AHRF1400

Ptc Resettable Fuses Overview

The Littelfuse AHRF1400 is a radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse designed for circuit protection. It features a holding current of 14A and a trip current of 27.3A, operating at a maximum voltage of 16VDC. The device has a low initial resistance of 6.7mΩ and can withstand a maximum rated current of 100A. It operates within a temperature range of -40°C to +85°C and includes an AEC-Q200 qualification for automotive reliability.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault conditions clear
• Radial leaded package facilitates through-hole PCB mounting
• Low on-resistance minimizes power loss during normal operation

Ptc Resettable Fuses Applications

• Automotive electronics circuits requiring AEC-Q200 compliance
• Overcurrent protection in consumer electronic devices
• Battery pack protection systems
• Power supply input stages

Ptc Resettable Fuses Procurement Notes

Verify the specific datasheet revision and manufacturer lot codes upon receipt. Confirm that the component meets the required AEC-Q200 standards for your intended application environment. Ensure storage conditions comply with manufacturer guidelines to maintain material integrity before soldering.

Ptc Resettable Fuses Selection Notes

Select this component when a high holding current of 14A is required in a low-voltage 16VDC system. Consider the radial leaded form factor for applications where surface-mount alternatives are unsuitable. Evaluate the thermal environment to ensure the operating temperature remains within the specified -40°C to +85°C range for reliable performance.

Ptc Resettable Fuses Part Context

This part belongs to the AHRF series of resettable fuses from Littelfuse. These components are engineered for robust overcurrent protection in demanding environments. The series offers various current ratings while maintaining consistent physical dimensions and mounting styles for design flexibility across different product lines.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other PPTC devices with matching 14A holding current and 16VDC rating. Verify that alternative parts meet the same AEC-Q200 automotive qualification and radial leaded package specifications to ensure mechanical and electrical compatibility.