HQ6025LH5

Triacs Overview

The Littelfuse HQ6025LH5 is a high-temperature Alternistor Triac designed for AC switching and phase control applications. It features a 600V rated repetitive off-state voltage and an RMS on-state current of 25A. The device operates within a temperature range of -40°C to +150°C, utilizing a TO-220AB isolated package for through-hole mounting. Key electrical parameters include a maximum holding current of 50mA, a gate trigger current of 50mA, and a typical on-state voltage of 1.8V.

Triacs Feature Summary

• High-temperature capability suitable for demanding thermal environments
• Alternistor technology providing symmetrical bidirectional switching
• Isolated package design for enhanced safety in power circuits

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Industrial heating element regulation

Triacs Procurement Notes

Verify the specific suffix 'TP' or standard packaging against the required reel or tube quantity. Confirm RoHS compliance status via the latest manufacturer datasheet before integration. Ensure the TO-220AB isolation pad matches the PCB thermal and electrical clearance requirements for the target voltage rating.

Triacs Selection Notes

Select this component when high thermal stability is required for continuous AC load switching. Compare the 50mA gate trigger current against available driver capabilities. Verify that the 600V voltage rating provides sufficient margin for line transients in the specific application circuit.

Triacs Part Context

This part belongs to the QJxx25xHx series family of high-temperature triacs from Littelfuse. It shares core specifications with variants like the QJ6025LH5TP but may differ in packaging or ordering suffixes. The Alternistor architecture distinguishes it from standard triacs by offering improved dv/dt performance.

Triacs Replacement Considerations

The QJ6025LH5TP is a direct functional equivalent within the same product family. Verify pinout compatibility and thermal resistance values when substituting with other 25A 600V TO-220AB triacs.