SST12B-800BW

Triacs Overview

The SST12B-800BW is a standard triac manufactured by SMC Diode Solutions, designed for general-purpose power switching applications. It features an 800V off-state voltage rating and supports a 12A on-state RMS current. The component utilizes a TO-220B (TO-220-3) through-hole package, ensuring robust mechanical stability for industrial environments. It operates within a junction temperature range of -40°C to 125°C, providing reliable performance in demanding thermal conditions. This device is suitable for use in lighting controls, motor control circuits, and various power switching systems requiring high-voltage AC handling capabilities.

Triacs Feature Summary

• Standard triac configuration for general-purpose AC power control
• High voltage blocking capability with 800V off-state rating
• Robust current handling with 12A on-state RMS capacity
• Through-hole mounting via TO-220B package for secure installation

Triacs Applications

• Lighting control systems
• Motor control circuits
• General-purpose power switching

Triacs Procurement Notes

Verify the specific suffix BW against official SMC Diode Solutions documentation to confirm package type and pinout compatibility. Ensure that the TO-220B form factor matches the target PCB footprint and thermal management requirements. Confirm availability status as distribution channels may list varying stock levels or end-of-life statuses. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability. Check for any specific environmental compliance certifications required for the intended application market.

Triacs Selection Notes

Select this component when an 800V rating and 12A continuous current are sufficient for the load requirements. Consider the TO-220B package size constraints and thermal dissipation needs for the enclosure design. Evaluate the operating temperature range to ensure it aligns with the ambient conditions of the application. Compare against other triacs in the SST series if different voltage or current ratings are needed. Ensure gate trigger characteristics meet the driving circuit specifications for reliable switching.

Triacs Part Context

The SST12B-800BW belongs to the SST12 series of triacs from SMC Diode Solutions, which are engineered for medium-power AC switching tasks. This series typically offers standardized electrical characteristics suitable for commercial and industrial markets. The TO-220B package provides a balance between current capacity and physical size, making it common in consumer electronics and appliance control boards. It serves as a fundamental discrete semiconductor solution for phase-angle control and zero-crossing detection applications.

Triacs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify cross-references using official manufacturer substitution guides or authorized distributor databases. Ensure any alternative component matches the 800V voltage rating, 12A current capacity, and TO-220B package dimensions. Check for equivalent gate trigger parameters to maintain circuit performance without modification.