RGEF800K

Ptc Resettable Fuses Overview

The Littelfuse RGEF800K is a PolySwitch resettable PTC fuse rated for 16V maximum voltage and 8A hold current. It features a radial, disc-style through-hole package with a trip current of 13.6A and a maximum fault current rating of 100A. The device operates within a temperature range of -40°C to +85°C. Initial resistance is typically 5.6 mOhms, while post-trip resistance reaches up to 17.5 mOhms. Certified by UL, CSA, and TUV, it provides reliable overcurrent protection in compact electronic assemblies.

Ptc Resettable Fuses Feature Summary

• Polymer-based self-resetting mechanism for reusable circuit protection
• Radial leaded construction designed for through-hole PCB mounting
• Certified compliance with major safety standards including UL, CSA, and TUV

Ptc Resettable Fuses Applications

• Consumer electronics power supply input protection
• Portable device battery circuit safeguarding
• Peripheral interface port overcurrent defense

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix K against official Littelfuse documentation to confirm exact packaging or variant specifications. Ensure the selected component matches the required 16VDC rating and 8A continuous current constraints for the target application design.

Ptc Resettable Fuses Selection Notes

Select this component when low initial resistance and high holding current are required for space-constrained designs. The radial disc form factor facilitates automated insertion processes. Confirm that the 100A maximum fault current capability aligns with the system's potential short-circuit levels.

Ptc Resettable Fuses Part Context

This part belongs to the RGEF series of PolySwitch resettable fuses from Littelfuse. The series offers various current ratings within a standardized radial package family, allowing designers to scale protection levels while maintaining consistent mechanical footprint and mounting characteristics across different product lines.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include the RUEF800K, though it carries a 30V rating. Verify that the higher voltage rating does not conflict with system isolation requirements before cross-referencing.