MF-LS180

Ptc Resettable Fuses Overview

The Bourns MF-LS180 is a leaded polymeric positive temperature coefficient (PPTC) resettable fuse designed for overcurrent protection in electronic circuits. This component belongs to the MF-LS series, characterized by its axial-leaded package which facilitates through-hole mounting on printed circuit boards. It functions as a self-resetting fuse that trips when excessive current flows, providing reliable circuit safeguarding without requiring manual replacement after fault clearance.

Ptc Resettable Fuses Feature Summary

• Self-resetting functionality eliminates the need for manual fuse replacement after an overcurrent event has cleared.
• Leaded axial construction enables secure through-hole mounting on standard printed circuit boards.
• Polymeric technology provides consistent resistance characteristics and stable performance under normal operating conditions.

Ptc Resettable Fuses Applications

• Overcurrent protection for consumer electronics assemblies
• Circuit safeguarding in industrial control systems
• Protection of telecommunications equipment interfaces

Ptc Resettable Fuses Procurement Notes

Verify the specific hold current and trip current ratings against your circuit design requirements before procurement. Confirm that the axial lead spacing matches your PCB footprint specifications. Ensure the voltage rating meets or exceeds the maximum system voltage. Check for RoHS compliance status if required by your manufacturing standards. Consult the official datasheet for precise thermal derating curves.

Ptc Resettable Fuses Selection Notes

Select this component based on the steady-state current and potential fault current levels of the protected circuit. The axial lead style is suitable for applications requiring robust mechanical attachment. Consider the ambient operating temperature range to ensure proper tripping behavior. Evaluate the time-to-trip characteristics to match the sensitivity needs of the downstream components. Verify compatibility with standard reflow or wave soldering processes.

Ptc Resettable Fuses Part Context

This part is part of Bourns' broader portfolio of circuit protection devices, specifically within the PPTC resettable fuse category. The MF-LS series offers various current ratings and package options to suit different design constraints. These components are engineered to provide cost-effective alternatives to traditional one-time fuses in applications where automatic recovery is beneficial.

Ptc Resettable Fuses Replacement Considerations

When replacing this component, ensure the substitute part matches the hold current, trip current, and voltage ratings. Verify that the leaded axial package dimensions are compatible with the existing PCB layout. Confirm that the new component meets the same safety certifications and environmental standards as the original part.