FSMD110-16-1210R

Ptc Resettable Fuses Overview

The FSMD110-16-1210R is a polymeric positive temperature coefficient (PTC) resettable fuse manufactured by RFE/Fuzetec. It features a surface mount package in the 1210 (3225 Metric) size with a concave profile. The device is rated for a maximum voltage of 16V and offers a hold current of 1.1A. Key electrical specifications include a trip current of 2.2A, a minimum resistance of 0.08 Ohms, and a maximum post-trip resistance of 0.18 Ohms. The component operates within a temperature range of -40°C to +85°C and is designed for circuit protection applications requiring fast response times.

Ptc Resettable Fuses Feature Summary

• Polymeric PTC technology providing automatic reset capability after fault clearance
• Surface mountable design optimized for automated assembly processes
• Concave body profile facilitating stable placement on printed circuit boards

Ptc Resettable Fuses Applications

• Telecommunications equipment circuit protection
• Portable electronic device overcurrent safeguarding
• Consumer electronics power line protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix '1210R' confirms the 1210 package and concave shape. Ensure the 16V rating aligns with your system's maximum operating voltage. Confirm the 1.1A hold current meets your circuit's continuous load requirements without nuisance tripping. Check datasheet revisions for any updates to thermal or electrical characteristics before final integration.

Ptc Resettable Fuses Selection Notes

Select this component when space constraints require a 1210 footprint but higher current capacity than 1206 packages offer. The 16V rating suits low-voltage digital logic and communication interfaces. Consider the concave profile if board warpage is a concern during reflow soldering. Compare trip times against other series variants if faster protection is critical for sensitive downstream components.

Ptc Resettable Fuses Part Context

This part belongs to the FSMD110 series of surface mount PTC fuses from Fuzetec Technology Co., Ltd. The series provides various hold currents and voltage ratings across different package sizes including 1206 and 1210. The FSMD110-16-1210R specifically targets applications needing robust overcurrent protection in compact consumer and telecom devices where resettable functionality reduces maintenance costs.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 1210 package, 16V max voltage, and ~1.1A hold current. Verify that alternative PTCs have comparable post-trip resistance to avoid excessive voltage drop. Ensure replacement parts support the same operating temperature range of -40°C to +85°C. Cross-reference datasheets for mechanical dimensions to confirm compatibility with existing PCB land patterns.