RXEF160

Ptc Resettable Fuses Overview

The Littelfuse RXEF160 is a radial lead PolySwitch resettable PTC device designed for circuit protection. It features a hold current of 1.6 A and a trip current of 3.2 A, with a maximum voltage rating of 72 VDC. The component offers a maximum fault current (Imax) of 40 A and an initial resistance of 220 mOhms. It operates within a temperature range of -40°C to +85°C and utilizes a PCB mount installation style with a 5.8 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection through positive temperature coefficient behavior
• Eliminates the need for manual fuse replacement after tripping events
• Offers high interrupting capability for robust circuit safeguarding

Ptc Resettable Fuses Applications

• Overcurrent protection in portable electronic devices
• Circuit safeguarding in telecommunications equipment
• Protection for peripheral interfaces and data lines

Ptc Resettable Fuses Procurement Notes

Verify component status as the RXEF160 is listed as obsolete or discontinued by the manufacturer. Confirm availability of alternative sources or suitable replacements before finalizing design specifications. Ensure compliance with RoHS requirements if applicable to the target application environment.

Ptc Resettable Fuses Selection Notes

Select this component based on the specific 1.6 A hold current and 72 VDC voltage rating requirements. Consider the thermal environment, as the operating range extends to +85°C. Evaluate the 220 mOhms resistance impact on power loss and the 40 A Imax rating against potential fault currents in the target circuit design.

Ptc Resettable Fuses Part Context

This part belongs to the RXEF series of PolySwitch resettable fuses from Littelfuse. These devices are engineered for applications requiring reliable, non-latching protection against overcurrent conditions without permanent circuit interruption.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Littelfuse official resources for current equivalent recommendations.