PFRT.018.250.U

Ptc Resettable Fuses Overview

The PFRT.018.250.U is a polymeric resettable fuse manufactured by SCHURTER Inc., categorized under PTC resettable fuses. It features a radial disc package and belongs to the PFRT series. The component has a maximum voltage rating of 60V, with an internal rating of 250V. Its maximum hold current (Ih) is specified at 180 mA, while the maximum current capacity reaches 10 A. The product status for this specific part number is listed as obsolete.

Ptc Resettable Fuses Feature Summary

• Polymeric positive temperature coefficient construction for overcurrent protection
• Radial disc package configuration for through-hole mounting
• Resettable functionality eliminating the need for manual replacement after fault clearance

Ptc Resettable Fuses Applications

• Circuit protection in electronic assemblies requiring resettable overcurrent safeguarding
• Power supply input stages within low-voltage systems
• Portable electronic devices utilizing radial mounted protection components

Ptc Resettable Fuses Procurement Notes

This component is currently designated as obsolete by the manufacturer. Procurement should focus on verifying availability through secondary distributors or identifying active replacement parts from the same series. Due to its discontinued status, lead times may vary significantly, and final sourcing decisions require confirmation of stock existence and authenticity from authorized channels before commitment.

Ptc Resettable Fuses Selection Notes

Selection requires evaluating the 180 mA hold current against circuit operating limits and the 10 A maximum current for fault tolerance. The 60V maximum voltage rating dictates suitability for low-voltage DC applications only. Designers must account for the radial disc form factor during PCB layout planning. Since the part is obsolete, alternative components with similar electrical characteristics and package dimensions should be prioritized for new designs.

Ptc Resettable Fuses Part Context

The PFRT.018.250.U belongs to the PFRT series of polymeric resettable fuses produced by SCHURTER Inc. This series provides reusable overcurrent protection solutions distinct from traditional one-time fuses. The component utilizes polymer technology to increase resistance rapidly upon overheating caused by excessive current flow, thereby limiting current to safe levels until power is removed.

Ptc Resettable Fuses Replacement Considerations

As the PFRT.018.250.U is marked obsolete, direct substitution requires identifying equivalent PTC resettable fuses with matching 180 mA hold current, 60V max voltage, and radial disc packaging. Verification of trip characteristics and physical footprint compatibility is essential when selecting alternative manufacturers' parts.