AHRF450S-1

$0.82

Description：PTC RESET FUSE 16V 4.5A RADIAL
Series：PolySwitch®, AHRF
Mfr：Littelfuse Inc.
Package：Bag

SKU:529ca48eb05c Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

AHRF450S-1 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 16V 4.5A RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for AHRF450S-1

Description：PTC RESET FUSE 16V 4.5A RADIAL
Series：PolySwitch®, AHRF
Mfr：Littelfuse Inc.
Package：Bag
Type：Polymeric
Voltage - Max：16V
Current - Hold (Ih) (Max)：4.5 A
Current - Trip (It)：8.7 A
Current - Max：100 A
Time to Trip：4 s
Resistance - Initial (Ri) (Min)：17 mOhms
Resistance - Post Trip (R1) (Max)：54 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 125°C
Grade：Automotive
Qualification：AEC-Q200
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.409" Dia x 0.122" T (10.40mm x 3.10mm)
Height - Seated (Max)：0.563" (14.30mm)
Thickness (Max)：-
Lead Spacing：0.199" (5.05mm)

Ptc Resettable Fuses datasheet and documents for AHRF450S-1

AHRF450S-1

Ptc Resettable Fuses Overview

The Littelfuse AHRF450S-1 is a polymeric PTC resettable fuse from the AHRF series, designed for automotive applications. It features a 16 VDC maximum voltage rating and a 4.5 A hold current. The device trips at 9 A and offers a maximum fault current rating of 50 A. Its initial resistance is 26 mOhms. Operating temperatures range from -40°C to +125°C. The component utilizes radial leads with a 5.8 mm spacing and measures 3 mm in width.

Ptc Resettable Fuses Feature Summary

Polymeric positive temperature coefficient (PPTC) resettable fuse technology
Designed specifically for high-temperature automotive environments
Lead-free construction compliant with environmental standards

Ptc Resettable Fuses Applications

Automotive circuit protection
Overcurrent protection for electronic modules
Power supply input protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm availability status. Confirm that the requested variant matches the required lead configuration and package dimensions. Ensure the component meets the necessary automotive qualification standards for the intended application environment.

Ptc Resettable Fuses Selection Notes

Select this component when a 16V system requires overcurrent protection with a 4.5A continuous load capacity. Consider the 26 mOhms resistance for power loss calculations. Verify thermal management requirements given the +125°C maximum operating temperature limit.

Ptc Resettable Fuses Part Context

This part belongs to the AHRF series of radial leaded PPTC devices. These components are engineered for robust performance in demanding automotive electrical systems. The series provides reliable resettable protection against short circuits and overloads.