BT139-800E,127

Triacs Overview

The BT139-800E,127 is a bidirectional triac manufactured by WeEn Semiconductors, designed for high-power switching applications. It features an RMS on-state current of 16 A and a non-repetitive peak on-state current of 170 A. The device supports a rated repetitive off-state voltage (VDRM) of 800 V with a maximum off-state leakage current of 100 uA. Key electrical parameters include an on-state voltage of 1.2 V, a maximum holding current of 45 mA, a gate trigger voltage of 700 mV, and a gate trigger current of 25 mA. It operates within a temperature range of -40 C to +125 C and utilizes a TO-220-3 through-hole package.

Triacs Feature Summary

• Four-quadrant logic level triggering capability for reliable gate control across all polarity combinations.
• High thermal stability supporting operation up to +125 C junction temperature.
• Robust construction with 16 A RMS current handling in a standard through-hole package.

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay implementations
• General-purpose AC power switching circuits

Triacs Procurement Notes

Verify the specific suffix '127' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration and quantity per reel. Ensure compliance with RoHS and REACH requirements as specified in the latest component documentation before finalizing procurement specifications.

Triacs Selection Notes

Select this component when a 16 A RMS current rating and 800 V blocking voltage are required in a through-hole format. Compare gate trigger current specifications against available drive circuitry capabilities to ensure sufficient margin for reliable turn-on under varying load conditions.

Triacs Part Context

This part belongs to the BT139 series of four-quadrant triacs from WeEn Semiconductors. The series is widely used in industrial and consumer AC power control applications requiring robust switching performance. The 'E' variant typically denotes enhanced specifications or specific manufacturing revisions within the product line.

Triacs Replacement Considerations

Cross-reference with other manufacturers offering equivalent 16 A, 800 V TO-220-3 triacs. Verify pinout compatibility and thermal characteristics before substituting. Confirm that alternative parts meet the same gate trigger current and voltage requirements for direct replacement.