A (SPST-NO) relay rated for 1.1A load current and 150V load voltage (AC/DC). It features a low 0.45Ω on-state resistance, 5000Vrms isolation, and asymmetrical switching times of 1500μs (turn-on) and 80μs (turn-off). It operates from -40°C to 85℃ with a 1.2-1.4VDC input. Application Scenarios: Perfect for through-hole designs needing medium-current switching with high isolation. Common applications include industrial automation I/O modules, home appliance control boards, telecommunications equipment, and automotive electronics, offering the same reliable performance as the SMD version in a package suited for hand-soldering, prototyping, or applications requiring through-hole robustness.