QJ4006DH3RP

Triacs Overview

The QJ4006DH3RP is a bidirectional triac manufactured by Littelfuse, designed for surface-mount applications in the TO-252 (D-PAK) package. It features an RMS on-state current rating of 6 A and a rated repetitive off-state voltage of 400 V. The device exhibits a maximum on-state voltage of 1.4 V, with gate trigger requirements of 1.3 V and 35 mA. Leakage current at rated voltage is limited to 10 uA. It operates within a temperature range of -40 C to +150 C and is supplied in reel packaging.

Triacs Feature Summary

• Bidirectional switching capability for AC control circuits
• Surface-mount construction in a compact TO-252-3 package
• High thermal stability supporting operation up to 150 C

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Lighting dimmer circuitry

Triacs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or direct manufacturer channels. Confirm RoHS compliance status via official datasheets. Ensure ordering quantities align with standard reel packaging multiples. Validate part markings against official specifications to prevent counterfeit substitution.

Triacs Selection Notes

Select this component when a 6 A RMS current capacity and 400 V blocking voltage are required in a surface-mount form factor. Consider the 1.4 V on-state voltage drop for thermal management calculations. Verify that the TO-252 footprint fits the target PCB layout constraints.

Triacs Part Context

This triac belongs to the QJxx06xH series from Littelfuse, which focuses on general-purpose power control devices. The series provides standardized performance metrics for industrial and consumer AC switching applications. The specific model integrates robust latching characteristics suitable for reliable long-term operation in varied electrical environments.

Triacs Replacement Considerations

Consult Littelfuse official documentation for verified cross-reference part numbers. Ensure substitute components match the 6 A RMS current, 400 V voltage rating, and TO-252 package dimensions. Verify identical gate trigger parameters to maintain circuit compatibility.