MF-PSMF075X-2

Ptc Resettable Fuses Overview

The MF-PSMF075X-2 is a surface-mount polymer positive temperature coefficient (PPTC) resettable fuse from the Bourns Multifuse series. It provides overcurrent protection in a compact 0805 package with dimensions of 2.3 mm length, 1.5 mm width, and 1.25 mm height. The device features a holding current of 750 mA and a trip current of 1.5 A at 23°C. It supports a maximum voltage of 6 VDC and a maximum fault current of 40 A. Typical resistance is 200 mOhms, with a power dissipation rating of 600 mW. It operates within a temperature range of -40°C to +85°C and holds AEC-Q200 qualification.

Ptc Resettable Fuses Feature Summary

• Utilizes polymer composite technology that transitions to high resistance during overload conditions to limit current flow.
• Automatically resets to low resistance state after cooling, eliminating the need for manual replacement.
• Designed for surface mount assembly to facilitate automated manufacturing processes.
• Qualified for automotive applications under AEC-Q200 standards.

Ptc Resettable Fuses Applications

• Automotive electronics and wire harness protection
• Communication equipment such as user terminals and switchboards
• Consumer electronic devices requiring compact circuit protection
• Industrial control systems and instrumentation

Ptc Resettable Fuses Procurement Notes

Verify component authenticity through authorized Bourns distributors or certified partners. Confirm that the received parts match the specific ordering code MF-PSMF075X-2, including suffix designations for packaging format. Ensure storage conditions comply with manufacturer guidelines to maintain material integrity prior to soldering.

Ptc Resettable Fuses Selection Notes

Select this component when space-constrained designs require an 0805 footprint PTC fuse. Choose based on the 750 mA holding current requirement and 6 VDC system voltage. Consider the 40 A maximum fault current capability for short-circuit scenarios. Verify thermal environment compatibility with the specified operating temperature range.

Ptc Resettable Fuses Part Context

This part belongs to the MF-PSMF series of Multifuse resettable fuses. The series offers various hold currents and voltage ratings in standard SMD packages. The PSMF designation indicates specific performance characteristics tailored for general-purpose and automotive circuit protection applications.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other Bourns MF-PSMF series variants with matching electrical parameters. Cross-reference alternative manufacturers' 0805 PPTC fuses only if they meet identical voltage, current, and thermal specifications.