MF-USMD110-2

Ptc Resettable Fuses Overview

The Bourns MF-USMD110-2 is a surface-mount PPTC resettable fuse from the Multifuse USMD series, designed for overcurrent protection in compact electronic circuits. It features a hold current of 1.1 A and a trip current of 2.2 A, operating at a maximum voltage of 6 VDC. The device offers a high fault current rating of up to 40 A and maintains a low resistance of 210 mOhms. Housed in a 0603 (1608 metric) package, it supports SMD/SMT installation and functions within a temperature range of -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault clearance without manual replacement
• Offers reliable overcurrent protection against short circuits and thermal damage
• Designed for space-constrained applications with a compact surface-mount footprint

Ptc Resettable Fuses Applications

• Portable consumer electronics such as mobile phones and tablets
• USB peripheral devices and data cables
• Battery packs and power management modules
• Automotive infotainment and sensor systems

Ptc Resettable Fuses Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and date codes with official Bourns documentation. Ensure the specific suffix matches the required electrical characteristics. Confirm RoHS compliance status through the latest datasheet before integration into production lines.

Ptc Resettable Fuses Selection Notes

Select this component when designing low-voltage circuits requiring rapid response to overcurrent conditions. The 1.1 A hold current suits moderate load applications, while the 6 VDC rating limits usage to low-voltage domains. Consider the 0603 package size for board density constraints and verify ambient temperature derating requirements for high-heat environments.

Ptc Resettable Fuses Part Context

This part belongs to the Multifuse USMD series, which focuses on ultra-small form factor protection. It complements larger packages like the USMF and PSMF series by providing similar functionality in a reduced footprint suitable for modern miniaturized electronics.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other Bourns USMD series variants with matching hold and trip currents. Cross-brand replacements require careful verification of voltage ratings, package dimensions, and tripping characteristics to ensure circuit compatibility.