RUEF600-2

Ptc Resettable Fuses Overview

The Littelfuse RUEF600-2 is a PolySwitch® RUEF series polymer PTC resettable fuse designed for through-hole radial mounting. It features a maximum voltage rating of 30 VDC and a hold current (Ih) of 6 A, with a trip current (It) of 12 A. The device has a maximum fault current rating of 100 A and a maximum resistance after tripping (R1) of 40 mΩ. Initial resistance (Ri) is typically 5 mΩ. It operates within a temperature range of -40°C to 85°C, with a power dissipation of 3.5 W. Dimensions are 16.5 mm length, 3.0 mm width, and 24.1 mm height.

Ptc Resettable Fuses Feature Summary

• Provides automatic overcurrent protection by increasing resistance during fault conditions
• Offers manual reset capability without component replacement after cooling
• Features a compact radial leaded form factor suitable for PCB integration

Ptc Resettable Fuses Applications

• Protection of telecommunications equipment circuits
• Overcurrent safeguarding in automotive electronics
• Power supply input circuit protection

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix '-2' indicates the required packaging format, such as tape and reel or cut tape, as this affects handling and assembly compatibility. Confirm that the 30V DC rating aligns with the system's maximum operating voltage under all load conditions. Ensure the 6A hold current meets the continuous operational requirements without nuisance tripping during normal startup transients.

Ptc Resettable Fuses Selection Notes

Select this component when a high-current, low-resistance resettable fuse is needed for 30V DC systems. The 6A hold current allows for significant surge tolerance before tripping. Verify that the physical dimensions fit the available PCB footprint and that the radial lead spacing matches the board layout. Consider the thermal environment, as ambient temperature affects the effective hold current.

Ptc Resettable Fuses Part Context

This part belongs to the Littelfuse RUEF series of PolySwitch resettable fuses. These devices utilize polymer technology to provide reliable circuit protection. The RUEF series is characterized by its radial leaded construction, making it suitable for applications requiring robust mechanical mounting and high current handling capabilities compared to smaller surface-mount alternatives.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other RUEF series parts with identical electrical ratings, such as RUEF600. Verify that any alternative maintains the same 30V DC rating, 6A hold current, and radial package dimensions to ensure mechanical and electrical compatibility.