Q4030LH5

Triacs Overview

The Littelfuse Q4030LH5TP is a bidirectional triac belonging to the Qxx30xHx series, designed for high-power AC switching applications. It features a 400V repetitive peak off-state voltage and a 30A on-state current rating. The device utilizes an ISO gate structure with a sensitivity of 50-50-50 mA across all quadrants. Packaged in a TO-220-2 case, it exhibits a maximum on-state voltage of 1.4 V and a low off-state leakage current of 10 uA under VDRM conditions.

Triacs Feature Summary

• ISO gate structure ensures consistent triggering sensitivity across all four operating quadrants.

Triacs Applications

• High-power AC motor speed control systems
• Industrial heating element regulation
• Solid-state relay output stages

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm package type and compliance status. Ensure the ordering code matches the required thermal and electrical specifications for the target application environment.

Triacs Selection Notes

Select this component when a 400V blocking capability and 30A continuous load handling are required. The TO-220-2 package facilitates effective heat dissipation for high-current operations without requiring complex mounting solutions.

Triacs Part Context

This part belongs to the Qxx30xHx family of high-performance triacs from Littelfuse. These devices are engineered for robust industrial performance, offering reliable switching characteristics suitable for demanding power electronics environments.

Triacs Replacement Considerations

Consult Littelfuse datasheets for direct pin-compatible alternatives within the same voltage and current ratings. Verify that any substitute maintains the ISO gate sensitivity profile and TO-220-2 mechanical footprint.