Q4010LH5TP

Triacs Overview

The Q4010LH5TP is a bidirectional triac manufactured by Littelfuse, belonging to the Qxx10xHx series. It features a TO-220-2 package and operates with a maximum repetitive peak off-state voltage (VDRM) of 400V. The device supports an on-state RMS current (IT(RMS)) of 10A. Key electrical parameters include a gate trigger current range of 50mA to 50mA, a holding current of 50mA, and a latching current of 50mA. The on-state voltage (VTM) is specified at 1.6V, while the off-state leakage current (IDRM) is limited to 10µA. This component is designed for AC switching applications requiring robust performance in phase control circuits.

Triacs Feature Summary

• Integrated diac trigger mechanism within the same package as the triac
• Eliminates the need for external snubber networks
• Electrically isolated mounting surface rated at 2500V rms

Triacs Applications

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

Triacs Procurement Notes

Verify the specific suffix 'H5' against the official Littelfuse datasheet to confirm the exact gate trigger characteristics and thermal ratings. Ensure the TO-220-2 package configuration matches the PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement specifications.

Triacs Selection Notes

Select this component when an integrated Quadrac solution is required to simplify assembly and reduce component count. The built-in diac trigger removes the need for discrete diac selection. Consider the 2500V rms isolation capability if direct mounting to a heatsink is necessary without additional insulators. Verify that the 400V voltage rating meets the circuit's peak off-state voltage requirements.

Triacs Part Context

The Q4010LH5TP belongs to the Teccor brand Quadrac family developed by Littelfuse. These devices combine a triac and a diac trigger in a single TO-220 package. The series is designed to save assembly time and cost compared to using separate discrete components. The Qxx10xHx series specifically targets applications needing reliable AC switching with enhanced noise immunity.

Triacs Replacement Considerations

Check for other parts in the QxxxxLTx series with compatible voltage and current ratings. Verify pinout compatibility for TO-220-2 packages. Ensure any substitute maintains the integrated diac trigger functionality and similar isolation ratings.