QK010L4TP

Triacs Overview

The QK010L4TP is a bidirectional triac manufactured by Littelfuse, designed for AC power control applications. It belongs to the Qxx10xx series and features a TO-220-2 package. The device supports an RMS current of 10 A with a rated repetitive off-state voltage of 1 kV. Key electrical parameters include a holding current maximum of 35 mA, gate trigger voltage of 2.5 V, and gate trigger currents ranging from 25 mA to 50 mA. It operates within a temperature range of -40°C to +125°C, exhibits a forward on-state voltage of 1.6 V, and maintains a low off-state leakage current of 10 µA.

Triacs Feature Summary

• High-voltage capability suitable for demanding AC switching environments
• Robust thermal performance across extended industrial temperature ranges
• Standardized gate triggering characteristics for reliable circuit integration

Triacs Applications

• Industrial motor speed control systems
• Solid-state relays requiring high blocking voltage
• AC power regulation circuits in heavy equipment

Triacs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified supply chain partners. Confirm RoHS compliance status via official datasheets before procurement. Ensure packaging integrity matches specified tube quantities during receipt inspection. Validate part markings against manufacturer specifications to prevent counterfeit substitution.

Triacs Selection Notes

Select this component when applications require 1 kV blocking voltage combined with 10 A continuous current handling. Verify that gate drive circuits can supply the specified 25 mA to 50 mA trigger current range. Ensure thermal management solutions accommodate the TO-220-2 package constraints for sustained operation at elevated temperatures up to 125°C.

Triacs Part Context

This triac is part of the Qxx10xx family, which provides standardized thyristor solutions for general-purpose AC power control. The QK010L4TP variant specifically addresses higher voltage requirements compared to lower-rated siblings in the same series, maintaining consistent current handling capabilities across the lineup.

Triacs Replacement Considerations

Direct substitutes include other 1 kV, 10 A triacs in TO-220 packages from Littelfuse or compatible manufacturers. Verify pinout compatibility and thermal resistance values when considering cross-brand replacements. Ensure gate sensitivity parameters match existing drive circuit designs.