FRX135-90F

Ptc Resettable Fuses Overview

The FRX135-90F is a radial leaded PTC resettable fuse from the FRX Series, manufactured by RFE/Fuzetec. It features a disc package with a diameter of 0.571 inches (14.50mm) and a lead spacing of 0.201 inches (5.10mm). The component provides a hold current of 1.35A at 23°C and a trip current of 2.7A. It operates within a temperature range of -40°C to 85°C and has a maximum resistance of 300 mOhms.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through automatic resistance increase during fault conditions
• Self-recovering functionality eliminates the need for manual replacement after tripping
• Designed for through-hole mounting with radial leads for standard PCB integration

Ptc Resettable Fuses Applications

• Protection of electronic circuits against overcurrent faults
• Battery pack safeguarding in portable devices
• Power supply input protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'F' corresponds to the required tape-and-reel or bulk packaging configuration as defined by the manufacturer's ordering guide. Confirm that the thermal environment does not exceed the 85°C operating limit to maintain the specified 1.35A hold current rating. Ensure the footprint matches the 14.50mm diameter and 5.10mm lead spacing for proper assembly.

Ptc Resettable Fuses Selection Notes

Select this component when a 1.35A continuous current capacity is required with a 2.7A trip threshold. The radial disc form factor suits applications where space constraints allow for a 14.50mm diameter footprint. Consider the 300 mOhm maximum initial resistance for voltage drop calculations in low-voltage circuits.

Ptc Resettable Fuses Part Context

This part belongs to the FRX90 series of resettable fuses, which are polymeric positive temperature coefficient devices. The series offers various hold current options within a standardized disc package, providing a reusable alternative to traditional one-time fusible links for circuit protection.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 1.35A hold current, 90V interrupt rating, and radial disc package dimensions. Verify that any alternative component maintains equivalent thermal characteristics and trip time performance under similar fault conditions.