L401E5

Triacs Overview

The L401E5 is a bidirectional triac manufactured by Littelfuse Inc., designed for AC power control applications. It features a 400V voltage rating and supports a continuous on-state current of 1A. The device utilizes a sensing gate structure with specific gate trigger current requirements ranging from 5mA to 55mA, ensuring reliable switching in sensitive circuits. Packaged in a standard through-hole configuration suitable for general-purpose industrial and consumer electronics, this component provides robust performance for low-power AC load management.

Triacs Feature Summary

• Bidirectional triac construction for AC power switching
• Sensing gate architecture for precise triggering
• 400V blocking voltage capability
• 1A continuous on-state current rating

Triacs Applications

• General AC load control circuits
• Low-power motor speed regulation
• Lighting dimmer applications

Triacs Procurement Notes

Verify the exact package type and pinout configuration against the official Littelfuse datasheet before integration. Confirm that the 5-5-5-5mA sensing gate specifications align with your microcontroller or driver interface requirements. Ensure thermal management strategies are adequate for the 1A continuous current rating in your specific enclosure design.

Triacs Selection Notes

Select the L401E5 when a 400V rated triac with a 1A current capacity is required for AC control tasks. The sensing gate feature makes it suitable for applications where precise gate drive characteristics are necessary. Compare its voltage and current ratings against other available triacs to ensure compatibility with the target circuit's peak voltages and load currents.

Triacs Part Context

This component belongs to the broader category of thyristors and triacs offered by Littelfuse for power control solutions. Triacs like the L401E5 are fundamental building blocks in AC power electronics, enabling phase control and switching functions in various electronic devices. They are commonly used in conjunction with other passive components to form complete power regulation systems.

Triacs Replacement Considerations

Consult Littelfuse documentation for direct replacements. Verify that any substitute part matches the 400V rating, 1A current capacity, and sensing gate characteristics to maintain circuit functionality.