Specifications: The APY234S is a medium-voltage PhotoMOS SSR in an SOP-4 package. It is a 1 Form A (SPST-NO) relay rated for 150mA at 400V AC/DC. It has an 11Ω on-state resistance, provides 2500Vrms isolation, and features fast switching times of 80μs (on) and 20μs (off). It operates from -40°C to 85℃ with 1.2-1.4VDC control.

Application Scenarios: A compact, cost-effective relay for medium-voltage switching. Suitable for industrial control circuits, appliance control boards, power supply output enables, status indicator switching, and as an interface for microcontrollers to control AC/DC loads up to 400V, offering reliable performance and the manufacturing benefits of a standard SOP footprint.