BT131-800E,412

Overview

The WeEn Semiconductors BT131-800E,412 is a standard bidirectional triac designed for general-purpose AC switching applications. It features an RMS on-state current of 1 A and supports a repetitive peak off-state voltage of 800 V. The device operates within a junction temperature range of -40 °C to +125 °C. Key electrical characteristics include a maximum holding current of 5 mA and a gate trigger voltage of up to 700 mV. Packaged in a TO-92-3 through-hole configuration, it provides reliable performance for low-power control circuits requiring robust voltage blocking capabilities.

Feature Summary

• Bidirectional conduction capability for AC load control
• High voltage blocking rating suitable for mains interfacing
• Through-hole mounting for standard PCB integration

Applications

• Lighting dimmers
• Motor speed controllers
• Heating element regulation

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing thermal management designs given the TO-92 form factor. Cross-reference datasheet revisions to confirm parameter stability before finalizing component selection for production.

Selection Notes

Select this component when a compact, low-current triac is required for AC phase control. The 800 V rating provides sufficient margin for standard single-phase line voltages. Consider the gate sensitivity requirements of the driving circuit against the specified trigger parameters to ensure reliable turn-on under varying temperature conditions.

Part Context

This part belongs to the BT131 series of standard triacs from WeEn Semiconductors. The series is characterized by its planar passivation technology and robust construction for industrial and consumer electronics. It serves as a fundamental switching element in power control modules where moderate current handling and high voltage isolation are necessary.

Replacement Considerations

Direct replacements include the BT131-800,116 or other variants within the BT131 family sharing identical pinouts and electrical ratings. Verify that substitute parts maintain the same TO-92-3 package dimensions and thermal characteristics to fit existing footprints without modification.