BT139-800,127

Triacs Overview

The BT139-800,127 is a glass passivated four-quadrant logic level triac manufactured by WeEn Semiconductors. It operates with an RMS on-state current of 16 A and supports a non-repetitive peak on-state current of 170 A. The device features a rated repetitive peak off-state voltage (VDRM) of 800 V and a maximum holding current of 45 mA. Gate triggering requirements include a voltage of 700 mV and a current of 25 mA. The component exhibits an on-state voltage of 1.2 V and a leakage current of 100 uA at VDRM. It functions 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 simplified gate drive circuits
• Glass passivation provides protection against moisture and mechanical stress
• High thermal stability suitable for demanding industrial environments

Triacs Applications

• General purpose AC power control applications
• Solid state relays requiring high isolation and reliability
• Industrial motor speed control systems

Triacs Procurement Notes

Verify the specific ordering suffix to confirm the packaging format, as variations exist between rail tube and tape reel configurations. Ensure the component meets RoHS compliance standards required for the target assembly process. Cross-reference the manufacturer part number with official datasheets to validate pinout compatibility before integration into existing designs.

Triacs Selection Notes

Select this component when a 16 A RMS current rating and 800 V blocking voltage are required in a through-hole package. Compare gate trigger current specifications against available driver capabilities to ensure reliable turn-on. Evaluate thermal management requirements based on the TO-220-3 package's heat dissipation characteristics under continuous load conditions.

Triacs Part Context

This triac belongs to the BT139 series, which offers robust performance for general switching applications. The device represents a standard solution for replacing older Philips or NXP equivalents in legacy designs. Its logic level interface allows direct driving from microcontrollers or optocouplers without additional amplification stages.

Triacs Replacement Considerations

Compatible substitutes include the BT139B-800E,127 and BT139-800T,127. Verify that alternative packages maintain identical pin assignments and electrical parameters to ensure drop-in replacement capability without circuit modification.