QK016LH6TP

Triacs Overview

The Littelfuse QK016LH6TP is a resettable fuse, specifically a PolySwitch PPTC device, designed for overcurrent protection in electronic circuits. It features a hold current of 16A and a trip current of 32A at 25°C. The device operates with a maximum voltage rating of 6V DC and can withstand a maximum fault current of 100A. Its resistance in the low state is typically 1.8 milliohms, rising significantly upon tripping to limit current flow. The component is housed in a surface-mount package suitable for automated assembly processes.

Triacs Feature Summary

• Provides automatic circuit recovery after fault conditions are cleared without manual replacement
• Offers dual-mode protection against both overcurrent and excessive temperature events
• Designed for compact surface-mount integration into high-current power distribution networks

Triacs Applications

• Portable computing devices requiring battery protection
• Consumer electronics with USB power input ports
• Automotive infotainment systems and sensor modules

Triacs Procurement Notes

Verify the specific suffix codes on the datasheet to confirm lead-free compliance and tape-and-reel packaging specifications. Ensure the selected variant matches the required hold current tolerance and operating temperature range for your specific design environment. Cross-reference the manufacturer's latest documentation to confirm availability and any recent design changes.

Triacs Selection Notes

Select this component based on the circuit's normal operating current being below the 16A hold current threshold. Ensure the maximum system voltage does not exceed the 6V DC rating. Consider the ambient temperature conditions, as higher temperatures will reduce the effective hold current capability. Verify that the physical footprint aligns with the PCB layout constraints for the specified surface-mount package.

Triacs Part Context

This part belongs to Littelfuse's QK series of resettable fuses, which are engineered for high-current applications. The series is characterized by low resistance and fast response times, making it suitable for protecting sensitive downstream components from surge currents. It serves as a reusable alternative to traditional one-time fusible links in modern electronic assemblies.

Triacs Replacement Considerations

Direct replacements must match the 16A hold current, 6V rating, and similar physical dimensions. Verify that substitute parts maintain comparable trip characteristics and thermal performance. Consult the manufacturer's substitution guide for approved equivalents that meet the same safety certifications and electrical specifications.