Q4010LH5

Triacs Overview

The Littelfuse Q4010LH5 is a four-quadrant triac belonging to the Qxx10xx series, designed for AC power control applications. It features a 400V repetitive peak off-state voltage and an RMS on-state current rating of 10A. The device utilizes a TO-220AB package with an isolated flange mount configuration. Key electrical parameters include a maximum DC gate trigger current of 50mA and a typical on-state voltage of 1.6V. It operates within a temperature range of -40°C to 125°C and exhibits a critical rate of rise of off-state voltage of 225 V/µs.

Triacs Feature Summary

• Four-quadrant sensitivity enables reliable triggering across all gate polarities.

Triacs Applications

• AC motor speed control circuits
• Solid-state relay switching
• Lighting dimmer controls

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact thermal and mechanical specifications. Ensure the selected variant matches the required isolation and mounting constraints for the target application design.

Triacs Selection Notes

Select this component based on the 400V blocking capability and 10A continuous current requirement. Confirm that the TO-220AB package provides adequate thermal dissipation for the intended load conditions and operating environment.

Triacs Part Context

This part belongs to the Qxx10xx family of high-reliability thyristors from Littelfuse. These devices are engineered for robust performance in industrial power control systems requiring precise AC regulation and high surge handling capabilities.

Triacs Replacement Considerations

Consult Littelfuse cross-reference guides for verified equivalents. Ensure any substitute maintains identical voltage ratings, current capacity, and package dimensions for direct integration.