Q4006RH4TP

Triacs Overview

The Q4006RH4TP is a bidirectional triac manufactured by Littelfuse, designed for AC power control applications. It features a rated repetitive peak off-state voltage (VDRM) of 400 V and an RMS on-state current (IT(RMS)) of 6 A. The device exhibits a low on-state voltage of 1.6 V and a maximum holding current of 35 mA. Gate triggering requirements are specified with a gate trigger voltage (VGT) of 1.3 V and a gate trigger current (IGT) of 10 mA. It operates within a temperature range of -40°C to +125°C and is housed in a TO-252-3 surface-mount package.

Triacs Feature Summary

• High thermal stability supporting operation up to +125°C
• Low on-state voltage for improved efficiency
• Robust gate triggering characteristics

Triacs Applications

• AC motor speed control
• Solid-state relays
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix H4TP against official Littelfuse documentation to confirm pinout and packaging details. Ensure compatibility with surface-mount assembly processes given the TO-252-3 form factor. Cross-reference datasheet revisions to confirm compliance with current environmental standards such as RoHS and REACH before finalizing procurement orders.

Triacs Selection Notes

Select this component when a 6 A RMS current rating at 400 V is required in a compact surface-mount footprint. Compare IT(RMS) capabilities against load requirements to ensure adequate margin. Evaluate the TO-252-3 package thermal performance relative to the application's heat dissipation needs versus through-hole alternatives like the TO-220-2.

Triacs Part Context

This part belongs to the Qxx06xxHx series of Littelfuse triacs, which are engineered for general-purpose AC switching. The series offers various current ratings and voltage classes, with the Q4006RH4TP specifically providing a balance of moderate current handling and high voltage blocking in a SMD format suitable for automated PCB assembly.

Triacs Replacement Considerations

Direct replacements include other 6 A, 400 V triacs in TO-252-3 packages from Littelfuse or competitors, provided pinouts and electrical parameters match. Verify that substitute devices meet the same gate sensitivity and thermal specifications.