QK025L6TP

Triacs Overview

The Littelfuse QK025L6TP is a bidirectional triac rated for 1000V repetitive off-state voltage and 25A RMS on-state current. It features an 80mA gate trigger current and 1.3V gate trigger voltage, with a maximum holding current of 100mA. The device exhibits a 1.8V on-state voltage and operates within a temperature range of -40°C to +125°C. Packaged in an isolated TO-220AB (TO-220-2) flange mount configuration, it provides high reliability for power control applications.

Triacs Feature Summary

• High-voltage blocking capability suitable for demanding AC power switching environments
• Isolated flange mount construction facilitates efficient thermal management and secure mounting
• Robust gate drive characteristics enable reliable triggering with standard control circuitry

Triacs Applications

• Industrial motor speed control systems
• Solid-state relays requiring high isolation
• AC power regulation circuits

Triacs Procurement Notes

Verify the specific Littelfuse datasheet for the QK025L6TP to confirm compliance with RoHS directives and REACH SVHC requirements before integration. Ensure that the TO-220AB package dimensions align with the target PCB or heatsink layout. Confirm that the 80mA gate trigger specification matches the driving interface capabilities to guarantee proper turn-on performance under all operating conditions.

Triacs Selection Notes

Select this component when a 1000V rating is required for AC load switching. The 25A RMS current capacity supports moderate to high-power industrial loads. The isolated TO-220AB package is preferred over non-isolated variants when electrical isolation between the heat sink and the circuit ground is necessary for safety or noise reduction purposes.

Triacs Part Context

This part belongs to the Littelfuse Qxx25xx series of thyristors, designed for general-purpose power control. It shares the 25A current rating with other members of the family but differs in voltage ratings and gate sensitivity. The QK025L6TP specifically targets applications needing high voltage blocking with moderate gate drive requirements.

Triacs Replacement Considerations

The QK025N5TP is a related variant within the same series but features different gate trigger specifications (50mA). Verify if the lower gate current requirement of the N5TP variant is compatible with the existing drive circuit before substitution.