BT137X-800/L02,127

Triacs Overview

The BT137X-800/L02,127 is a four-quadrant logic level triac manufactured by WeEn Semiconductors. It features an RMS on-state current rating of 8 A and a repetitive peak off-state voltage of 800 V. The device is housed in a TO-220FP package with three pins for through-hole mounting. Key electrical parameters include a maximum gate trigger voltage of 1.5 V and a maximum holding current of 40 mA. It operates within a temperature range of -40°C to +125°C and supports a non-repetitive peak on-state current of 71 A.

Triacs Feature Summary

• Four-quadrant logic level triggering capability for simplified interface design
• Planar passivated construction ensuring high voltage ruggedness and reliability
• Sensitive gate architecture providing improved noise immunity

Triacs Applications

• General purpose bidirectional switching
• Phase control applications
• Motor drive circuits

Triacs Procurement Notes

Verify the specific suffix L02 against official WeSem documentation to confirm pinout and mechanical dimensions, as suffixes often denote tape-and-reel packaging or specific manufacturing lot codes rather than functional changes. Ensure the component matches the required TO-220FP footprint and thermal management requirements for the target application environment.

Triacs Selection Notes

Select this component when an 8 A RMS current handling capacity and 800 V blocking voltage are required in a through-hole configuration. The logic-level sensitivity allows direct interfacing with standard digital logic outputs without additional driver circuitry. Verify that the 40 mA holding current meets the minimum load requirements of the controlled circuit to prevent unintended turn-off.

Triacs Part Context

This part belongs to the BT137X series of four-quadrant triacs from WeEn Semiconductors. The series is designed for robust performance in AC power control applications. The 'X' designation typically indicates a specific variant within the broader BT137 family, distinguished by its voltage rating and package type compared to other series members like the BT136 or BT137S.

Triacs Replacement Considerations

Direct replacements include the BT137X-800/DG,127 and BT137X-800E,127, which share identical electrical ratings and package types. Cross-reference with NXP Semiconductors equivalents such as the BT137X-800D,127 to ensure compatibility in existing designs.