RXEF075-2

Ptc Resettable Fuses Overview

The Littelfuse RXEF075-2 is a PolySwitch resettable PTC device designed for overcurrent protection in electronic circuits. It features a hold current of 750 mA and a trip current of 1.5 A, with a maximum voltage rating of 72 VDC. The component has a maximum resistance of 600 mOhms and can withstand fault currents up to 40 A. It operates within a temperature range of -40°C to +85°C and dissipates 920 mW of power. The device utilizes a radial leaded package with dimensions of 10.2 mm in diameter and 3 mm in length.

Ptc Resettable Fuses Feature Summary

• Provides automatic resettable overcurrent protection without requiring manual replacement after fault conditions clear.
• Offers high voltage tolerance suitable for applications requiring up to 72 VDC circuit protection.
• Features low initial resistance to minimize power loss during normal operation.
• Compatible with standard electronics assembly processes and meets RoHS compliance standards.

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 part number RXEF075-2 against official Littelfuse documentation to ensure correct hold and trip current specifications. Confirm that the radial leaded package style matches the target PCB layout requirements. Check for any recent product change notices or environmental compliance updates relevant to the manufacturing date code before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection requires a 750 mA hold current and a 72 VDC maximum voltage rating. Ensure the application environment stays within the specified -40°C to +85°C operating temperature range. Consider the 40 A maximum fault current capability to guarantee adequate safety margins against potential short-circuit events in the target system design.

Ptc Resettable Fuses Part Context

This device belongs to the RXEF series of PolySwitch resettable fuses from Littelfuse. The series provides a comprehensive range of radial-leaded PPTC products characterized by low hold currents and high voltage ratings. These devices are engineered for high-volume electronics assembly and offer reliable overcurrent protection across various consumer and industrial electronic applications.

Ptc Resettable Fuses Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. Verify compatibility with existing designs using equivalent electrical parameters if cross-referencing other manufacturers' components.