LJ4008V8TP

Triacs Overview

The Littelfuse LJ4008V8TP is a bidirectional triac designed for AC power control applications. It features an RMS on-state current rating of 8 A and a repetitive peak off-state voltage (VDRM) of 800 V. The device operates within a junction temperature range of -40°C to +150°C and is housed in a surface-mount TO-252-3 (D-PAK) package. Key electrical parameters include a maximum gate trigger voltage (VGT) of 1.3 V, a gate trigger current (IGT) of 35 mA, and an on-state voltage drop of 1.5 V. Leakage current at rated voltage is specified at 10 µA.

Triacs Feature Summary

• Bidirectional switching capability for AC load control
• Surface-mount construction for automated PCB assembly
• High thermal stability with extended operating temperature range

Triacs Applications

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

Triacs Procurement Notes

Verify the specific suffix 'V8' against official Littelfuse documentation to confirm exact pinout and sensitivity class variations. Ensure component authenticity through authorized distribution channels. Confirm RoHS compliance status via the manufacturer's latest datasheet revision before finalizing procurement specifications.

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 thermal management requirements based on the TO-252-3 package dissipation characteristics. Verify that the gate drive circuit can supply the specified 35 mA trigger current reliably across the full operating temperature range.

Triacs Part Context

This part belongs to the LJxx08xx series of high-power triacs from Littelfuse. The series is engineered for robust performance in industrial and consumer AC power switching environments. The TO-252-3 packaging facilitates efficient heat transfer and space-constrained board layouts compared to traditional leaded packages.

Triacs Replacement Considerations

Cross-reference with other 8 A, 800 V triacs in TO-252 packages. Verify compatibility of gate trigger characteristics and pin configurations before substituting.