Q4015LTHTP

Triacs Overview

The Q4015LTHTP is a bidirectional triac from the Teccor QxxxxLTx series, manufactured by Littelfuse. It features a 400V repetitive peak off-state voltage and an RMS on-state current of 15A. The device utilizes a TO-220-2 package with electrical isolation rated at 2500V rms between leads and the mounting surface. Key electrical parameters include a gate breakover voltage range of 33V to 43V, a maximum off-state leakage current of 10µA, and an on-state voltage of 1.6V. The component is designed for AC switching applications requiring noise immunity.

Triacs Feature Summary

• Integrated Quadrac design combining a triac and diac trigger within a single package to simplify assembly
• Alternistor technology that eliminates the need for external snubber networks
• Glass-passivated junctions to ensure long-term device reliability and parameter stability

Triacs Applications

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

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout configuration and thermal characteristics. Ensure the selected variant matches the required voltage and current ratings for the target circuit design before finalizing procurement.

Triacs Selection Notes

Select this component for applications requiring integrated phase control without discrete diacs. The TO-220-2 package provides robust thermal management and high isolation voltage. Confirm that the 15A current rating and 400V blocking capability align with the system's operational requirements.

Triacs Part Context

This part belongs to the Teccor QxxxxLTx series of Quadrac devices. These components are engineered to replace separate triac and diac assemblies, reducing board space and assembly costs. The series offers various current and voltage ratings in standardized packages for industrial power control.

Triacs Replacement Considerations

Consult Littelfuse technical support for verified substitute part numbers. Cross-referencing requires matching the 15A current, 400V voltage, TO-220-2 package, and Alternistor functionality to ensure equivalent performance.