Q4010L5

Triacs Overview

The Littelfuse Q4010L5 is a bidirectional triac designed for AC power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an RMS on-state current (IT(RMS)) of 10 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 50 mA, and a gate trigger current of 50 mA. The component exhibits a low on-state voltage of 1.6 V and a maximum off-state leakage current of 10 µA. It is housed in a TO-220-2 package.

Triacs Feature Summary

• Bidirectional switching capability for alternating current circuits
• High thermal stability with operation up to 125°C
• Low on-state voltage for efficient power handling
• Robust construction suitable for industrial environments

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact pinout and packaging variations. Ensure compatibility with existing thermal management designs given the TO-220-2 form factor. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Triacs Selection Notes

Select this component when a 400 V rating and 10 A continuous current capacity are required for AC load switching. Consider the TO-220-2 package for through-hole mounting requirements. Evaluate thermal dissipation needs based on the 1.6 V on-state voltage drop under expected load conditions.

Triacs Part Context

This part belongs to the Littelfuse Qxx10xx series of thyristors. The series provides standardized solutions for general-purpose AC power control. The Q4010L5 specifically addresses applications requiring moderate current handling with reliable triggering characteristics in standard industrial configurations.

Triacs Replacement Considerations

Consult Littelfuse cross-reference guides for verified equivalents. Ensure substitute parts match the 400 V / 10 A specification and TO-220-2 footprint. Verify identical gate trigger parameters to maintain circuit stability.