MF-NSML175/12-2

Ptc Resettable Fuses Overview

The Bourns MF-NSML175/12-2 is a Multifuse PPTC resettable fuse from the NSML series, designed for surface mount applications. It features a 1206 package size with dimensions of 3.2mm x 1.6mm x 1.1mm. The device has a rated voltage of 30V and a hold current of 1.75A. Trip current is specified at 3.5A with a trip time of 0.2 seconds. Resistance ranges from 0.04Ω to 0.08Ω. Operating temperature spans -40°C to 85°C. Power dissipation is 0.6W. End terminals are nickel-plated copper with gold flash. Certifications include UL and RoHS.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through polymer positive temperature coefficient (PPTC) technology
• Offers high reliability in harsh environments with elevated voltage and temperature tolerance
• Enables space-saving surface mount design compared to traditional radial lead components

Ptc Resettable Fuses Applications

• Automotive circuit protection
• High-reliability electronic equipment surge protection
• Industrial transportation systems
• Communication infrastructure safety systems
• Consumer electronics robust fault protection

Ptc Resettable Fuses Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package orientation and terminal plating integrity upon receipt. Ensure storage conditions maintain moisture sensitivity levels as defined in the handling guidelines. Cross-reference ordering suffixes to confirm exact electrical ratings and certification status before integration into production lines.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection requires a 1.75A hold current within a compact 1206 footprint. Evaluate thermal management requirements to ensure operation remains within the -40°C to 85°C range. Consider the low resistance profile for minimal power loss in high-current paths. Verify that the 30V rating aligns with the maximum circuit voltage to prevent dielectric breakdown during fault conditions.

Ptc Resettable Fuses Part Context

This part belongs to the Multifuse NSML series, which focuses on low ohmic performance for high-current applications. The series utilizes advanced polymer PTC materials to deliver robust protection against short circuits and overloads. It represents an evolution in surface mount circuit protection, offering improved durability and faster response times compared to earlier generations of resettable fuses.

Ptc Resettable Fuses Replacement Considerations

Consult official Bourns substitution guides for direct replacements. Verify that alternative parts match the 1206 package dimensions and 1.75A hold current rating. Ensure equivalent certifications such as UL and RoHS compliance are maintained. Check thermal characteristics and resistance values to guarantee circuit compatibility without redesigning the PCB layout.

Ptc Resettable Fuses FAQ

What is the typical resistance value of the MF-NSML175/12-2?

The typical resistance is approximately 0.06Ω, with a maximum initial resistance of 0.08Ω.

Does this component require manual replacement after tripping?

No, it is a resettable fuse that automatically returns to a low-resistance state once the fault condition is removed and the device cools down.