L4004V5

Triacs Overview

The L4004V5 is a sensitive-gate TRIAC manufactured by Littelfuse Inc., designed for AC power switching applications. It features a peak repetitive off-state voltage of 400 V and an on-state current rating of 4 A. The device utilizes a TO-251AA (TO-251) package with short leads, also known as I-Pak or V-Pak, suitable for through-hole mounting. This component serves as a bidirectional solid-state switch for controlling electrical loads in various consumer and industrial electronics.

Triacs Feature Summary

• Sensitive gate architecture enabling reliable triggering with low gate current requirements
• Bidirectional AC power switching capability for phase control applications
• Robust thermal performance within the TO-251AA surface-mount compatible package

Triacs Applications

• Lighting dimmer circuits
• Small motor speed control
• Temperature modulation systems

Triacs Procurement Notes

Verify that the ordered component matches the exact Littelfuse part number L4004V5 to ensure correct voltage and current ratings. Confirm RoHS3 compliance status if environmental regulations apply to your assembly process. Check for lead-free specifications and ensure the TO-251AA package variant aligns with your PCB footprint requirements before finalizing procurement.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 4 A continuous current capacity are required for AC load control. The sensitive gate feature simplifies driver circuit design compared to standard gate TRIACs. Ensure the application does not exceed the maximum RMS on-state current limits defined in the official datasheet to maintain reliability.

Triacs Part Context

This device belongs to the family of low-power TRIACs from Littelfuse, specifically engineered for general-purpose AC switching. It complements other series like the L4004V3, offering standardized packaging and performance characteristics for mass-produced electronic equipment requiring compact thyristor solutions.

Triacs Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalents. Cross-reference parameters such as V_DRM, I_T(RMS), and gate trigger current when evaluating alternative manufacturers' components to ensure functional compatibility.