FSMD035-1210-R

Ptc Resettable Fuses Overview

The FSMD035-1210-R is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse manufactured by Fuzetec Technology. Designed for the 1210 package footprint, this component provides overcurrent protection with a holding current of 3.5A and a trip current of 7.0A. It features a maximum voltage rating of 60V DC and a high fault current capacity of 100A. The device operates within a temperature range of -40°C to +85°C and complies with UL 1434 standards.

Ptc Resettable Fuses Feature Summary

• Polymeric PTC technology providing automatic reset functionality after fault clearance
• High fault current capability rated at 100A for robust circuit protection
• Compliant with UL 1434 safety standards for industrial and consumer applications

Ptc Resettable Fuses Applications

• Portable electronic devices requiring compact overcurrent protection
• Consumer electronics interfaces such as USB ports and peripheral connections
• Automotive infotainment systems and low-voltage automotive circuits

Ptc Resettable Fuses Procurement Notes

Verify that the specific order quantity meets the manufacturer's standard packaging requirements, as reel quantities may vary. Confirm that the intended operating environment remains within the specified -40°C to +85°C temperature range to ensure reliable performance. Ensure the design accounts for the derating curves provided in the datasheet when calculating the actual holding current under elevated ambient temperatures.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable protection mechanism is required for 60V DC circuits carrying up to 3.5A continuously. The 1210 form factor is suitable for space-constrained PCB layouts where through-hole components are not feasible. Consider the time-to-trip characteristics against the surge tolerance of downstream components to prevent nuisance tripping during normal startup conditions.

Ptc Resettable Fuses Part Context

This part belongs to Fuzetec's FSMD series of surface-mount resettable fuses. The series offers various current ratings and package sizes to accommodate different circuit protection needs. As a passive protection component, it serves as an alternative to traditional fuses by eliminating the need for manual replacement after an overcurrent event occurs.

Ptc Resettable Fuses Replacement Considerations

Direct replacements must match the 1210 footprint, 3.5A holding current, and 60V voltage rating. Verify that substitute parts maintain equivalent fault current ratings and thermal characteristics to ensure identical protection behavior in the final assembly.