RF5030-000

Ptc Resettable Fuses Overview

The Littelfuse nanoASMDCH005F-2 is a PolySwitch resettable PPTC device in the automotive high-temperature series. It features a 1206 (3216 metric) SMD package with dimensions of 3.4 mm length, 1.8 mm width, and 0.85 mm height. Key electrical parameters include a hold current of 50 mA, trip current of 150 mA, maximum voltage of 30 VDC, and resistance of 3.5 Ohms. The device supports a maximum fault current of 20 A, operates between -40°C and +125°C, and has a power dissipation rating of 800 mW.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through positive temperature coefficient polymer technology that increases resistance during fault conditions.
• Designed for automotive applications requiring high-temperature stability and reliability under harsh operating environments.
• Offers a compact surface-mount form factor suitable for space-constrained printed circuit board layouts.

Ptc Resettable Fuses Applications

• Protection of actuators and small motors in commercial and passenger vehicles
• Overcurrent safeguarding for display screens in automotive systems
• Circuit protection within battery management modules

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact electrical ratings and packaging configuration. Ensure the component meets required automotive standards such as AEC-Q200 if specified for your design. Confirm RoHS compliance status and lead-free soldering compatibility prior to integration into production assemblies.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection requires a low hold current near 50 mA within a 1206 footprint. Evaluate thermal derating requirements based on the 125°C maximum operating temperature limit. Compare resistance values against signal integrity constraints and ensure the 30 VDC rating aligns with the system voltage profile.

Ptc Resettable Fuses Part Context

This part belongs to the nanoASMD series, which focuses on miniaturized resettable fuses for automotive electronics. The series utilizes advanced polymer materials to deliver reliable performance in high-temperature environments typical of modern vehicle electrical architectures.

Ptc Resettable Fuses Replacement Considerations

Check Littelfuse datasheets for direct cross-references within the nanoASMD family. Verify that any substitute maintains identical hold current, voltage rating, and package dimensions to ensure mechanical and electrical compatibility without redesign.