TRF250-180-0.125

Ptc Resettable Fuses Overview

The TRF250-180-0.125 is a POLYFUSE resettable PTC device from the TRF250 series, designed for DC circuit protection. It features a hold current of 0.18A and a trip current of 650mA, rated for up to 100VDC with a maximum fault current rating of 10 Arms. The component exhibits a typical initial resistance of 1.2 Ohms and operates within a temperature range of -40°C to +85°C. Packaged in a radial through-hole configuration, it provides reliable overcurrent protection for compact electronic applications.

Ptc Resettable Fuses Feature Summary

• Resettable polymeric positive temperature coefficient construction for automatic circuit recovery
• Radial leaded design suitable for standard through-hole PCB mounting processes
• High fault current capacity of 10 Arms for robust surge handling

Ptc Resettable Fuses Applications

• Overcurrent protection for portable consumer electronics
• Battery pack protection circuits
• Peripheral interface port safeguarding

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm exact electrical tolerances and package dimensions. Ensure the selected variant matches the required voltage and current ratings for the target application circuit. Cross-reference the part number with Littelfuse documentation to validate compliance with RoHS standards and automotive or industrial qualification requirements if applicable.

Ptc Resettable Fuses Selection Notes

Select this component based on its 0.18A hold current and 100VDC rating for low-power DC systems. Consider the radial footprint and 1.2 Ohm initial resistance for board layout constraints. Evaluate the thermal environment to ensure operation remains within the specified -40°C to +85°C range while maintaining effective trip characteristics under expected load conditions.

Ptc Resettable Fuses Part Context

This device belongs to the TRF250 family of POLYSWITCH resettable fuses by Littelfuse. The series offers compact radial packages optimized for space-constrained designs. These components provide reusable protection alternatives to traditional one-time fuses, reducing maintenance costs in accessible electronic assemblies requiring reliable overcurrent interruption.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other TRF250 series variants with matching 0.18A hold current specifications. Verify that alternative parts maintain identical 100VDC ratings and radial through-hole compatibility. Consult Littelfuse cross-reference guides for confirmed equivalent models with compatible physical dimensions and electrical performance profiles.