BTA312B-600B,118

Triacs Overview

The BTA312B-600B,118 is a planar passivated high commutation three-quadrant triac manufactured by WeEn Semiconductors. It is housed in a SOT404 (D2PAK) surface-mountable plastic package, designated as TO263. The device features a rated repetitive peak off-state voltage (VDRM) of 600 V and an RMS on-state current (IT(RMS)) of 12 A. Non-repetitive peak on-state current (ITSM) is specified at 100 A. Maximum gate trigger current (IGT) across quadrants Q1, Q2, and Q3 is 50 mA. The static and dynamic dV/dt rating is 1000 V/µs. The maximum operating junction temperature (Tj) is 125 °C. This Series B triac is designed to commutate full RMS current at maximum rated junction temperature without requiring a snubber circuit.

Triacs Feature Summary

• Planar passivated construction for robust performance in high commutation environments
• Three-quadrant operation capability with high static and dynamic dV/dt ratings
• Snubberless commutation design allowing full RMS current switching at maximum junction temperature

Triacs Applications

• Industrial motor control circuits
• High-power lighting dimming systems
• Solid-state relays requiring high dI/dt tolerance

Triacs Procurement Notes

Verify the complete orderable part number BTA312B-600B,118 against manufacturer documentation to ensure correct packaging and RoHS compliance status. Confirm that the TO263 package variant matches the specific thermal and mechanical requirements of the target PCB layout before finalizing procurement orders.

Triacs Selection Notes

Select this component when designing circuits necessitating surface-mount integration with high current handling capabilities. The Series B designation indicates optimized commutation performance suitable for inductive loads. Ensure the driving circuit can supply the required 50 mA gate trigger current across all operating quadrants to guarantee reliable turn-on under varying load conditions.

Triacs Part Context

This device belongs to the BTA312 series of high-current triacs from WeEn Semiconductors. It serves as the surface-mount equivalent to through-hole variants like the BTA312-600B. The Series B suffix specifically denotes the commutation characteristics and gate sensitivity profile distinct from other series such as Series C or E within the same voltage and current rating family.

Triacs Replacement Considerations

Direct pin-compatible replacements include the BTA312B-600CT for higher temperature operation up to 150 °C, though gate sensitivity differs. For through-hole applications, the BTA312-600B offers identical electrical parameters in a TO-220AB package.