QK006DH4

Triacs Overview

The Littelfuse QK006DH4 is an Alternistor TRIAC housed in a TO-252 (DPAK-3) surface-mount package. It features a rated repetitive off-state voltage of 600 V and an on-state RMS current of 6 A. The device supports a non-repetitive peak on-state current of 80 A with a maximum on-state voltage of 1.6 V. Gate triggering parameters include a maximum DC gate trigger voltage of 1.3 V and a maximum DC gate trigger current of 35 mA. The component operates within a temperature range of -40°C to +125°C, ensuring reliability for industrial power control applications.

Triacs Feature Summary

• Alternistor architecture providing enhanced turn-off behavior compared to standard TRIACs
• Dual electrically separate SCR structures for improved dv/dt characteristics
• Glass-passivated junctions for long-term parameter stability and contamination resistance

Triacs Applications

• Switching highly inductive loads
• Industrial AC power control circuits
• Solid-state relay designs

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact electrical tolerances and packaging variations. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer before finalizing procurement plans.

Triacs Selection Notes

Select this component when high dv/dt immunity and reliable turn-off are required for inductive loads. Ensure the 600V rating exceeds the peak line voltage and that the TO-252 thermal management meets the application's dissipation requirements.

Triacs Part Context

This part belongs to the Qxx06xxH series of Alternistors from Littelfuse. These devices utilize a unique chip construction offering performance equivalent to inverse parallel SCRs while maintaining single-chip advantages. The series covers various voltage ratings up to 1000V.

Triacs Replacement Considerations

Consider the QK006DH4RP for reel-packaged versions or the Q6006DH4RP as a direct alternative within the same family. Verify pinout compatibility and thermal characteristics when substituting.