RLD60P300XF

Ptc Resettable Fuses Overview

The Littelfuse RLD60P300XF is a PolyFuse polymer PTC resettable fuse designed for through-hole radial disc mounting. It features a maximum voltage rating of 60V and a hold current (Ih) of 3.0A. The device trips at 6.0A with a maximum trip time of 19.8 seconds. Initial resistance is typically low, while post-trip resistance remains within specified limits. It supports a maximum fault current of 40A and operates within a temperature range of -40°C to +85°C. The component has a lead spacing of 10.20mm.

Ptc Resettable Fuses Feature Summary

• Polymeric self-resetting protection mechanism
• Radial through-hole disc package configuration
• High fault current handling capability up to 40A

Ptc Resettable Fuses Applications

• Overcurrent protection in consumer electronics
• Protection circuits in portable devices
• Battery pack circuit safeguarding

Ptc Resettable Fuses Procurement Notes

Verify component status as the RLD60P300XF is listed as obsolete by Littelfuse Inc. Confirm availability of parametric equivalents or direct substitutes such as the 60R300XF series if production continuity is required. Ensure compliance with RoHS non-compliant status if applicable to your manufacturing standards. Validate datasheet revisions before integration.

Ptc Resettable Fuses Selection Notes

Select this component for applications requiring 60V DC systems with 3.0A continuous current needs. Ensure PCB layout accommodates the 10.20mm lead spacing and radial disc footprint. Consider thermal derating requirements based on ambient operating temperatures exceeding standard ratings. Verify that the 40A maximum current rating aligns with potential fault conditions in the target circuit design.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse POLY-FUSE RLD60 series, which offers compact polymer resettable fuses for overcurrent protection. The series provides reliable circuit safeguarding in space-constrained environments. The RLD60P300XF specifically targets higher current applications within the 60V family, utilizing a larger disc diameter compared to lower-current variants in the same product line.

Ptc Resettable Fuses Replacement Considerations

The 60R300XF is identified as a parametric equivalent substitute. Verify pin compatibility and electrical specifications match the original design requirements before substitution.