NANOASMDCH050F/24-2

Ptc Resettable Fuses Overview

The NANOASMDCH050F/24-2 is a surface-mount polymeric PTC resettable fuse from the nanoASMD series, manufactured by Littelfuse. It features a 1206 (3216 metric) package with dimensions of 3.4 mm length, 1.8 mm width, and 0.85 mm height. The device has a hold current of 500 mA and a trip current of 1 A. It supports a maximum voltage of 24 VDC and offers a maximum fault current rating of 20 A. The initial resistance is 3.5 Ohms, with a power dissipation of 800 mW. It operates within a temperature range of -40°C to +125°C and holds AEC-Q200 automotive qualification.

Ptc Resettable Fuses Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• Compact 1206 surface-mount footprint for space-constrained designs
• High thermal endurance supporting operation up to 125°C

Ptc Resettable Fuses Applications

• Automotive electronic circuit protection
• Overcurrent protection in compact PCB assemblies
• Portable electronics power line safeguarding

Ptc Resettable Fuses Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified suppliers. Confirm that the received parts match the specific suffix /24-2 to ensure correct voltage and current ratings. Check manufacturing date codes and lot numbers against quality certificates. Ensure storage conditions comply with moisture sensitivity level requirements to prevent soldering defects during assembly.

Ptc Resettable Fuses Selection Notes

Select this component when a low-profile 1206 package is required for high-current applications up to 500 mA. The 24VDC rating suits low-voltage automotive and consumer systems. Consider the 3.5 Ohm initial resistance for voltage drop calculations. Ensure the ambient operating environment does not exceed 125°C to maintain reliable tripping characteristics and long-term stability.

Ptc Resettable Fuses Part Context

This part belongs to the nanoASMD family of high-temperature SMD fuses. It shares the 1206 form factor with other variants but differs in electrical ratings. Unlike the miniASMD series which uses larger packages, this model provides similar protection in a smaller volume. It complements the broader PolySwitch portfolio designed for robust overcurrent management in modern electronics.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include NANOASMDCH050F-2 and NANOASMDCH050F/24. Verify package compatibility and electrical parameters before substitution. Cross-reference datasheets to confirm identical hold and trip currents.