BT131-800E/L01EP

Overview

The BT131-800E/L01EP is a standard triac manufactured by WeEn Semiconductors, designed for general-purpose AC switching applications. It features an RMS on-state current of 1 A and a repetitive peak off-state voltage rating of 800 V. The device operates within a junction temperature range up to +125°C and utilizes a TO-92-3 through-hole package. Key electrical characteristics include a maximum holding current of 10 mA, a gate trigger voltage of 1 V, and a non-repetitive surge current capacity of 12.5 A at 50 Hz or 13.7 A at 60 Hz.

Feature Summary

• Standard triac configuration suitable for general-purpose AC power control
• Through-hole TO-92-3 package design for reliable mounting
• High thermal stability with operation up to +125°C junction temperature

Applications

• General purpose AC switching circuits
• Light dimmer phase control operations
• Induction motor starting circuits

Procurement Notes

Verify the specific suffix L01EP against the manufacturer's official datasheet to confirm package dimensions and marking details. Ensure compatibility with existing PCB footprints for the TO-92-3 form factor. Cross-reference the part number with authorized distributors to confirm current availability status and lead times before finalizing procurement plans.

Selection Notes

Select this component when an 800 V blocking voltage and 1 A continuous current are required in a compact through-hole package. Consider the 10 mA holding current specification for low-power load retention requirements. Verify that the 1 V gate trigger voltage aligns with the driving circuit's output capabilities for reliable turn-on performance.

Part Context

This part belongs to the BT131 series of standard triacs from WeEn Semiconductors. The series is engineered for robust AC switching performance in consumer and industrial electronics. The BT131-800 variant specifically provides higher voltage blocking capability compared to lower-rated siblings, making it suitable for mains-connected applications requiring enhanced isolation margins.

Replacement Considerations

Compatible substitutes include the BT131-800 and BT131-800E variants from the same manufacturer family. Other manufacturers offering equivalent 1 A, 800 V triacs in TO-92 packages may serve as functional replacements if pinout and thermal specifications match.