BT138X-800E,127

Triacs Overview

The BT138X-800E,127 is a bidirectional triac manufactured by WeEn Semiconductors, designed for through-hole mounting in the TO-220FP-3 package. It supports an RMS on-state current of 12 A and withstands rated repetitive off-state voltages up to 800 V. The device exhibits a maximum on-state voltage of 1.4 V and a non-repetitive peak on-state current capability of 105 A. Gate triggering requirements include a maximum voltage of 700 mV and current of 11 mA. Operating temperatures range from -40 C to +125 C, with a maximum holding current of 30 mA and off-state leakage current of 100 uA at VDRM.

Triacs Feature Summary

• Bidirectional thyristor structure enabling AC power control applications
• High thermal performance packaging suitable for heat dissipation
• Robust gate triggering characteristics for reliable switching

Triacs Applications

• General purpose AC power switching
• Lighting control systems
• Motor speed regulation circuits

Triacs Procurement Notes

Verify component authenticity against official WeEn Semiconductors documentation. Confirm package integrity and pin alignment for TO-220FP-3 compatibility. Ensure storage conditions maintain moisture sensitivity levels prior to assembly. Cross-reference datasheet revisions to confirm parameter consistency during procurement.

Triacs Selection Notes

Select this component when 12 A RMS current handling and 800 V blocking voltage are required in a through-hole configuration. Evaluate thermal management needs given the TO-220FP-3 footprint. Compare gate trigger currents against driver capabilities to ensure sufficient signal strength for reliable turn-on under varying load conditions.

Triacs Part Context

This part belongs to the BT138X series of high-current triacs within the WeEn Semiconductors portfolio. It shares functional similarities with other devices in the family but is distinguished by its specific 12 A rating and 800 V voltage class. The suffix indicates standard commercial grade specifications and packaging format.

Triacs Replacement Considerations

Direct substitutes may include BTA138-800 or equivalent 12 A/800 V triacs in TO-220FP packages. Verify electrical parameters such as holding current and gate trigger thresholds match original design requirements before substitution.