72R075XU

Ptc Resettable Fuses Overview

The Littelfuse 72R075XU is a radial-leaded PolySwitch resettable PTC fuse designed for overcurrent protection. It features a holding current of 750 mA and a trip current of 1.5 A, operating at a maximum voltage of 60 VDC. The device exhibits a maximum resistance of 600 mOhms and can withstand fault currents up to 40 A. It functions within a temperature range of -40°C to +85°C, with a power dissipation rating of 920 mW. Physical dimensions include a diameter of 10.2 mm and a length of 3.1 mm, utilizing a bulk packaging format.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit protection by increasing resistance during overcurrent events
• Offers reliable recovery without manual replacement after fault conditions clear
• Designed for PCB mounting with radial leads for secure installation

Ptc Resettable Fuses Applications

• Protection of telecommunications equipment circuits
• Overcurrent safeguarding in consumer electronics
• Circuit protection for industrial control systems

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'XU' against official Littelfuse documentation to confirm the bulk packaging designation. Ensure the 60VDC voltage rating aligns with the target application's maximum operating voltage. Cross-reference the 750mA holding current requirements with the circuit's normal operating load to prevent nuisance tripping. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents before finalizing procurement.

Ptc Resettable Fuses Selection Notes

Select this component when a 60VDC maximum operating voltage is required rather than higher voltage ratings. The 750mA holding current suits low-power signal lines or small motor controls. Consider the radial lead form factor for through-hole PCB assembly processes. Evaluate the 600mOhm initial resistance impact on circuit efficiency. Compare physical dimensions against available board space constraints.

Ptc Resettable Fuses Part Context

This part belongs to the 72R series of PolySwitch resettable fuses from Littelfuse. The series provides polymer positive temperature coefficient devices for circuit protection. These components serve as alternatives to traditional fusible links in various electronic assemblies. The 72R series is engineered for reliability in automotive, telecom, and general industrial environments.

Ptc Resettable Fuses Replacement Considerations

The 72R075XPR is a variant within the same series offering identical electrical specifications but utilizes an Ammo Pack package instead of Bulk. Verify that the packaging difference does not impact automated assembly processes.