RUEF700-2

Ptc Resettable Fuses Overview

The Littelfuse RUEF700-2 is a radial leaded PolySwitch resettable fuse from the RUEF series, rated for 30 Vdc. It features a hold current of 7 A and a trip current of 14 A with a maximum resistance of 30 mΩ. The device measures 27.7 mm in length, 19.1 mm in width, and 3 mm in height. It supports a maximum power dissipation of 3.8 W and operates within a temperature range of -40°C to +85°C. Certified by UL, CSA, TUV, RoHS, and CQC, it provides overcurrent protection for PCB-mounted applications.

Ptc Resettable Fuses Feature Summary

• Radial leaded PPTC construction for through-hole PCB mounting
• Automatic reset capability following fault condition removal
• High interrupting rating of 100 A for robust circuit safety

Ptc Resettable Fuses Applications

• Computer motherboards and peripheral ports
• Industrial control systems and transformers
• Battery packs and portable electronic devices

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix '-2' against the manufacturer datasheet to confirm packaging configuration, as this identifier typically denotes reel or cut tape supply rather than altering electrical performance. Ensure the required voltage and current ratings align with the target circuit design before procurement. Cross-reference agency approvals such as UL and CSA if specific certification compliance is mandatory for the end product.

Ptc Resettable Fuses Selection Notes

Select the RUEF700-2 when a high-current resettable fuse is required for 30 Vdc circuits. The 7 A hold current makes it suitable for protecting power lines in computing and industrial equipment. Consider the physical dimensions (27.7 x 19.1 x 3 mm) for board space constraints. Verify that the ambient operating temperature does not exceed 85°C to maintain reliable tripping characteristics.

Ptc Resettable Fuses Part Context

This component belongs to the Littelfuse RUEF series of PolySwitch resettable fuses. These devices utilize polymer positive temperature coefficient technology to provide automatic reset protection. The series offers various form factors and current ratings, designed to replace traditional one-time fuses in applications requiring repeated overcurrent events without manual replacement.

Ptc Resettable Fuses Replacement Considerations

RUEF700K-2: Same electrical specifications with alternative packaging.