MF-RG300-0

Overview

The MF-RG300-0 is a radial leaded PPTC resettable fuse from the MF-RG series, manufactured by Bourns. It features a holding current of 3 A and a trip current of 5.1 A, with a maximum voltage rating of 16 VDC. The device has a maximum fault current rating of 100 A and a typical resistance of 65 mOhms. It operates within a temperature range of -40°C to +85°C and utilizes a 5.1 mm lead spacing for PCB mounting.

Feature Summary

• Provides automatic circuit protection through self-resetting polymeric positive temperature coefficient technology
• Designed for high-reliability applications requiring robust overcurrent defense in low-voltage systems
• Features radial leads for secure through-hole PCB integration

Applications

• Consumer electronics power input protection
• Portable device battery circuits
• Low-voltage industrial control boards

Procurement Notes

Verify the specific suffix '0' against the official Bourns datasheet to confirm exact electrical tolerances and physical dimensions. Ensure the procurement specification matches the required 16VDC rating and 3A holding current for the target application environment.

Selection Notes

Select this component when designing circuits that require manual reset capabilities after a fault event. Consider the 65 mOhms resistance impact on power loss and the 5.1 mm lead spacing for board layout constraints compared to surface-mount alternatives.

Part Context

This part belongs to the MF-RG series of resettable fuses, which are engineered for general-purpose circuit protection. The series offers various current ratings and package options to suit different power requirements while maintaining compliance with standard safety regulations.

Replacement Considerations

Consult the official Bourns cross-reference guide for direct substitutes. Verify that any alternative maintains the same 16VDC voltage rating and 3A holding current to ensure circuit compatibility.