FSMD110-24R

Ptc Resettable Fuses Overview

The FSMD110-24R is a surface-mountable PTC resettable fuse from the FSMD1812 series. It features a hold current (Ih) of 1.1 A and a trip current (It) of 2.2 A. The device supports a maximum voltage (Vmax) of 24 VDC and withstands a maximum fault current (Imax) of 100 A. Resistance values include a maximum initial resistance (Rmin) of 60 mΩ and a maximum tripped resistance (Rmax) of 200 mΩ. The component operates within a temperature range of -40°C to +85°C, with a power dissipation rating of 1 W. The physical dimensions are 4.55 mm in length, 3.24 mm in width, and 1.3 mm in height.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through self-resetting polymer positive temperature coefficient technology
• Designed for surface mount assembly on printed circuit boards
• Offers high fault current interruption capability up to 100 A

Ptc Resettable Fuses Applications

• Circuit protection in portable electronic devices
• Overcurrent safeguarding in battery management systems
• Protection for USB ports and data lines

Ptc Resettable Fuses Procurement Notes

Verify that the specific part number FSMD110-24R matches the required electrical parameters, particularly the 24 VDC voltage rating and 1.1 A hold current. Confirm the package type is 1812 and ensure the manufacturer is identified as RFE/Fuzetec or Fuzetec Technology Co., Ltd. Check datasheets for compliance certifications and operating temperature ranges before integration.

Ptc Resettable Fuses Selection Notes

Select this component when a low-profile surface mount solution is required for circuits operating at 24 VDC or lower. Ensure the application's normal operating current remains below the 1.1 A hold current threshold while accounting for ambient temperature derating. Verify that the expected fault currents do not exceed the 100 A maximum interrupt rating to prevent device failure.

Ptc Resettable Fuses Part Context

This component belongs to the FSMD1812 series of resettable fuses manufactured by Fuzetec Technology. The series utilizes polymeric PTC materials to provide reusable overcurrent protection. The FSMD110-24R variant is specifically characterized by its 1.1 A holding capacity and 24 V voltage limit, distinguishing it from other ratings within the same physical footprint family.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. When replacing, ensure the new component matches the 1812 package dimensions, 24 VDC voltage rating, and 1.1 A hold current specifications to maintain circuit integrity.