BTA204-800B,127

Triacs Overview

The BTA204-800B,127 is a planar passivated high commutation three-quadrant triac manufactured by WeEn Semiconductors. It is housed in a TO-220AB plastic package and designed for circuits requiring high static and dynamic dv/dt and di/dt immunity. The device supports an RMS on-state current of 4 A and a non-repetitive peak on-state current of 25 A. It features a rated repetitive peak off-state voltage of 800 V and a maximum junction temperature of +125 °C. Key electrical parameters include a gate trigger current of 50 mA across quadrants Q1, Q2, and Q3, and a critical rate of turn-on (dv/dt) of 1000 V/µs.

Triacs Feature Summary

• High commutation capability allowing full rated RMS current commutation at maximum junction temperature without snubber assistance
• Planar passivated construction providing robust performance under high static and dynamic dv/dt conditions
• Three-quadrant operation ensuring reliable triggering and switching across all standard gate signal polarities

Triacs Applications

• Industrial motor control systems requiring high dv/dt immunity
• Solid-state relays operating under high di/dt stress
• General purpose AC power switching applications

Triacs Procurement Notes

Verify the specific ordering suffix to confirm the packing method, as the BTA204-800B series utilizes horizontal rail pack packaging for volume production. Confirm RoHS compliance and lead-free status through official chemical content documentation before integration into regulated assemblies.

Triacs Selection Notes

Select this component when circuit designs demand high commutation reliability without external snubber networks. Ensure the application operates within the 800 V blocking voltage limit and that thermal management supports the 125 °C maximum junction temperature constraint for sustained 4 A RMS loads.

Triacs Part Context

This part belongs to the BTA204 series of planar passivated triacs from WeEn Semiconductors. It is specifically engineered for environments with high electromagnetic interference or rapid voltage transients, distinguishing it from standard triacs that may require additional protection components for similar duty cycles.

Triacs Replacement Considerations

Direct substitutes must match the 4 A RMS rating, 800 V blocking voltage, and TO-220AB package. Verify that alternative devices also support three-quadrant triggering with comparable gate sensitivity and dv/dt ratings to maintain circuit stability.