BTA425Y-800BTQ

Triacs Overview

The BTA425Y-800BTQ is a planar passivated high commutation three-quadrant triac manufactured by WeEn Semiconductors. It is housed in an internally insulated TO-220AB (SOT78D) plastic package designed for through-hole mounting. The device features a rated repetitive off-state voltage of 800 V and an RMS on-state current capability of 25 A. It supports a non-repetitive peak on-state current of 250 A. Key electrical parameters include a maximum gate trigger current of 50 mA across quadrants Q1, Q2, and Q3, and a maximum holding current of 75 mA. The component operates within a junction temperature range up to +150 °C and exhibits a typical on-state voltage of 1.2 V.

Triacs Feature Summary

• Three-quadrion Hi-Com technology providing improved noise immunity and high resistance to false turn-on caused by rapid voltage changes.
• Planar passivated construction enabling full RMS current commutation at maximum rated junction temperature without requiring external snubber circuits.
• Internally insulated plastic package design intended for applications involving high static and dynamic dV/dt and dI/dt conditions.

Triacs Applications

• High-temperature industrial control circuits
• Power switching applications subject to high dv/dt stress
• General purpose AC power regulation

Triacs Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package orientation and packing format. Confirm RoHS compliance status and chemical content declarations via official datasheets prior to integration. Ensure thermal management designs account for the specified maximum junction temperature limits during operation.

Triacs Selection Notes

Select this component when circuit requirements demand 800 V blocking capability with 25 A continuous current handling in a thermally robust package. The internal insulation feature is critical for safety isolation requirements in mains-connected equipment. Verify that the 50 mA gate drive current aligns with the available control logic output capabilities.

Triacs Part Context

This part belongs to the BTA425 series of high commutation triacs from WeEn Semiconductors. It shares core electrical characteristics with variants such as the BTA425X-800BTQ and BTA425Z-800CT, differing primarily in package type and specific mechanical dimensions. The Y-series designation typically corresponds to the TO-220AB form factor.

Triacs Replacement Considerations

Direct functional substitutes within the same family include BTA425X-800BTQ and BTA425Z-800CT. Cross-package replacements require verification of pinout compatibility and thermal dissipation characteristics. Always validate mechanical fit and insulation ratings before substituting.