RGEF500-1

Ptc Resettable Fuses Overview

The Littelfuse RGEF500-1 is a PolySwitch resettable PPTC device designed for overcurrent protection. It features a hold current of 5 A and a trip current of 8.5 A, with a maximum voltage rating of 16 V. The component has a maximum resistance of 34 mΩ and a rated maximum current of 100 A. It operates within a temperature range of -40°C to +85°C and dissipates up to 2.6 W. Dimensions are 14.3 mm in length, 3 mm in height, and it utilizes radial through-hole mounting.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by increasing resistance as the polymer heats during fault conditions
• Offers automatic circuit restoration after cooling without requiring manual replacement
• Designed for compact PCB integration using radial leaded termination style

Ptc Resettable Fuses Applications

• Protection for wiring harnesses and circuit boards
• Overcurrent safeguarding for telecom equipment
• Power supply circuit protection

Ptc Resettable Fuses Procurement Notes

Verify the specific ordering suffix matches the required packaging format, such as bulk or tape and reel configurations. Confirm that the thermal derating curves align with the intended operating environment. Ensure the selected variant meets all necessary agency approvals for the target market. Cross-reference the datasheet specifications against system requirements before finalizing the procurement order.

Ptc Resettable Fuses Selection Notes

Select this component based on the 5 A hold current and 16 V maximum voltage ratings. Consider the 34 mΩ maximum resistance for low impedance applications. Evaluate the 100 A maximum current capability for fault scenarios. Ensure the radial package fits the available PCB footprint and mounting constraints.

Ptc Resettable Fuses Part Context

This part belongs to the RGEF series of PolySwitch resettable fuses from Littelfuse. These devices are engineered for robust circuit protection in demanding environments. The series offers various current ratings while maintaining consistent physical dimensions and performance characteristics suitable for industrial and commercial electronics.

Ptc Resettable Fuses Replacement Considerations

Compatible substitutes include other RGEF series variants with matching electrical parameters. Verify that alternative parts maintain the same 16 V rating and radial lead configuration. Check for equivalent agency certifications if regulatory compliance is critical.