Q4006NH4RP

Triacs Overview

The Littelfuse Q4006NH4RP is a bidirectional triac designed for surface-mount applications. It features a TO-252-3 (DPAK) package and supports an RMS on-state current of 6 A with a rated repetitive off-state voltage of 400 V. The device operates within a temperature range of -40 °C to +125 °C. Key electrical parameters include a maximum holding current of 35 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 10 mA. It exhibits a low on-state voltage of 1.6 V and a maximum off-state leakage current of 10 µA at VDRM.

Triacs Feature Summary

• Surface-mount construction in a compact TO-252-3 package for automated assembly
• Bidirectional switching capability for AC power control applications
• Logic-level gate sensitivity enabling direct microprocessor interface

Triacs Applications

• Solid-state relays
• Lighting dimmers
• Motor speed controls

Triacs Procurement Notes

Verify the specific suffix 'H4RP' against official Littelfuse documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering quantity aligns with manufacturer minimum order requirements. Confirm that the component meets all relevant safety certifications required for the target end-use equipment before finalizing procurement.

Triacs Selection Notes

Select this component when a 6 A RMS current rating and 400 V blocking voltage are sufficient for the load. The TO-252-3 package is suitable for PCB designs requiring moderate thermal dissipation without heatsinking. Verify that the 10 mA gate trigger current matches the driving circuit's output capabilities to ensure reliable turn-on across the full operating temperature range.

Triacs Part Context

This part belongs to the Qxx06xxH series of high-temperature triacs from Littelfuse. The series is characterized by robust performance in AC power switching environments. The Q4006NH4RP variant specifically integrates the 6 A current rating with the 400 V voltage class in a surface-mount form factor, distinguishing it from through-hole or higher-current variants within the same family.

Triacs Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalents. Generic replacements must match the 6 A/400V ratings, TO-252-3 package, and logic-level gate characteristics to maintain circuit functionality.