BTA312-600B,127

Triacs Overview

The BTA312-600B,127 is a planar passivated high commutation three quadrant triac manufactured by WeEn Semiconductors. It is housed in a SOT78 (TO-220AB) plastic package and designed for circuits experiencing high static and dynamic dV/dt and dI/dt conditions. This Series B device commutates the full RMS current at maximum rated junction temperature without requiring a snubber circuit. Key electrical parameters include a repetitive peak off-state voltage of 600 V, an on-state RMS current of 12 A, and a non-repetitive peak on-state current of 100 A. The gate trigger current is limited to 50 mA across all quadrants, with a critical rate of rise of off-state voltage of 1000 V/µs.

Triacs Feature Summary

• High commutation capability allows full RMS current switching at maximum junction temperature without external snubber assistance.
• Planar passivated construction provides robustness against high static and dynamic dV/dt and dI/dt stresses.
• Three quadrant logic level operation ensures reliable triggering across multiple gate polarity configurations.

Triacs Applications

• Industrial motor control systems
• Solid state relays
• Lighting dimmers

Triacs Procurement Notes

Verify the manufacturer designation carefully, as WeEn Semiconductors was formed from NXP's standard products division. Confirm that the specific ordering suffix

Triacs Selection Notes

Select this component when high commutation performance is required without snubber circuits. Ensure the application operates within the 12 A RMS limit and respects the 600 V blocking voltage. Verify thermal management requirements for the TO-220AB package under continuous load conditions.

Triacs Part Context

This part belongs to the BTA312 series of three-quadrant triacs. It shares the same core electrical specifications as the NXP BTA312-600B but carries the WeSem branding following the corporate restructuring. The device is functionally equivalent to other Series B triacs in terms of commutation characteristics.

Triacs Replacement Considerations

Direct substitutes include the NXP BTA312-600B,127. Other compatible options may include STMicroelectronics equivalents with matching 12 A RMS and 600 V ratings, provided they meet the specific commutation and gate sensitivity requirements.