RLD30P500UF

Ptc Resettable Fuses Overview

The Littelfuse RLD30P500UF is a POLYFUSE resettable PTC thermistor designed for overcurrent protection in printed circuit board assemblies. It utilizes radial lead mounting for through-hole integration. The device maintains a holding current of 5.0 A and trips at 10.0 A under specified conditions. It supports a maximum voltage of 30 V DC with a rated maximum current capacity of 40 A. The component exhibits a low resistance of 20 mOhms and operates within a temperature range from -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault clearance without manual replacement
• Offers dual function as both overcurrent protection and temperature sensing element
• Ensures reliable performance through lead-free and halogen-free construction

Ptc Resettable Fuses Applications

• Protection of portable electronic devices against excessive current draw
• Overcurrent safeguarding in automotive data bus circuits
• Circuit protection for industrial control systems requiring thermal monitoring

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation during procurement, as variations such as UFG may indicate different packaging or compliance attributes compared to the standard UF configuration. Confirm RoHS status and lead-free plating requirements explicitly with the supplier, as documentation indicates potential discrepancies between part numbers and regulatory certifications. Ensure the selected variant matches the required axial or radial lead form factor for the target PCB layout.

Ptc Resettable Fuses Selection Notes

Select this component when a combined overcurrent protection and temperature sensing capability is required within a single device footprint. The radial lead configuration facilitates easy insertion into standard through-hole manufacturing processes. Evaluate the 5.0 A holding current against the normal operating load to ensure stable performance without nuisance tripping. Consider the 30 V maximum voltage rating to ensure compatibility with the system's supply rails.

Ptc Resettable Fuses Part Context

This part belongs to the RLD30 series of POLYFUSE resettable fuses manufactured by Littelfuse. The series is characterized by its ability to function as both a protective fuse and a temperature sensor. These components are widely utilized in applications demanding compact, self-resetting protection solutions that also provide thermal feedback capabilities for system management.

Ptc Resettable Fuses Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before attempting substitution.