MF-SM260-2

Overview

The Bourns MF-SM260-2 is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse designed for automated assembly. It belongs to the Multifuse SMD Low Ohmic series, featuring an 1812 package with a maximum height of 0.85 mm. The component provides overcurrent protection with a hold current of 2.6 A and a trip current of 5.2 A at a maximum voltage of 12 VDC. It operates within a temperature range of -40°C to +85°C and dissipates up to 800 mW. The device offers low resistance characteristics suitable for compact circuit layouts.

Feature Summary

• Provides automatic circuit interruption upon overcurrent conditions without requiring replacement
• Utilizes polymer PTC technology for robust protection in high-voltage and high-temperature environments
• Features surface-mount packaging optimized for automated PCB assembly processes

Applications

• Automotive circuit protection systems
• Consumer electronics power input lines
• Industrial equipment surge protection
• Telecommunication infrastructure circuits

Procurement Notes

Verify the specific suffix designation against official Bourns documentation to confirm exact electrical ratings and packaging configurations. Ensure compatibility with standard reflow soldering profiles and check for RoHS compliance status prior to integration into production designs.

Selection Notes

Select this component when space-constrained designs require low-profile overcurrent protection. Consider the 1812 footprint and 0.85 mm height for board real estate optimization. Evaluate thermal dissipation requirements relative to the 800 mW power rating and ambient operating conditions.

Part Context

This part is part of the Bourns Multifuse family, which specializes in polymer-based resettable fuses. The series is engineered to replace traditional fusible links, offering reusable protection that reduces maintenance costs and system downtime compared to single-use components.

Replacement Considerations

Direct substitutes include other MF-SM series variants with matching hold currents and voltage ratings. Verify package dimensions and lead-free solder compatibility when cross-referencing with equivalent products from alternative manufacturers.