QJ8040JH6TP

Triacs Overview

The Littelfuse QJ8040JH6TP is a high-temperature alternistor triac designed for robust AC switching applications. It features an RMS on-state current of 40 A and a rated repetitive off-state voltage of 800 V, housed in an isolated SMTO-218 package. The device operates within a junction temperature range of -40°C to +150°C. Key electrical parameters include a maximum non-repetitive peak on-state current of 500 A, a holding current of 100 mA, and a gate trigger voltage of 1.3 V. With a low on-state voltage of 1.6 V and minimal leakage current of 20 uA, it provides efficient power control.

Triacs Feature Summary

• High-temperature operation capability up to 150°C junction temperature
• Electrically isolated TO-218AC package eliminates need for external insulators
• Snubberless design simplifies circuit requirements

Triacs Applications

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

Triacs Procurement Notes

Verify the specific suffix JH6TP against official Littelfuse documentation to confirm exact gate characteristics and thermal ratings. Ensure the ordered component matches the required isolation voltage and package type for your PCB layout. Cross-reference datasheet revisions to confirm compliance with current RoHS standards before finalizing procurement.

Triacs Selection Notes

Select this component when high thermal stability and snubberless operation are required. The 40A rating suits moderate power loads, while the 800V blocking voltage handles standard industrial line voltages. Verify that the 100mA holding current aligns with your load minimums to prevent premature turn-off during operation cycles.

Triacs Part Context

This part belongs to the QJxx40xx series of high-temperature TRIACs from Littelfuse. These devices are engineered for reliability in harsh environments where standard silicon components may fail. The series utilizes glass-passivated junctions to ensure parameter stability over long operational lifetimes.

Triacs Replacement Considerations

Check Littelfuse QJ8040K4TP or QJ8040KH6TP for potential substitutes. Confirm that gate trigger currents and holding currents match your driver circuit capabilities before swapping parts.