AHRF650

Ptc Resettable Fuses Overview

The Littelfuse AHRF650 is a radial-leaded PolySwitch resettable PPTC fuse designed for overcurrent protection. It features a hold current of 6.5 A and a trip current of 13 A, with a maximum voltage rating of 16 VDC. The device has a maximum rated current of 50 A and a typical resistance of 15 mΩ. It operates within a temperature range of -40°C to +125°C and includes an AEC-Q200 qualification.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection for circuits and wiring harnesses
• Automotive-grade reliability with AEC-Q200 qualification
• Radial leaded package facilitates PCB mounting
• Solid-state design eliminates need for replacement after fault

Ptc Resettable Fuses Applications

• Automotive circuit protection
• Wiring harness overcurrent safeguarding
• PCB component protection in automotive electronics

Ptc Resettable Fuses Procurement Notes

Verify the specific Littelfuse datasheet for the AHRF650 to confirm exact electrical parameters and mechanical dimensions. Ensure the selected variant meets the required AEC-Q200 automotive qualification standards. Cross-reference the hold and trip currents against the target application's operational limits to guarantee proper circuit protection performance.

Ptc Resettable Fuses Selection Notes

Select this component when a radial-leaded, automotive-qualified resettable fuse is required. The 6.5 A hold current suits moderate current applications. Verify that the 16 VDC maximum voltage rating aligns with the system supply. Consider the 15 mΩ resistance impact on power loss if efficiency is critical.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse PolySwitch family of resettable fuses. These devices utilize polymer positive temperature coefficient technology to limit current during faults. The AHRF650 specifically targets automotive and industrial applications requiring robust, reusable overcurrent protection solutions.

Ptc Resettable Fuses Replacement Considerations

Check for direct cross-reference models within the same Littelfuse AHRL or AHR series that match the 6.5 A hold current and 16 VDC rating. Ensure any substitute maintains AEC-Q200 certification and radial lead spacing compatibility.