Q8006LH4

Triacs Overview

The Littelfuse Q8006LH4 is an Alternistor TRIAC from the Qxx06xxh series, rated for 800V repetitive off-state voltage and 6A RMS on-state current. It features a non-repetitive peak on-state current of 85A and a maximum holding current of 35mA. The device exhibits a typical on-state voltage of 1.6V with a gate trigger voltage of 1.3V and gate trigger current of 35mA. Off-state leakage current is limited to 10µA at VDRM. This component is housed in an isolated TO-220AB package.

Triacs Feature Summary

• Bidirectional AC switching capability with noise immunity
• Electrically isolated mounting surface for simplified installation
• Glass-passivated junctions for parameter stability

Triacs Applications

• AC speed controls
• Temperature modulation controls
• Lighting controls requiring noise immunity

Triacs Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm package isolation and compliance status. Ensure the ordering part number matches the required electrical ratings and physical dimensions for the target circuit design.

Triacs Selection Notes

Select this component for applications requiring bidirectional phase control with high dv/dt immunity. Confirm that the 6A RMS current rating and 800V blocking voltage align with the load requirements and system voltage levels.

Triacs Part Context

This device belongs to the Qxx06xxh Alternistor series by Littelfuse. These devices integrate triac functionality with internal diac triggering, eliminating the need for external snubber networks or discrete diacs in many phase control circuits.

Triacs Replacement Considerations

Q8006LH4TP and Q8006LH4TP56 are listed as compatible variants within the same series. Verify pinout compatibility and thermal characteristics before substitution.