BTA204S-800C,118

Triacs Overview

The BTA204S-800C,118 is a planar passivated high commutation three-quadrant triac manufactured by WeEn Semiconductors. It is housed in a TO252 (DPAK) surface-mountable plastic package designed for circuits experiencing high static and dynamic dV/dt and high dI/dt conditions. The device supports an 800 V rated repetitive off-state voltage and conducts a 4 A RMS on-state current. It features a non-repetitive peak surge current of 25 A and maintains a maximum junction temperature of 125 °C. Gate trigger currents are specified at 35 mA across quadrants Q1, Q2, and Q3, with a static dV/dt rating of 1000 V/µs.

Triacs Feature Summary

• High commutation capability allows full rated RMS current commutation at maximum junction temperature without snubber assistance.
• Planar passivated construction provides robustness against high static and dynamic dV/dt and high dI/dt environments.
• Three-quadrant operation ensures reliable triggering and switching performance across multiple gate signal polarities.

Triacs Applications

• Industrial motor control systems requiring high commutation reliability
• Solid-state relay applications subject to rapid voltage transients
• AC power switching circuits interfacing with logic-level drivers

Triacs Procurement Notes

Verify the specific suffix 'C' corresponds to the high commutation variant with 35 mA gate trigger requirements. Confirm the orderable part number includes the ',118' packing designation for reel quantities. Cross-reference the manufacturer's latest datasheet to ensure compliance with current RoHS and chemical content declarations before finalizing procurement specifications.

Triacs Selection Notes

Select this component when circuit designs demand high dV/dt immunity and snubber-less commutation at elevated temperatures. The 800 V blocking voltage suits medium-voltage AC loads, while the 4 A RMS rating defines the continuous load capacity. Ensure the driving circuit can supply the required 35 mA gate current for all operating quadrants to guarantee stable turn-on under varying thermal conditions.

Triacs Part Context

This device belongs to the BTA204S series of surface-mount triacs from WeEn Semiconductors. The 'C' series designation specifically denotes the high commutation version optimized for harsh electrical environments. It shares the DPAK footprint with other variants but differs internally in gate sensitivity and commutation characteristics compared to standard or sensitive gate models within the same family.

Triacs Replacement Considerations

Direct substitutes include the BTA204S-800B,118, which offers identical voltage and current ratings but with a higher 50 mA gate trigger current. Designers must verify that their gate drive circuitry can accommodate the increased trigger requirement if swapping between these specific series variants.