L4008L8TP

Triacs Overview

The Littelfuse L4008L8TP is a bidirectional triac designed for power control applications, housed in a surface-mount TO-252 (D-PAK) package. It features an RMS on-state current rating of 8 A and a repetitive peak off-state voltage of 800 V. The device exhibits a maximum on-state voltage of 1.5 V at rated current and requires a gate trigger current of 35 mA with a gate trigger voltage of 1.3 V to activate. Leakage current in the off-state is limited to 10 uA under rated voltage conditions. The component operates within a temperature range from -40 C to +150 C, ensuring reliability in demanding thermal environments.

Triacs Feature Summary

• Bidirectional switching capability for AC load control
• Surface-mount D-PAK packaging for automated assembly
• High thermal stability up to 150 C junction temperature

Triacs Applications

• Solid-state relay modules
• AC motor speed control circuits
• Lighting dimmer switches

Triacs Procurement Notes

Verify the specific suffix 'L' against official Littelfuse documentation to confirm sensitivity class and variant details, as standard equivalents may differ. Confirm RoHS compliance status via the manufacturer's current datasheet revision. Ensure the ordering quantity aligns with factory tube pack sizes to avoid partial reel issues during procurement.

Triacs Selection Notes

Select this component when an 8 A RMS current capacity and 800 V blocking voltage are required in a compact SMD form factor. Evaluate the thermal resistance of the PCB layout to maintain junction temperatures below 150 C under continuous load. Compare gate trigger requirements with the driving circuit capabilities to ensure reliable turn-on without excessive drive current.

Triacs Part Context

This part belongs to the LJxx08xx series of triacs from Littelfuse, which are engineered for general-purpose AC power switching. The series emphasizes robust performance in industrial and consumer appliances. The TO-252 package provides a balance between current handling capability and board space efficiency compared to larger through-hole alternatives.

Triacs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and electrical parameters before considering any cross-reference components from other manufacturers.