NANOSMD500LR-D-2

Ptc Resettable Fuses Overview

The NANOSMD500LR-D-2 is a resettable polymeric positive temperature coefficient (PPTC) device from the nanoSMD380LR series, manufactured by Littelfuse. It features a low-resistance design optimized for surface-mount applications in the 1206 package. The component provides overcurrent protection with a hold current of 5.0 A and a trip current of 10.0 A at maximum voltage ratings of 6 VDC. It exhibits a typical resistance of 1.4 mOhms and supports a maximum fault current of 50 A. The device operates within a temperature range of -40°C to +80°C and is housed in a compact 1206 footprint.

Ptc Resettable Fuses Feature Summary

• Low resistivity construction minimizes power loss during normal operation
• Surface-mountable design facilitates automated PCB assembly processes
• Self-resetting functionality eliminates the need for manual fuse replacement after fault clearance

Ptc Resettable Fuses Applications

• Portable electronic devices requiring compact circuit protection
• Battery packs and battery management systems
• Consumer electronics with limited board space constraints

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix D-2 against official Littelfuse documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure compatibility with standard SMT reflow profiles and check for moisture sensitivity level requirements prior to storage and handling. Confirm RoHS compliance status through the manufacturer's latest environmental declarations.

Ptc Resettable Fuses Selection Notes

Select this component when high holding current near 5 A is required in a minimal 1206 footprint. The low resistance value reduces thermal stress on the circuit compared to higher resistance alternatives. Evaluate the trip current threshold relative to the application's surge currents to ensure reliable operation without nuisance tripping during startup phases.

Ptc Resettable Fuses Part Context

This part belongs to the nanoSMD380LR family, which focuses on low-resistance PPTC solutions. It serves as an alternative to traditional fusible links in modern electronics where space efficiency and automatic recovery are critical. The series is designed to meet automotive and industrial reliability standards while maintaining a small physical profile.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with NANOSMD500LR-2 for potential functional equivalents. Verify that substitute parts match the 1206 package dimensions, 6 VDC rating, and 5 A hold current specifications. Ensure any replacement maintains the same low-resistance characteristics and thermal performance limits.