QJ8025RH5TP

Triacs Overview

The Littelfuse QJ8025RH5TP is a high-temperature bidirectional triac from the QJxx25xHx series, designed for robust power control applications. It features an RMS on-state current of 25 A and a rated repetitive off-state voltage (VDRM) of 800 V. The device exhibits a maximum non-repetitive peak on-state current of 250 A and a low on-state voltage of 1.8 V. Gate triggering requirements are specified at a maximum voltage of 1.3 V and current of 35 mA. With a maximum holding current of 50 mA and leakage current of 10 uA, it operates within a temperature range of -40°C to +150°C. Packaged in a TO-220AB-3 through-hole case, it provides reliable performance in demanding thermal environments.

Triacs Feature Summary

• High-temperature capability with a maximum operating junction temperature of +150°C
• Sensitive gate trigger characteristics for efficient drive circuit integration
• Robust surge handling with a 250 A non-repetitive peak on-state current rating

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay modules
• High-temperature heating element regulation

Triacs Procurement Notes

Verify the specific suffix RH5TP against official Littelfuse documentation to confirm pinout and isolation specifications. Ensure the ordering part number matches the required thermal and electrical ratings for the target application. Cross-reference datasheet revisions to confirm compliance with current RoHS and REACH standards before finalizing procurement.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 25 A continuous current capacity are required in a through-hole package. The +150°C operating limit makes it suitable for enclosed or high-ambient-temperature designs where standard 125°C devices may fail. Compare gate trigger currents against available driver outputs to ensure sufficient margin for reliable turn-on under varying load conditions.

Triacs Part Context

This triac belongs to the Littelfuse Teccor QJ series, which specializes in high-temperature thyristor solutions. The QJxx25xHx family designation indicates a 25 A class device optimized for elevated thermal stress. It serves as a specialized alternative to standard TRIACs in industrial sectors requiring extended thermal margins and high reliability.

Triacs Replacement Considerations

Direct substitutes include the QJ8025RH4TP, which shares identical electrical parameters and packaging but may differ in specific manufacturing lot or minor mechanical tolerances. Verify that any replacement maintains the same TO-220AB-3 footprint and 800 V/25 A ratings.