LTP300F

Ptc Resettable Fuses Overview

The LTP300F is a Polymeric PTC Resettable Fuse from the Littelfuse Polyswitch series, designed for surface-mount PCB applications. It features a strap-style package configuration with SMD/SMT termination. The component operates within a temperature range of -40°C to +85°C and holds RoHS compliance. Key electrical specifications include a maximum voltage rating of 24 VDC, a hold current of 3 A, a trip current of 6 A, and a maximum rated current of 40 A. The device exhibits a typical resistance of 72 mΩ.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic reset functionality upon fault clearance.
• Utilizes a strap-style package design optimized for direct PCB mounting.
• Ensures circuit integrity by limiting excessive current flow without permanent damage.

Ptc Resettable Fuses Applications

• Portable electronic devices requiring compact overcurrent protection
• Consumer electronics circuits needing resettable fuse solutions
• Industrial control boards utilizing surface-mount components

Ptc Resettable Fuses Procurement Notes

Verify the specific manufacturer designation as Littelfuse Inc. or Hamlin/Littelfuse when sourcing, as legacy naming conventions may appear in distributor catalogs. Confirm RoHS compliance status explicitly, as some records indicate varying compliance levels. Ensure the strap package style matches the target PCB footprint requirements before ordering.

Ptc Resettable Fuses Selection Notes

Select this component for applications requiring a 3 A hold current and 24 VDC maximum voltage rating. The strap package offers distinct mechanical advantages compared to standard rectangular SMD fuses. Consider the 72 mΩ resistance value for thermal management calculations in dense circuit layouts.

Ptc Resettable Fuses Part Context

This part belongs to the Polyswitch family of self-recovery fuses, which utilize polymer technology to provide reliable circuit protection. The LTP300F specifically addresses needs for higher current handling in space-constrained designs through its unique strap form factor.

Ptc Resettable Fuses Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing footprints if considering alternative manufacturers.