QK010R5

Triacs Overview

The Littelfuse QK010R5 is a bidirectional triac belonging to the Qxx10xx series, designed for power control applications. It features an RMS on-state current (It RMS) of 10 A and supports non-repetitive peak on-state currents of 100 A and 120 A. The device has a rated repetitive off-state voltage (VDRM) of 800 V with a maximum off-state leakage current of 10 uA at VDRM. Key electrical parameters include an on-state voltage of 1.6 V, a maximum holding current (Ih) of 50 mA, a gate trigger voltage (Vgt) of 2.5 V, and gate trigger currents ranging from 50 mA to 75 mA. It operates within a temperature range of -40 C to +125 C.

Triacs Feature Summary

• Bidirectional switching capability for AC power control circuits
• High voltage blocking rating suitable for mains-level applications
• Robust thermal performance across extended industrial temperature ranges

Triacs Applications

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

Triacs Procurement Notes

Verify the exact suffix against official Littelfuse documentation to confirm pinout and package variations. Ensure compatibility with existing PCB footprints before ordering. Confirm RoHS compliance status through the manufacturer's latest datasheet or environmental declaration files.

Triacs Selection Notes

Select this component when an 800 V blocking voltage and 10 A continuous current are required in a through-hole configuration. Compare gate trigger sensitivity requirements against the specified 50-75 mA range. Evaluate thermal management needs based on the TO-220-2 package heat dissipation characteristics.

Triacs Part Context

This part belongs to the Qxx10xx family of high-power triacs manufactured by Littelfuse. The series provides standardized electrical characteristics for industrial power switching. The 'Q' prefix typically denotes specific thyristor technologies optimized for reliability in demanding environments.

Triacs Replacement Considerations

Check for direct equivalents such as the QK010N5TP or Q8010R5TP if package or voltage ratings differ. Verify that substitute parts meet the same 10 A RMS and 800 V VDRM specifications.