Q4010R5

Triacs Overview

The Littelfuse Q4010R5 is a bidirectional triac designed for AC power control applications. It features a 400 V rated repetitive off-state voltage and conducts a continuous RMS on-state current of 10 A. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220-2 through-hole package. Key electrical characteristics include a maximum holding current of 50 mA, a gate trigger voltage of 2.5 V, and an on-state voltage of 1.6 V. Non-repetitive peak on-state currents are specified at 100 A and 120 A under different pulse conditions.

Triacs Feature Summary

• Bidirectional switching capability for alternating current circuits
• Robust thermal performance with high junction temperature tolerance
• Standardized pinout configuration for easy integration

Triacs Applications

• Solid-state relays
• Motor speed control systems
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact electrical tolerances and packaging variations. Ensure the component meets RoHS compliance requirements for the target market. Cross-reference datasheet revisions to validate parameter consistency before finalizing procurement specifications.

Triacs Selection Notes

Select this component when a 10 A RMS current rating and 400 V blocking voltage are required in a through-hole format. Evaluate the gate trigger current requirements against the driving circuit capabilities. Consider thermal management solutions suitable for the TO-220-2 package based on the expected ambient operating conditions.

Triacs Part Context

This part belongs to the Qxx10xx series of triacs from Littelfuse. The series provides standardized solutions for general-purpose AC power switching. Similar parts in the lineup offer higher current ratings or different voltage grades while maintaining compatible mounting styles.

Triacs Replacement Considerations

Check for direct equivalents such as the Q4010R5TP if tape-and-reel packaging is preferred over tubes. Verify that alternative triacs match the 10 A RMS and 400 VDRM specifications exactly.