RUEF135-AP

Ptc Resettable Fuses Overview

The Littelfuse RUEF135-AP is a radial-leaded PolySwitch resettable PPTC fuse designed for overcurrent protection. It features a hold current of 1.35 A and a trip current of 2.7 A, with a maximum voltage rating of 30 VDC. The device has a maximum fault current rating of 100 A and an initial resistance of 130 mΩ. It operates within a temperature range of -40°C to +85°C and utilizes a 5.8 mm lead spacing.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by raising resistance as it heats to limit current flow.
• Resettable design allows circuit restoration after cooling, eliminating the need for replacement.

Ptc Resettable Fuses Applications

• Telecom and networking equipment
• Computer motherboards and peripherals
• Battery packs

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'AP' against the official Littelfuse datasheet to confirm packaging configuration, such as cut tape or reel specifications. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the hold current and voltage ratings with the target circuit parameters to guarantee appropriate protection levels.

Ptc Resettable Fuses Selection Notes

Select this component when a low-voltage, high-current resettable fuse is required for PCB mounting. The radial leaded form factor facilitates through-hole assembly. Consider the 130 mΩ resistance for power loss calculations and ensure the 100 A fault current rating exceeds potential short-circuit conditions in the application.

Ptc Resettable Fuses Part Context

This part belongs to the RUEF series of PolySwitch resettable fuses from Littelfuse. These devices are solid-state circuits that function similarly to traditional fuses but can be manually reset. The series is widely used in consumer electronics and industrial controls for protecting sensitive components from overcurrent events.

Ptc Resettable Fuses Replacement Considerations

Consult the Littelfuse selection guide for direct replacements with identical electrical characteristics. Verify that any substitute maintains the same radial package dimensions and lead spacing to ensure mechanical compatibility without redesigning the PCB footprint.

Ptc Resettable Fuses FAQ

What is the maximum fault current rating for the RUEF135-AP?

The RUEF135-AP has a maximum fault current rating of 100 A.

Does the RUEF135-AP require manual replacement after tripping?

No, it is a resettable device that restores functionality once it cools down after the fault condition is removed.