BTA204S-800B,118

Triacs Overview

The BTA204S-800B,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. The device supports an RMS current of 4 A with a non-repetitive peak on-state current of 25 A. It features a rated repetitive peak off-state voltage of 800 V and a maximum junction temperature of 125 °C. This series B triac is engineered to commutate the full rated RMS current at maximum junction temperature without requiring a snubber circuit.

Triacs Feature Summary

• High commutation capability suitable for environments with high static and dynamic dV/dt and high dI/dt
• Snubberless operation allowing full rated RMS current commutation at maximum junction temperature
• Three-quadrant gate triggering sensitivity optimized for industrial applications

Triacs Applications

• Phase control circuits
• Static switching for inductive loads
• Static switching for resistive loads

Triacs Procurement Notes

Verify the specific orderable part number BTA204S-800B,118 against the manufacturer's official documentation to ensure correct series identification. Confirm that the TO252 package variant matches the required PCB footprint. Check RoHS compliance status and lead-free conversion dates if environmental regulations apply to the target assembly process.

Triacs Selection Notes

Select this component when designing circuits that require robust commutation performance without external snubber networks. Ensure the application operates within the 800 V blocking voltage limit and 4 A RMS current rating. Verify that the thermal management design accommodates the 125 °C maximum junction temperature constraint for reliable long-term operation.

Triacs Part Context

This component belongs to the BTA204 series of high commutation triacs from WeEn Semiconductors. It shares the same core electrical ratings as other variants like the Series C and E but differs in gate trigger characteristics. The Series B specifically targets applications demanding high dV/dt immunity and snubberless functionality in a compact surface-mount form factor.

Triacs Replacement Considerations

Direct replacements include BTA204S-800C,118 and BTA204S-800E,118. These alternatives share the same package and primary electrical ratings but exhibit different gate trigger currents and dV/dt ratings. Verify compatibility with existing gate drive circuits before substitution.