Q8006DH4

Triacs Overview

The Littelfuse Q8006DH4TP is a bidirectional triac (alternistor) from the Qxx06xxH series, rated for 800 V repetitive peak off-state voltage and 6 A RMS on-state current. It features a maximum non-repetitive peak on-state current of 85 A, an on-state voltage of 1.6 V, and a gate trigger current of 35 mA. The device operates within a temperature range of -40°C to +125°C and is housed in a TO-251-3 (DPAK) through-hole package.

Triacs Feature Summary

• Alternistor technology eliminates the need for external snubber networks
• High noise immunity suitable for demanding AC switching environments
• Glass-passivated junctions ensure long-term parameter stability

Triacs Applications

• AC motor speed controls
• Lighting dimmer circuits
• Temperature modulation controls

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout configuration and thermal characteristics. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the Littelfuse part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Triacs Selection Notes

Select this component when designing AC phase control circuits requiring high dv/dt noise immunity without snubber components. Verify that the 6A RMS rating accommodates the load current and that the 800V blocking voltage exceeds the peak line voltage. Confirm the TO-251-3 package fits the PCB footprint and thermal management constraints of the design.

Triacs Part Context

This device belongs to the Littelfuse Teccor Qxx06xxH series of alternistors. These devices integrate triac functionality with internal diac triggering, simplifying circuit design by removing discrete trigger components. The series is engineered for robust performance in residential and industrial AC power control applications.

Triacs Replacement Considerations

Consult Littelfuse documentation for direct replacements within the Qxx06xxH family. Verify equivalent ratings for VDRM, IT(RMS), and package type before substitution.