Q4006DH3TP

Triacs Overview

The Littelfuse Q4006DH3TP is a bidirectional triac designed for AC power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (IT(RMS)) of 6 A. The device supports non-repetitive peak on-state currents of 55 A and 65 A under different pulse conditions. Key electrical parameters include a maximum on-state voltage of 1.6 V, a holding current (IH) of up to 15 mA, and gate trigger specifications of 1.3 V and 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

• Bidirectional switching capability for alternating current control circuits
• Surface-mount construction utilizing the TO-252-3 package for automated assembly
• High thermal stability supporting operation up to 125 °C junction temperature

Triacs Applications

• Solid-state relay modules requiring compact form factors
• AC motor speed control systems
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to ensure correct packaging configuration. Confirm that the 400 V voltage rating aligns with the system's peak line voltage requirements. Validate that the 6 A RMS current capacity meets the load specifications without exceeding thermal limits during continuous operation.

Triacs Selection Notes

Select this component when a 400 V blocking voltage is sufficient for the application, offering a cost-effective alternative to higher-rated devices. Ensure the PCB layout accommodates the TO-252-3 footprint and provides adequate copper area for heat dissipation given the 6 A current handling. Verify gate drive capabilities can supply the required 10 mA trigger current reliably across the operating temperature range.

Triacs Part Context

This part belongs to the Littelfuse Qxx06xxh series of triacs, which are engineered for general-purpose AC power switching. The series emphasizes reliability in industrial and consumer electronics environments. The Q4006DH3TP specifically targets applications needing moderate current handling with robust surge tolerance in a small outline package.

Triacs Replacement Considerations

Cross-reference with other 400 V, 6 A triacs in TO-252 packages from the same manufacturer family. Verify pinout compatibility and thermal resistance characteristics before substituting with components from other vendors to ensure circuit integrity.