L4008L659

Triacs Overview

The L4008L659 is a bidirectional triac manufactured by Littelfuse, designed for AC power control applications. It features an on-state current capacity of 8A and a repetitive peak off-state voltage rating of 400V. The device utilizes sensitive gate triggering with sensing currents ranging from 5mA to 10mA. It is housed in a TO-220-2 package, providing robust thermal performance and mechanical stability for industrial mounting. The component includes glass-passivated junctions to ensure long-term reliability and parameter stability under varying electrical conditions.

Triacs Feature Summary

• Sensitive gate triggering capability for low-power control circuits
• Glass-passivated junctions for enhanced durability and stability
• Integrated heat dissipation via TO-220-2 mounting surface

Triacs Applications

• AC motor speed controls
• Lighting dimmer circuits
• Temperature modulation systems

Triacs Procurement Notes

Verify the specific suffix '59' against the official Littelfuse datasheet to confirm exact marking or tape-and-reel specifications. Ensure the procurement channel provides the original manufacturer's documentation to validate the part number authenticity and technical parameters before integration into designs.

Triacs Selection Notes

Select this component when an 8A RMS current handling capability at 400V blocking voltage is required. The sensitive gate characteristic makes it suitable for direct interfacing with logic-level control signals without additional amplification. Consider the TO-220-2 package size for available board space and thermal management requirements in the target application.

Triacs Part Context

This part belongs to the Lxx08x series of sensitive triacs from Littelfuse. These devices are engineered for general-purpose AC switching where noise immunity and reliable turn-on characteristics are critical. The series offers a balance of high current density and precise gate sensitivity for various consumer and industrial electronics.

Triacs Replacement Considerations

Consult the Littelfuse replacement guide for equivalent parts with matching voltage, current, and package specifications. Verify that any substitute maintains the same sensitive gate threshold and TO-220-2 footprint to ensure compatibility with existing PCB layouts and thermal solutions.