BT138-800,127

Triacs Overview

The BT138-800,127 is a four-quadrant sensitive gate triac manufactured by WeEn Semiconductors. It features an RMS on-state current of 12 A and a non-repetitive peak on-state current of 105 A. The device supports a rated repetitive off-state voltage (VDRM) of 800 V with a maximum leakage current of 100 uA at this voltage. On-state voltage is specified at 1.4 V, while the holding current maximum is 30 mA. Gate triggering requirements include a voltage of 700 mV and a current of 22 mA. Designed for through-hole installation in a TO-220F-3 package, it operates at a maximum temperature of +125 C.

Triacs Feature Summary

• Sensitive gate architecture enabling direct interfacing with logic level ICs
• Four-quadrant triggering capability for versatile phase control applications
• Passivated construction for enhanced reliability

Triacs Applications

• General purpose switching circuits
• Phase control systems
• Lamp dimmers

Triacs Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact electrical tolerances and packaging specifications. Ensure the component matches the required thermal management constraints for the intended operating environment. Cross-reference datasheet revisions to confirm compliance with current regulatory standards before finalizing procurement orders.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 12 A continuous current rating are required for AC load control. The sensitive gate characteristic simplifies drive circuit design compared to standard gate devices. Verify that the TO-220F-3 package provides adequate heat dissipation for the expected duty cycle and ambient temperature conditions.

Triacs Part Context

This part belongs to the BT138 series of four-quadrant triacs from WeEn Semiconductors. The series includes variants with different voltage ratings, such as the 600 V version. The BT138-800,127 specifically denotes the 800 V rating within the TO-220F-3 plastic package configuration.

Triacs Replacement Considerations

Compatible substitutes include the BT138Y-800E,127 and NXP BT138Y-800E,127. These alternatives share identical electrical characteristics and pinout configurations, allowing for direct replacement in existing designs without circuit modification.