S2S4BY0F

Triac, SCR Output Optoisolators Overview

The S2S4BY0F is a single-channel optoisolator featuring a Triac output, manufactured by SHARP/Socle Technology. It provides an isolation voltage of 3750Vrms and includes an integrated zero-crossing detection circuit for precise switching control. The device operates within a temperature range of -30°C to 100°C and utilizes a 4-SMD surface-mount package. Key electrical specifications include a maximum forward current of 50 mA, a holding current of 3.5 mA, and a peak off-state voltage of 600 V. The component is currently classified as obsolete.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for controlled phase-angle firing applications
• High isolation capability with 3750Vrms dielectric strength between input and output
• Triac output configuration designed for AC load switching
• Surface-mount 4-SMD packaging for automated assembly integration

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) modules
• AC motor speed control circuits
• Lighting dimmer systems
• Heater control interfaces

Triac, SCR Output Optoisolators Procurement Notes

This component is officially listed as obsolete and no longer in active production by the manufacturer. Verification of availability should focus on surplus stock or secondary market sources rather than direct manufacturing orders. Buyers must confirm the authenticity of existing inventory and check for potential supply chain restrictions. Replacement planning is recommended due to the discontinued status.

Triac, SCR Output Optoisolators Selection Notes

Engineers selecting this part should prioritize designs requiring high-voltage isolation and zero-crossing functionality for AC loads. The 4-SMD footprint dictates specific PCB layout constraints. Given the obsolete status, alternative components from the same family or competitors with matching isolation ratings and output types must be evaluated for long-term sustainability and supply security.

Triac, SCR Output Optoisolators Part Context

The S2S4BY0F belongs to the S2S4 series of optoisolators produced by SHARP/Socle Technology. This series focuses on providing reliable isolation for power control applications. The specific model integrates zero-crossing detection, distinguishing it from standard triac outputs that require external timing circuits for noise immunity and reduced electromagnetic interference during switching events.

Triac, SCR Output Optoisolators Replacement Considerations

The S2S4A00F is documented as a parameter-equivalent substitute for the S2S4BY0F. Designers should verify pin compatibility and thermal characteristics when transitioning to this replacement part to ensure seamless integration into existing hardware designs.