QK006DH4TP

Triacs Overview

The Littelfuse QK006DH4TP is a bidirectional TRIAC (Alternistor) designed for high-voltage switching applications. It features a 1 kV rated repetitive off-state voltage and conducts a continuous on-state RMS current of 6 A. The device utilizes a TO-252 surface-mount package, facilitating automated assembly in compact designs. Key electrical characteristics include a maximum holding current of 35 mA and a gate trigger current of 35 mA. It exhibits an on-state voltage of 1.6 V and a non-repetitive peak surge current capability of 85 A. The component operates within a temperature range starting from -40°C, ensuring reliability in demanding environments.

Triacs Feature Summary

• High voltage blocking capability suitable for mains-connected loads
• Surface-mount construction for efficient PCB integration
• Sensitive gate drive requirements for direct microprocessor interfacing

Triacs Applications

• Solid-state relay modules
• Lighting control systems
• Motor speed control circuits

Triacs Procurement Notes

Verify the specific manufacturer part number against official Littelfuse documentation to ensure authenticity. Confirm that the requested quantity meets the minimum order requirements defined by authorized distributors. Check for RoHS compliance status and any relevant REACH SVHC declarations prior to finalizing procurement orders.

Triacs Selection Notes

Select this component when a 1 kV voltage rating is required for AC load switching. Ensure the circuit design accommodates the 6 A RMS current limit and the 85 A surge capacity. Verify that the TO-252 package dimensions fit the available board space and that the thermal management strategy supports the junction temperature limits specified in the datasheet.

Triacs Part Context

This part belongs to the Qxx06xxH series of Alternistors from Littelfuse. These devices are engineered as robust replacements for traditional discrete TRIACs in high-reliability applications. The series emphasizes improved commutation capabilities and ruggedness compared to standard thyristor technologies.

Triacs Replacement Considerations

Direct substitutes must match the 1 kV voltage rating, 6 A current rating, and TO-252 package. Verify pinout compatibility and gate sensitivity parameters before implementing any cross-brand replacement.