Q2025R6

Triacs Overview

The Q2025R6 is an Alternistor TRIAC manufactured by Littelfuse, designed for high-performance AC switching applications. It features a non-latching gate structure that eliminates the need for external snubber networks, thereby simplifying circuit design and reducing component count. The device is rated for a repetitive peak off-state voltage of 200V and provides an on-state RMS current capacity of 25A. It is housed in a TO-220AB flange mount package with three pins, ensuring robust thermal management and electrical isolation between the main terminal and the mounting surface.

Triacs Feature Summary

• Alternistor technology enables direct gate triggering without requiring external snubber circuits
• Non-latching gate structure prevents false triggering from high dv/dt conditions
• Flange mount package provides effective heat dissipation for high current loads

Triacs Applications

• Solid state relays
• Motor speed controls
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix code to confirm exact pin configuration and packaging variant. Ensure the supplier provides official Littelfuse documentation to validate the part number authenticity. Check for RoHS compliance status if required by your manufacturing standards. Confirm the package type matches your PCB or chassis mounting requirements before ordering.

Triacs Selection Notes

Select this component when designing circuits that require high noise immunity and simplified layout due to the absence of snubber components. The 25A current rating suits moderate to heavy industrial loads. Consider the thermal resistance of the TO-220AB package relative to your expected ambient temperature and heat sink capabilities to ensure reliable operation under continuous load conditions.

Triacs Part Context

This device belongs to the Teccor brand family of power switches from Littelfuse. The Alternistor series specifically addresses the limitations of standard TRIACs by integrating a non-latching gate. This family is widely used in industrial control systems where reliability and reduced bill-of-materials complexity are critical design factors.

Triacs Replacement Considerations

Direct replacements must match the 200V voltage rating and 25A current capacity. Verify that substitute devices also feature Alternistor technology to maintain the no-snubber design advantage. Ensure the replacement package is compatible with existing mounting hardware and thermal interfaces.