RXEF110-AP

Ptc Resettable Fuses Overview

The Littelfuse RXEF110-AP is a radial leaded PolySwitch resettable fuse from the RXEF series, designed for overcurrent protection in electronic circuits. It features a maximum voltage rating of 72 VDC and a hold current of 1.1 A. The device trips at a current of 2.2 A and can withstand a maximum fault current of 40 A. Its initial resistance is typically 380 mOhms. Operating within a temperature range of -40°C to +85°C, it utilizes a radial through-hole mounting style with a 5.8 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault conditions without requiring manual replacement
• Offers high voltage tolerance up to 72 VDC for diverse power supply applications
• Supports high-volume electronics assembly processes due to compatible form factor

Ptc Resettable Fuses Applications

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

Ptc Resettable Fuses Procurement Notes

Verify that the suffix 'AP' denotes the specific packaging configuration, such as cut tape or reel, rather than altering the electrical function. Confirm RoHS compliance status and agency approvals (UL, CSA, TUV) match project requirements. Ensure the radial lead pitch aligns with the target PCB footprint before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable protection mechanism is required for low-current DC circuits operating up to 72 V. The 1.1 A hold current suits moderate load protection needs. Consider the 380 mOhms resistance impact on power dissipation. Compare against standard fuses if permanent interruption is acceptable, but choose this PPTC for reusable safety features.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse RXEF series, which provides a comprehensive set of radial leaded PPTC devices. The series is characterized by low hold currents and high voltage ratings, making it suitable for compact electronic designs requiring reliable overcurrent protection in space-constrained environments.

Ptc Resettable Fuses Replacement Considerations

The discontinued RLD60P110XF has direct substitutes including RXEF110-AP and RXEF110K-AP. Verify that the replacement maintains the same 1.1 A hold current and 72 VDC rating to ensure circuit compatibility.