Q4010RH5

Triacs Overview

The Littelfuse Q4010RH5 is a bidirectional triac belonging to the Qxx10xHx series, designed for power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (IT(RMS)) of 10 A. The device exhibits a maximum holding current of 50 mA and a gate trigger current of 50 mA. Key electrical characteristics include a maximum on-state voltage of 1.6 V and a low off-state leakage current of 10 uA under specified conditions. The component is housed in a TO-220-2 package, suitable for through-hole mounting.

Triacs Feature Summary

• High current handling capability with 10 A RMS rating
• Robust voltage blocking up to 400 V
• Low conduction loss indicated by 1.6 V on-state voltage
• Sensitive gate drive requirements at 50 mA

Triacs Applications

• AC motor speed control circuits
• Solid state relay designs
• Lighting dimmer implementations

Triacs Procurement Notes

Verify the specific suffix RH5 against official Littelfuse documentation to confirm pinout configuration and thermal characteristics. Ensure the procurement channel provides valid traceability for the Qxx10xHx series components. Cross-reference datasheet revisions to match design requirements precisely.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 10 A continuous current are required in a TO-220-2 form factor. Compare the 1.6 V on-state voltage against alternative thyristors to evaluate conduction losses. Confirm that the 50 mA gate trigger current aligns with the available driver circuit capabilities.

Triacs Part Context

This part belongs to the Littelfuse Qxx10xHx family of high-power triacs. The series is engineered for industrial and consumer AC power switching. The Q4010RH5 variant specifically targets applications needing reliable phase control within the 400 V and 10 A operational envelope.

Triacs Replacement Considerations

Consult Littelfuse substitution guides for equivalent triacs with matching VDRM and IT(RMS) ratings. Verify pin compatibility before replacing existing assemblies with similar devices from other manufacturers.