RUEF135S

Ptc Resettable Fuses Overview

The Littelfuse RUEF135S is a radial leaded PolySwitch resettable fuse from the RUEF series, designed for overcurrent protection in DC circuits. It features a 30 VDC maximum voltage rating and a 1.35 A hold current. The device trips at 2.7 A with a maximum trip time of 9.6 seconds. It has a maximum interrupting rating of 100 A and a typical resistance of 130 mΩ. Operating temperatures range from -40°C to +85°C.

Ptc Resettable Fuses Feature Summary

• Radial leaded construction for through-hole PCB mounting
• Self-resetting polymer technology eliminates replacement needs after fault clearance
• High interrupting capacity suitable for demanding circuit protection scenarios

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Protection for battery-powered equipment and accessories
• Circuit safeguarding in telecommunications infrastructure

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'S' against official Littelfuse documentation to confirm package or tape-and-reel variations. Ensure the hold current and voltage ratings match the target circuit design requirements before procurement. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability.

Ptc Resettable Fuses Selection Notes

Select this component when a 30 VDC system requires a 1.35 A hold current with high fault tolerance. The radial lead form factor is appropriate for standard through-hole assembly processes. Consider the 100 A interrupting rating for applications with potential high-energy short circuits.

Ptc Resettable Fuses Part Context

The RUEF series represents Littelfuse's comprehensive line of radial leaded PPTC devices. This series balances voltage ratings up to 30 VDC with hold currents up to 9 A. The RUEF135S utilizes proprietary polymer technology to provide reliable, reusable circuit protection without manual intervention.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other Littelfuse RUEF series variants with matching electrical parameters. Verify that alternative manufacturers' radial PPTCs meet the same 100 A interrupting rating and physical footprint constraints.