Q8012LH5

Triacs Overview

The Littelfuse Q8012LH5 is a Quadrac device from the Teccor brand, integrating a triac and a diac trigger within a single package. It operates with an on-state current of 8 A and supports voltage ratings up to 600 V. The component utilizes a TO-220 package that provides electrical isolation of 2500 V rms between leads and the mounting surface. This integration eliminates the need for discrete diacs and external snubber networks, simplifying circuit design for AC switching applications.

Triacs Feature Summary

• Integrated Triac and Diac Trigger
• High Voltage Isolation
• Snubberless Operation

Triacs Applications

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

Triacs Procurement Notes

Verify the specific suffix LH5 against official Littelfuse documentation to confirm lead-free status and RoHS compliance. Ensure the TO-220 package variant matches thermal requirements. Cross-reference datasheet parameters for gate triggering characteristics before finalizing procurement specifications.

Triacs Selection Notes

Select this component for designs requiring integrated phase control without discrete diac assembly. The TO-220 package offers superior thermal dissipation compared to smaller packages. Verify that the 2500 V rms isolation meets safety standards for the intended application environment.

Triacs Part Context

This part belongs to the QxxxxLTx series of Quadrac devices developed by Littelfuse's Teccor brand. These devices are designed to replace separate triac and diac assemblies, reducing component count and assembly time in AC power control circuits.

Triacs Replacement Considerations

Consult factory documentation for custom design variations. No public substitute part numbers are confirmed.