BTA12-400BRG

Triacs Overview

The BTA12-400BRG is a three-terminal TRIAC manufactured by STMicroelectronics, designed for general-purpose AC switching applications. It features a rated average on-state current of 12 A and a repetitive peak off-state voltage of 400 V. The device utilizes a TO-220AB through-hole package with an isolated tab configuration, allowing direct heatsink mounting without additional insulators. Key electrical parameters include a maximum gate trigger current of 50 mA, a peak on-state voltage of 1.55 V, and a non-repetitive surge current rating of 126 A. It operates within a junction temperature range of -40°C to +125°C.

Triacs Feature Summary

• Features an insulated tab design utilizing an internal ceramic pad for high-voltage isolation between the terminal and the mounting surface.
• Provides high commutation performance suitable for inductive loads such as motor drives.
• Employs clip bonding technology to achieve low thermal resistance for efficient heat dissipation.

Triacs Applications

• General purpose AC power switching
• Motor speed control and drive systems
• Industrial lighting control

Triacs Procurement Notes

Verify the specific part number against official STMicroelectronics documentation to confirm availability and exact specifications. Ensure that the procurement channel provides genuine components with traceable manufacturing data. Cross-reference the datasheet for any updates regarding compliance standards or pin configurations before finalizing orders.

Triacs Selection Notes

Select this component when a 12 A RMS current rating and 400 V blocking voltage are required for AC load control. The TO-220AB package is appropriate for applications requiring robust mechanical mounting and effective thermal management via external heatsinks. Consider the 50 mA gate trigger requirement for driver circuit compatibility.

Triacs Part Context

This device belongs to the BTA series of standard insulated TRIACs from STMicroelectronics. The series is characterized by its ability to handle medium current operations with high reliability. The BTA12 variant specifically targets applications needing 12 A continuous current handling capabilities in a standardized through-hole form factor.

Triacs Replacement Considerations

Compatible substitutes within the same family include the BTA12-600BRG and BTA12-800BRG, which offer higher voltage ratings while maintaining identical current and package specifications. Verify that alternative manufacturers' equivalents match the 12 A current and 400 V voltage requirements exactly.