SST16A-800BW

Triacs Overview

The SST16A-800BW is a standard TRIAC manufactured by SMC Diode Solutions, designed for AC power control applications. It features an 800 V non-repetitive peak off-state voltage and a maximum on-state RMS current of 16 A. The device utilizes a TO-220AIns insulated package for through-hole mounting, providing electrical isolation from the heatsink. Key electrical characteristics include a gate trigger voltage maximum of 1.5 V and a gate trigger current maximum of 50 mA. It operates within a junction temperature range of -40°C to 125°C.

Triacs Feature Summary

• Provides electrical isolation via an insulated TO-220AIns package suitable for direct heatsink mounting without additional insulators.
• Capable of handling high surge currents with a non-repetitive peak on-state current rating of 160 A at 50 Hz.
• Designed for reliable switching in AC circuits with a standard triac configuration and defined gate triggering parameters.

Triacs Applications

• High-power AC motor speed control systems
• Industrial heating element regulation
• Solid-state relay (SSR) output stages

Triacs Procurement Notes

Verify the specific suffix 'BW' corresponds to the insulated variant when sourcing replacements. Confirm that the TO-220AIns package dimensions match the existing PCB footprint and thermal management design. Ensure the selected component meets the required RoHS compliance standards for the target assembly process. Cross-reference the manufacturer's latest datasheet for any updates to absolute maximum ratings or thermal resistance values before finalizing procurement.

Triacs Selection Notes

Select this component when high-voltage isolation is required between the control circuit and the power stage. The 16 A RMS rating supports substantial load currents, while the 800 V blocking voltage accommodates standard industrial line voltages. Consider the thermal performance of the insulated package if ambient temperatures are elevated. This part is suitable for designs needing robust surge capability and simplified mechanical installation due to the integrated insulation layer.

Triacs Part Context

The SST16A-800BW belongs to the SST series of TRIACs from SMC Diode Solutions. It is positioned as a high-current alternative to lower-rated devices like the SST06A or SST12A within the same voltage class. The insulated packaging distinguishes it from standard TO-220 variants, offering enhanced safety in compact industrial enclosures where grounding isolation is critical for regulatory compliance.

Triacs Replacement Considerations

Compatible substitutes include the SST12A-800BW for lower current requirements and the SST16B-800BW for non-insulated applications. Verify pinout compatibility and thermal resistance differences when swapping between insulated and non-insulated packages. Ensure the replacement maintains the 800 V voltage rating and sufficient surge current capacity for the specific application loads.