Q4025L5TP

Triacs Overview

The Littelfuse Q4025L5TP is a bidirectional triac designed for high-temperature applications, housed in an isolated TO-220AB package. 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 maintains a maximum holding current of 100 mA and exhibits an on-state voltage of 1.8 V. Gate triggering parameters include a maximum voltage of 2.5 V and a current of 50 mA. Leakage current at VDRM is specified at 10 uA. The component operates within a temperature range from -40 C to +125 C.

Triacs Feature Summary

• High-temperature capability suitable for demanding thermal environments
• Isolated construction for enhanced safety and mounting flexibility
• Robust 25 A RMS current handling capacity

Triacs Applications

• AC power control circuits
• Solid-state relays
• Motor speed control systems

Triacs Procurement Notes

Verify the specific manufacturer part number against official Littelfuse documentation to ensure authenticity. Confirm that the TO-220AB isolation type matches the design requirements. Check for any recent product change notifications or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Triacs Selection Notes

Select this component when a 400 V rating and 25 A continuous current are required in a through-hole isolated package. Ensure the gate drive circuit can supply at least 50 mA at 2.5 V. Verify that the operating environment stays within the -40 C to +125 C range and that thermal management supports the power dissipation associated with the 1.8 V on-state voltage drop.

Triacs Part Context

This triac belongs to the Q series of thyristors manufactured by Littelfuse. It shares the 400 V / 25 A electrical profile with other variants like the Q4025N5TP, but differs in package style and thermal characteristics. The Q4025L5TP specifically utilizes the TO-220AB form factor, distinguishing it from surface-mount alternatives within the same electrical family.

Triacs Replacement Considerations

Direct substitutes may include the Q4025L5 if isolation requirements differ. Cross-reference with Q4025N5TP only if surface mount packaging is acceptable. Verify pinout compatibility and thermal resistance values before substituting.