QJ4025KH6TP

Triacs Overview

The Littelfuse QJ4025KH6TP is a high-temperature bidirectional triac designed for robust power control applications. It features a rated RMS on-state current of 25 A and a repetitive peak off-state voltage of 400 V. The device operates within an extended temperature range from -40°C to +150°C, ensuring reliability in demanding environments. Key electrical parameters include a maximum gate trigger current of 80 mA and a holding current of up to 100 mA. Packaged in a TO-220AB-3 through-hole enclosure, it provides efficient isolation and thermal management for industrial switching circuits.

Triacs Feature Summary

• High-temperature operation capability extending to 150°C for enhanced durability
• Robust 25 A RMS current handling for heavy-duty load switching
• Isolated construction within the TO-220AB-3 package for safety

Triacs Applications

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

Triacs Procurement Notes

Verify the specific suffix 'H' denotes the high-temperature variant when sourcing replacements. Confirm the TO-220AB-3 pinout matches the target PCB footprint. Ensure the 400V rating aligns with the circuit's peak voltage requirements. Check RoHS compliance status if required by local regulations. Validate the 80mA gate drive capability against the control circuitry specifications.

Triacs Selection Notes

Select this component when applications require reliable switching at elevated temperatures beyond standard limits. The 400V rating suits lower voltage AC mains or isolated DC-to-AC inversion stages. Consider the 80mA gate current requirement to ensure adequate driver strength. The TO-220AB-3 package facilitates heatsinking for sustained 25A loads. Verify insulation requirements match the isolated nature of the device.

Triacs Part Context

This part belongs to the Littelfuse QJxx25xHx series of thyristors. It is categorized under general-purpose triacs designed for power control. The manufacturer specializes in protection and sensing technologies. This specific model targets industrial markets requiring high thermal stability.

Triacs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with generic 25A 400V TO-220 triacs only after confirming gate trigger characteristics and thermal resistance values.