RGEF1200-1

Ptc Resettable Fuses Overview

The RGEF1200-1 is a polymeric PTC resettable fuse from the Littelfuse PolySwitch RGEF series. It provides overcurrent protection in through-hole radial configurations. The device features a hold current of 12 A and a trip current of 20 A. Its maximum voltage rating is 16 V, with a maximum current capacity of 100 A. The component operates within a temperature range of -40°C to +85°C. It utilizes a disc form factor suitable for high-volume electronics assembly.

Ptc Resettable Fuses Feature Summary

• Polymeric positive temperature coefficient construction for automatic reset functionality after fault conditions
• Radial leaded package design compatible with standard through-hole mounting processes
• Integrated thermal sensing mechanism that increases resistance significantly upon overheating

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Protection circuits in battery-powered equipment
• Interface protection for communication ports
• Power supply input filtering in consumer electronics

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix designation to ensure correct electrical characteristics and mechanical dimensions. Confirm compliance with RoHS directives if required by your manufacturing standards. Check datasheet specifications for ambient temperature derating curves to ensure reliable operation under actual load conditions. Validate that the radial lead spacing matches your printed circuit board layout requirements before finalizing procurement orders.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable overcurrent solution is preferred over single-use fuses. Ensure the hold current exceeds the normal operating current of the protected circuit. Verify that the trip current is lower than the maximum safe current for the downstream components. Consider the physical size constraints of the application, as the radial disc package occupies specific board area compared to surface mount alternatives.

Ptc Resettable Fuses Part Context

This part belongs to the RGEF series of PolySwitch resettable fuses manufactured by Littelfuse. The series offers various voltage and current ratings to suit different protection needs. These devices are designed for use in applications requiring repeated overcurrent events without permanent damage. The RGEF1200-1 specifically targets low-voltage, moderate-current protection scenarios in compact electronic assemblies.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes include other RGEF series parts with matching voltage and current ratings. Cross-reference with manufacturer lists for equivalent polymeric PTC devices from other suppliers. Ensure replacement parts maintain the same radial lead configuration and thermal performance characteristics.