QJ8008RH4TP

Triacs Overview

The QJ8008RH4TP is an Alternistor TRIAC manufactured by Littelfuse, designed for high-reliability power control applications. It features a maximum repetitive peak off-state voltage of 800V and an RMS on-state current rating of 8A. The device utilizes a TO-220AB flange mount package with three pins, ensuring robust thermal management through main terminal 2 connection. Key electrical characteristics include a gate trigger voltage of up to 1.3V DC and a holding current of 35mA. The component supports a critical rate of rise of off-state voltage of 200 V/us and a critical rate of rise of on-state current of 25 V/us, operating at temperatures up to 125°C.

Triacs Feature Summary

• High reliability construction suitable for demanding industrial environments
• Flange mount design facilitates efficient heat dissipation via main terminal 2
• Robust commutation performance with specified dv/dt and di/dt ratings

Triacs Applications

• Industrial motor control systems requiring high surge tolerance
• Solid state relays for heavy-duty switching applications
• Power regulation circuits in commercial equipment

Triacs Procurement Notes

Verify the specific suffix 'J' against official Littelfuse documentation to confirm exact binning or testing variations compared to standard variants. Ensure the TO-220AB flange mount configuration matches your thermal interface requirements. Confirm RoHS compliance status directly from the manufacturer's latest datasheet before finalizing procurement specifications.

Triacs Selection Notes

Select this component when an 8A RMS current capacity and 800V blocking voltage are required in a flange-mountable package. Consider the 1.3V maximum gate trigger voltage for driver compatibility. Evaluate the thermal resistance of the TO-220AB package against your system's heat sink capabilities to ensure operation within the 125°C junction temperature limit under expected load conditions.

Triacs Part Context

This part belongs to the Qxx08xHx series of Alternistor TRIACs from Littelfuse. These devices are engineered as high-performance replacements for traditional thyristors, offering improved ruggedness and switching characteristics. The series is widely utilized in applications demanding reliable phase control and high surge current handling capabilities in compact power modules.

Triacs Replacement Considerations

Cross-reference with Q8008RH4TP for potential functional equivalence, noting that suffix differences may indicate specific manufacturing lot variations or minor parameter shifts. Verify pinout compatibility and thermal pad alignment before substituting in existing PCB layouts.