RXEF075-AP

Ptc Resettable Fuses Overview

The Littelfuse RXEF075-AP is a PolySwitch resettable PPTC device from the RXEF series, designed for PCB mounting with radial leads. It features a maximum voltage rating of 72 VDC and a hold current of 750 mA. The trip current is specified at 1.5 A, with a maximum fault current capacity of 40 A. The component exhibits a typical resistance of 600 mOhms and operates within a temperature range of -40°C to +85°C. Physical dimensions include a diameter of 10.2 mm and a length of 3 mm, with a power dissipation rating of 920 mW.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection by increasing resistance during overcurrent events
• Offers manual reset capability after fault conditions are cleared
• Designed for compatibility with high-volume electronics assembly processes

Ptc Resettable Fuses Applications

• Industrial controls
• Computer motherboards
• USB hubs, ports and peripherals

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation against official Littelfuse documentation to confirm lead type and packaging configuration. Ensure the selected variant matches the required voltage and current ratings for the target application circuit. Cross-reference manufacturer part numbers with distributor listings to confirm availability and authenticity before procurement.

Ptc Resettable Fuses Selection Notes

Select this component based on the 750 mA hold current and 72 VDC maximum voltage requirements. Consider the 600 mOhms resistance and 920 mW power dissipation for thermal management. Verify that the radial leaded package fits the PCB layout constraints and that the operating temperature range meets environmental specifications.

Ptc Resettable Fuses Part Context

This device belongs to the Littelfuse PolySwitch RXEF series of radial-leaded PPTC devices. The series provides low hold currents and high voltage ratings suitable for various electronic applications. The product line is recognized for RoHS compliance and lead-free construction, supporting modern manufacturing standards.

Ptc Resettable Fuses Replacement Considerations

Consult official Littelfuse substitution guides for verified alternatives. Generic equivalents may not match the specific electrical characteristics or physical dimensions required for the design.