S2S4AY0F

Triac, SCR Output Optoisolators Overview

The S2S4AY0F is a zero-crossing type phototriac optoisolator manufactured by SHARP/Socle Technology. It features a Mini-Flat package with four terminals and provides an isolation voltage of 3750Vrms. The device supports a load voltage of 600V and includes an integrated zero-crossing circuit for reduced electromagnetic interference. Key electrical parameters include a maximum turn-on time of 50µs, a minimum static dv/dt of 1000V/µs, and a holding current of 3.5mA. It operates within a temperature range of -30°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for noise reduction
• High isolation voltage capability of 3750Vrms
• Mini-Flat surface-mount packaging design
• Fast turn-on response time suitable for AC switching

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) driver circuits
• AC power control systems
• Industrial automation interface modules
• Consumer appliance motor control

Triac, SCR Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors due to the prevalence of counterfeit optoelectronic devices. Confirm that the received units match the specific Mini-Flat package dimensions and pinout configuration required by the target PCB layout. Ensure storage conditions comply with moisture sensitivity level requirements to prevent solderability issues during assembly processes.

Triac, SCR Output Optoisolators Selection Notes

Select this component when high-voltage isolation and low-noise AC switching are required in compact designs. The zero-crossing feature makes it ideal for applications demanding minimal electromagnetic interference generation. Consider the 600V load voltage rating and 1000V/µs dv/dt capability for robust performance in inductive load environments compared to standard triac outputs.

Triac, SCR Output Optoisolators Part Context

This part belongs to the S2S4 series of phototriac optoisolators from SHARP/Socle Technology. The series is designed for general-purpose AC switching applications requiring reliable isolation between control and power circuits. The Mini-Flat variant offers a smaller footprint compared to traditional DIP packages, facilitating denser board layouts in modern electronic equipment.

Triac, SCR Output Optoisolators Replacement Considerations

The APT1231S from Panasonic Industry is documented as a similar replacement option. Verify compatibility regarding package dimensions, pin assignments, and electrical characteristics such as isolation voltage and trigger currents before substitution. Ensure the alternative component meets the same zero-crossing functionality requirements if noise reduction is critical.