L2004F31

Triacs Overview

The Littelfuse L2004F31 is a sensitive gate TRIAC designed for AC power control applications. It features a 200 V blocking voltage and a 4 A on-state current rating. The device utilizes a TO-202 (TO-92) through-hole package. It guarantees four-quadrant gating sensitivity with specific gate trigger currents of 3 mA across all quadrants, enabling reliable control by digital logic circuits.

Triacs Feature Summary

• Four-quadrant sensitive gate operation ensures reliable triggering from both positive and negative logic pulses.
• Glass-passivated junction construction provides long-term parameter stability and device reliability.
• Electrically isolated package design facilitates safe mounting to heat sinks without additional insulation requirements.

Triacs Applications

• Lighting dimmer circuits requiring low-power gate drive
• Solid-state relay inputs controlled by microprocessors
• Small appliance motor speed control systems

Triacs Procurement Notes

Verify the component status as obsolete in official Littelfuse records before initiating procurement. Confirm that the TO-202 package dimensions match the target PCB footprint. Ensure the 200V rating meets the peak inverse voltage requirements of the specific AC line being controlled.

Triacs Selection Notes

Select this component when low gate current drive is required from digital logic sources. The 4A current rating suits light loads, while the 200V rating limits use to lower voltage AC lines. Consider higher voltage variants if operating near mains peaks or transient conditions.

Triacs Part Context

This part belongs to the Teccor Sensitive Gate TRIAC family, which includes devices ranging from 0.8 A to 8 A. These components are characterized by guaranteed control in all four quadrants, distinguishing them from standard TRIACs that may require higher gate currents or specific quadrant operation.

Triacs Replacement Considerations

Public confirmed substitute part numbers: L4004F31.