L401E3AP

Triacs Overview

The L401E3AP is a sensitive gate TRIAC manufactured by Littelfuse Inc., designed for AC power switching applications. It features a 400V repetitive peak off-state voltage and a 1A on-state current rating. The device utilizes a TO-92 through-hole package with three leads. Key electrical parameters include a gate trigger voltage of 2V and a gate trigger current of 3mA, enabling direct interface with logic circuits. It operates within a temperature range of -65°C to +110°C.

Triacs Feature Summary

• Sensitive gate architecture allows direct control from low-power logic devices
• Robust thermal performance supports operation in high-temperature environments
• Compact TO-92 package facilitates easy integration into space-constrained designs

Triacs Applications

• AC solid-state switches
• Lower current heating controls
• Water valve actuators
• Solenoid drivers

Triacs Procurement Notes

Verify the specific suffix 'AP' against the manufacturer's official datasheet to confirm pinout compatibility and gate sensitivity specifications. Ensure the procurement channel provides genuine Littelfuse components with traceable documentation to avoid counterfeit parts that may exhibit incorrect triggering characteristics or reduced voltage ratings.

Triacs Selection Notes

Select this component when a logic-level compatible TRIAC is required for low-current AC loads. The 3mA gate trigger current is critical for interfacing with microcontrollers or standard logic gates without additional driver circuitry. Consider the 400V rating for low-voltage AC systems and verify that the TO-92 package size fits the PCB layout constraints.

Triacs Part Context

This part belongs to the L401E3 series of low-power TRIACs from Littelfuse, which offers various voltage ratings up to 1200V. The L401E3AP specifically denotes the 400V variant with sensitive gate characteristics. This series is engineered for cost-effective solutions in consumer electronics and industrial control modules where small form factor and reliable switching are prioritized.

Triacs Replacement Considerations

Consult Littelfuse official documentation for cross-reference data. Generic TRIAC replacements must match the 400V VDRM, 1A IT(RMS), and 3mA IGT specifications to ensure functional equivalence in sensitive gate applications.