Q4006DH4TP

Triacs Overview

The Littelfuse Q4006DH4TP is a bidirectional triac from the Qxx06xxH series, designed for surface mount applications in TO-252-3 packages. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 6 A. Key electrical parameters include a maximum holding current (Ih) of 35 mA, gate trigger voltage (Vgt) of 1.3 V, and gate trigger current (Igt) of 10 mA. The device exhibits an on-state voltage of 1.6 V and a maximum off-state leakage current of 10 uA at VDRM. It operates within a temperature range of -40 C to +125 C and supports non-repetitive on-state currents of 55 A or 65 A.

Triacs Feature Summary

• Bidirectional switching capability with high thermal stability for robust power control
• Surface mount construction in a compact TO-252-3 package for automated assembly
• Sensitive gate triggering characteristics enabling direct interface with logic circuits

Triacs Applications

• Solid state relays requiring compact form factors
• General purpose AC power control circuits
• Lighting dimmer modules

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number Q4006DH4TP with official Littelfuse documentation. Ensure the ordering suffix matches the specified TO-252-3 SMD package configuration. Confirm RoHS compliance status through the manufacturer's latest regulatory declarations before integration into production assemblies.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 6 A continuous current rating are required in a surface mount format. The sensitive gate drive requirements must align with the available control circuit output capabilities. Consider the thermal management needs associated with the TO-252-3 package for the specific application environment.

Triacs Part Context

This device belongs to the Qxx06xxH series of bidirectional triacs manufactured by Littelfuse. The series is characterized by its suitability for general purpose power switching applications where reliable performance and standardized packaging are essential for industrial and consumer electronics designs.

Triacs Replacement Considerations

Direct substitutes within the same series include other variants sharing the 400 V and 6 A ratings but differing in package or sensitivity. Verify pinout compatibility and thermal resistance specifications when considering alternative manufacturers' equivalents.