SST20B-600BW

Triacs Overview

The SST20B-600BW is a standard TRIAC manufactured by SMC Diode Solutions, designed for AC power control applications. It features a peak repetitive off-state voltage of 600 V and an RMS on-state current rating of 20 A. The device utilizes a TO-220B through-hole package, providing robust thermal management capabilities. Key electrical specifications include a maximum gate trigger voltage of 1.3 V and a maximum gate trigger current of 10 mA. The component operates within a junction temperature range of -40°C to 125°C and supports non-repetitive surge currents up to 35 A at 50 Hz. It complies with RoHS3 standards and has a moisture sensitivity level of 1.

Triacs Feature Summary

• Standard TRIAC configuration for general-purpose AC switching
• High current handling capability with 20 A RMS rating
• Robust thermal design via TO-220B through-hole package
• Low gate trigger requirements for efficient driver interfacing

Triacs Applications

• Lighting dimmer circuits
• Motor speed control systems
• Solid state relays
• Heating element regulation

Triacs Procurement Notes

Verify the specific suffix 'BW' against the manufacturer's datasheet to confirm pinout and packaging details, as suffixes can indicate variations in lead finish or tape/reel specifications. Ensure the procurement channel provides valid traceability documentation. Confirm that the requested quantity aligns with the manufacturer's standard packing units to avoid unnecessary handling fees or partial reel charges. Cross-reference the date code to ensure compliance with current environmental regulations such as RoHS3.

Triacs Selection Notes

Select this component when a high-current TRIAC is required for through-hole assembly in AC power applications. The 20 A rating suits moderate to heavy loads, while the 600 V blocking voltage handles standard line voltages. Consider the TO-220B package for its superior heat dissipation compared to surface-mount alternatives. Evaluate the gate trigger characteristics against the driving circuit's output capability to ensure reliable turn-on under all operating conditions.

Triacs Part Context

The SST20B-600BW belongs to the SST series of TRIACs from SMC Diode Solutions, which focuses on silicon-controlled rectifiers for industrial and consumer electronics. This series emphasizes reliability and performance in power control scenarios. The TO-220B form factor is common in legacy and high-power designs where mechanical mounting and thermal conductivity are critical. It complements other SMC offerings like the SST136K series for surface-mount needs.

Triacs Replacement Considerations

Publicly confirmed substitute part numbers for the SST20B-600BW are not available in the provided source data. Engineers should consult official cross-reference lists from SMC Diode Solutions or authorized distributors for verified equivalents. Ensure any replacement matches the 600 V voltage rating, 20 A current capacity, and TO-220B package dimensions.