RXEF017

Ptc Resettable Fuses Overview

The Littelfuse RXEF017 is a PolySwitch radial-leaded PTC resettable fuse designed for through-hole mounting. It features a maximum operating voltage of 60V and a hold current of 170mA. The device exhibits a typical resistance range of 3.3 to 5.21 ohms at 20°C, with a maximum trip resistance of 8 ohms. It supports a maximum power dissipation of 0.48W and operates within a temperature range of -40°C to 85°C.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by raising internal resistance as it heats to limit current flow during fault conditions.
• Offers resettable functionality, allowing the component to return to normal operation after cooling down post-trip.
• Compatible with high-volume electronics assembly processes due to its radial leaded form factor.

Ptc Resettable Fuses Applications

• Satellite video receivers
• Industrial controls
• Computer motherboards
• USB hubs, ports and peripherals

Ptc Resettable Fuses Procurement Notes

Verify the specific manufacturer designation, as documentation sources may list Littelfuse or TE Connectivity for this part number. Confirm that the procurement matches the required radial leaded package and RoHS compliance status. Ensure the selected unit aligns with the specified 60V rating and 170mA hold current parameters for the target circuit design.

Ptc Resettable Fuses Selection Notes

Select this component when designing circuits requiring resettable overcurrent protection for low-current applications up to 170mA. The 60V maximum voltage rating makes it suitable for low-voltage digital and peripheral interfaces. Consider the thermal environment, as the device's tripping behavior is influenced by ambient temperatures within the -40°C to 85°C operating range.

Ptc Resettable Fuses Part Context

The RXEF017 belongs to the RXEF series of PolySwitch radial-leaded devices, which represent a comprehensive set of PPTC products. This series is characterized by low hold currents and high voltage ratings, providing solid-state protection options alongside surface-mount and other termination methods for various electronic assemblies.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and thermal requirements if considering alternative radial-leaded PTC fuses from the same manufacturer family.