Q4025L6

Triacs Overview

The Littelfuse Q4025L6 is a bidirectional triac designed for AC power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (IT(RMS)) of 25 A. The device operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum holding current of 50 mA, a gate trigger voltage of 2.5 V, and a gate trigger current of 80 mA. It exhibits an on-state voltage of 1.4 V and a non-repetitive peak on-state current capability of 250 A. The component utilizes a TO-220 package for through-hole mounting.

Triacs Feature Summary

• High surge current handling capability suitable for demanding switching environments
• Sensitive gate configuration allowing direct interfacing with microprocessor drivers
• Robust thermal performance optimized for high-temperature AC power control

Triacs Applications

• Solid-state relays
• Motor speed control circuits
• Lighting dimmer switches

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm pinout and isolation requirements. Ensure the selected variant matches the required thermal management strategy for the target application environment.

Triacs Selection Notes

Select this component based on the 400 V blocking voltage and 25 A continuous current rating. Confirm that the gate drive circuitry can supply the specified 80 mA trigger current reliably across the operating temperature range.

Triacs Part Context

This part belongs to the Qxx25xxLx series of high-temperature triacs from Littelfuse. These devices are engineered for robust performance in industrial and consumer AC power regulation systems requiring reliable switching under varying load conditions.

Triacs Replacement Considerations

Q4025L6TP

Triacs FAQ

What is the maximum non-repetitive peak on-state current?

The Q4025L6 supports a non-repetitive peak on-state current of 250 A.

Does this triac support sensitive gate triggering?

Yes, the device features a sensitive gate design with a maximum gate trigger current of 80 mA, facilitating direct interface with logic-level drivers.