250R080TU

Ptc Resettable Fuses Overview

The Littelfuse Inc. 250R080TU is a PolySwitch radial leaded PPTC resettable fuse from the 250R series, designed for overcurrent protection in circuits and wiring harnesses. It features a maximum voltage rating of 60V (250V Int), a hold current (Ih) of 80 mA, and a trip current (It) of 160 mA. The device has a minimum initial resistance (Ri) of 14 Ohms and a maximum post-trip resistance (R1) of 33 Ohms. It supports a maximum fault current of 3 A and operates within a temperature range of -40°C to 85°C. The component utilizes a radial, disc package with a lead spacing of 0.201 inches (5.10 mm).

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection for circuits, wiring harnesses, and PCB components.
• Automatically resets after cooling, reducing the need for manual replacements.
• Solders easily onto boards using standard high-volume electronics assembly processes.

Ptc Resettable Fuses Applications

• Protection for automotive circuits and wiring harnesses.
• Overcurrent protection for telecom equipment.
• PCB component safeguarding in industrial applications.

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'TU' against official Littelfuse documentation to confirm it denotes the correct tape-and-reel packaging variant, as standard listings may default to bulk packaging. Ensure the selected distributor source explicitly matches the manufacturer's part number designation to avoid receiving non-conforming inventory or generic radial leaded variants without the specified reel format.

Ptc Resettable Fuses Selection Notes

Select this component when circuit design requires a resettable polymer fuse with an 80 mA hold current and 60V DC rating. The radial leaded form factor is suitable for through-hole mounting on PCBs where space constraints allow for the specified dimensions. Consider the 14 Ohm minimum resistance for low-current signal lines and verify that the 3 A maximum fault current rating aligns with the system's potential short-circuit conditions.

Ptc Resettable Fuses Part Context

This device belongs to the Littelfuse POLY-FUSE® 250R series, which offers a wide range of operating voltages and current ratings. The series is certified lead-free, halogen-free, and RoHS compliant. These radial leaded PPTCs are engineered for applications requiring compact, reliable solid-state protection that can withstand harsh environments and high-volume assembly processes.

Ptc Resettable Fuses Replacement Considerations

The Bel Fuse Inc. part number 0ZRF0008FF1E is documented as a similar substitute option for this component.