BTA312-800C,127

Triacs Overview

The BTA312-800C,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. This Series C device achieves full RMS current commutation at maximum rated junction temperature without requiring a snubber circuit. Key electrical parameters include an 800 V repetitive peak off-state voltage, a 12 A RMS on-state current, and a non-repetitive peak on-state current of 100 A. The gate trigger current is limited to 35 mA across all quadrants, with a critical rate of voltage rise of 500 V/µs.

Triacs Feature Summary

• Planar passivated construction ensures robust performance under high commutation conditions.

Triacs Applications

• Industrial motor control systems
• High-power lighting dimmers
• Solid-state relays

Triacs Procurement Notes

Verify the specific ordering suffix

Triacs Selection Notes

Select this component when high dv/dt immunity is required without external snubbers. Ensure the TO-220AB package fits the thermal and spatial constraints of the design. Confirm that the 35 mA gate drive capability matches the output strength of the control logic.

Triacs Part Context

This part belongs to the BTA312 series of three quadrant triacs from WeEn Semiconductors. It shares the same core die and electrical ratings as other variants but differs in packaging or minor parameter tolerances. The Series C designation specifically indicates optimized commutation characteristics compared to other series within the family.

Triacs Replacement Considerations

Direct replacements include the BTA312-800B,127 and BTA312-800E,127. Verify that the alternative variant's gate sensitivity and commutation requirements align with the existing circuit design before substitution.