FSMD400-16-2920R

Ptc Resettable Fuses Overview

The FSMD400-16-2920R is a surface-mountable PTC resettable fuse from the FSMD2920 series. It features a maximum voltage rating of 16V and a trip current (It) of 8A. The device has a maximum post-trip resistance (R1) of 40 mOhms and a minimum initial resistance (Ri) of unspecified low value. The component utilizes a 2920 (7351 Metric) concave footprint with a maximum thickness of 1.50mm. It is RoHS compliant and halogen-free, designed for high-density circuit protection applications.

Ptc Resettable Fuses Feature Summary

• Surface mountable construction utilizing a 2920 concave footprint for high-density PCB integration
• Positive temperature coefficient polymer technology providing automatic reset functionality after fault clearance
• RoHS compliant and halogen-free manufacturing process ensuring environmental safety standards

Ptc Resettable Fuses Applications

• High-density electronic circuit protection
• Battery pack interconnect strap protection
• Portable device overcurrent safeguarding

Ptc Resettable Fuses Procurement Notes

Verify the specific hold current (Ih) rating against system requirements, as datasheet references vary between 4A and 5A for similar part numbers. Confirm the package orientation matches the concave footprint specification. Ensure compatibility with reflow soldering profiles specified in the official Fuzetec documentation to maintain device integrity.

Ptc Resettable Fuses Selection Notes

Select this component when a 16V maximum voltage rating and 8A trip current are required for space-constrained designs. The 2920 size offers a balance between current handling capability and board area efficiency. Consider the concave profile for specialized mounting needs. Validate thermal dissipation requirements based on the 40 mOhm post-trip resistance limit.

Ptc Resettable Fuses Part Context

This part belongs to the FSMD2920 series of surface mountable PTC resettable fuses manufactured by RFE/Fuzetec. The series is characterized by its compact 2920 metric footprint and concave design options. These devices serve as reusable alternatives to traditional fusible links in modern electronics, offering reliable overcurrent protection without permanent circuit interruption.

Ptc Resettable Fuses Replacement Considerations

The FSMD500-16-2920R is noted as a comparable alternative within the same series, offering similar voltage ratings and footprint dimensions. Verify electrical parameter differences, particularly regarding hold and trip currents, before substitution. Cross-reference with equivalent offerings from manufacturers like Bourns or Littelfuse only if exact specifications match.