MF-NSMF050-2

Ptc Resettable Fuses Overview

The Bourns MF-NSMF050-2 is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse from the MF-NSMF series. It features a 1812 package size with dimensions of 4.5mm x 3.2mm x 0.85mm. The device has a hold current of 0.5A and a trip current of 1A at 25°C. It supports a maximum voltage of 13.2VDC and offers a maximum fault current rating of 100A. Typical resistance is 0.15Ω minimum to 0.7Ω maximum. Operating temperature ranges from -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic resistance increase upon thermal activation
• Designed for surface-mount assembly using standard SMD/SMT placement techniques
• Offers repeated service capability by resetting automatically after fault clearance and cooling

Ptc Resettable Fuses Applications

• Portable electronic devices requiring compact circuit protection
• Consumer electronics circuits needing high-reliability overcurrent safeguards
• Automotive infotainment and control modules utilizing AEC-Q100 compliant components

Ptc Resettable Fuses Procurement Notes

Verify component authenticity against official Bourns documentation before integration. Confirm that the specific suffix matches project requirements, as variations may exist within the same series. Ensure storage conditions maintain integrity prior to soldering. Cross-reference datasheet revisions to confirm updated electrical characteristics and mechanical tolerances for final design validation.

Ptc Resettable Fuses Selection Notes

Select this component when space constraints require an 1812 footprint PTC device. Choose based on the 0.5A hold current requirement and 13.2VDC system voltage. Consider the 100A maximum fault current rating for robust surge handling. Evaluate thermal management needs given the -40°C to +85°C operating range and typical resistance values for power dissipation calculations in dense PCB layouts.

Ptc Resettable Fuses Part Context

This part belongs to the MF-NSMF series of high-density resettable fuses. It complements other Bourns PPTC solutions like the MF-SM and MF-USMF families. The series targets applications demanding small form factors without sacrificing fault current capacity. It serves as a protective element alongside capacitors, resistors, and integrated circuits in modern electronic assemblies.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing footprints and electrical parameters if considering alternative manufacturers. Consult official Bourns resources for potential cross-reference data or updated series replacements.