60R040XPR

Ptc Resettable Fuses Overview

The Littelfuse 60R040XPR is a PolySwitch resettable PTC device designed for overcurrent protection in radial leaded configurations. It features a maximum voltage rating of 60 VDC and a hold current of 400 mA, with a trip current of 800 mA. The component exhibits an initial resistance of 550 mOhms minimum and a post-trip resistance of up to 1.29 Ohms. Rated for a maximum fault current of 40 A, it operates within a temperature range of -40°C to +85°C. Physical dimensions include a 7.60 mm diameter and 3.10 mm height, with a 5.10 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by raising resistance as heat increases during fault conditions
• Offers reusable circuit safeguarding without requiring manual replacement after tripping
• Supports through-hole PCB mounting with radial leaded termination for secure installation

Ptc Resettable Fuses Applications

• Protection of telephony and networking equipment from high-voltage fault currents
• Safeguarding circuits, wiring harnesses, and PCB components against overcurrent events
• Overcurrent protection for automotive actuators, screens, and small motors

Ptc Resettable Fuses Procurement Notes

Verify the specific package variant (Cut Tape or Tube) required for your assembly process, as ordering suffixes may indicate different packaging formats. Confirm RoHS3 compliance status and check for any recent Product Change Notifications regarding coating materials or manufacturing sites before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a 60 VDC maximum voltage rating and 400 mA hold current align with circuit requirements. Ensure the 800 mA trip current threshold adequately protects downstream components without nuisance tripping during normal transient loads. Verify that the radial leaded form factor fits the available PCB footprint and drilling specifications.

Ptc Resettable Fuses Part Context

This part belongs to the POLY-FUSE 60R series of polymer positive temperature coefficient devices. It falls under the broader category of PolySwitch resettable fuses manufactured by Littelfuse. The series provides solid-state protection solutions compatible with various industrial and consumer electronics applications requiring reusable overcurrent safeguards.

Ptc Resettable Fuses Replacement Considerations

Cross-reference with other 60R series variants such as 60R010XPR or 60R090XPR if current ratings differ. Verify that substitute parts maintain identical voltage ratings, physical dimensions, and agency approvals like cURus and TUV for direct replacement compatibility.