BTA25-800BW

Triacs Overview

The BTA25-800BW is a three-terminal triac manufactured by STMicroelectronics, designed for general-purpose AC power switching applications. It features an RMS on-state current rating of 25 A and a repetitive peak off-state voltage of 800 V. The device supports a non-repetitive surge current of 260 A and operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum gate trigger current of 50 mA, a maximum gate trigger voltage of 1.3 V, and a holding current of 75 mA. It utilizes the RD-91 package for through-hole mounting.

Triacs Feature Summary

• High current handling capability with 25 A RMS rating
• Robust thermal performance via clip bonding in RD-91 package
• Sensitive gate triggering at 50 mA for efficient drive requirements

Triacs Applications

• General purpose mains power AC switching
• Solid state relay implementations
• Industrial motor control circuits

Triacs Procurement Notes

Verify the specific suffix 'BW' against official STMicroelectronics documentation to confirm exact pinout and marking variations compared to standard variants like B or BWRG. Ensure the component matches the required RD-91 package dimensions and lead configuration for your PCB layout. Cross-reference datasheet revisions to confirm compliance with current RoHS directives and UL certification status.

Triacs Selection Notes

Select this component when a 25 A RMS current capacity and 800 V blocking voltage are required for AC load control. The RD-91 package offers high thermal stability suitable for screw-mount heatsinking. Consider the 50 mA gate trigger current for driver compatibility. Evaluate thermal resistance characteristics if operating near the upper temperature limits.

Triacs Part Context

This part belongs to the BTA25 series of standard triacs from STMicroelectronics. The series is engineered for robust performance in high-current AC switching environments. The BTA25 family shares common electrical characteristics but varies in packaging options such as TO-220AB or surface-mount configurations to suit different assembly needs.

Triacs Replacement Considerations

Direct substitutes may include other 25 A, 800 V triacs in similar packages. Verify equivalent ratings for I(T,RMS), V(DRM), and I(GT). Check physical footprint compatibility for RD-91 mounting. Alternative series like BTA24 or BTA26 may offer similar performance with slight parameter differences.