MF-RG800-2

Overview

The Bourns MF-RG800-2 is a high-density, radial leaded polymeric positive temperature coefficient (PPTC) resettable fuse designed for PCB mounting. It features an 8 A hold current and a 13.6 A trip current, operating at a maximum voltage of 16 VDC. The device offers a maximum fault current rating of 100 A and maintains a low initial resistance of 11 mΩ. It functions within a temperature range of -40°C to +85°C, with a radial lead spacing of 5.1 mm and a component height of 20.9 mm.

Feature Summary

• Provides automatic circuit protection through reversible thermal response to overcurrent conditions
• Engineered for high-density applications utilizing a compact radial leaded package design
• Delivers robust fault current interruption capability up to 100 A

Applications

• Consumer electronics power input protection
• Portable device battery circuit safeguarding
• Low-voltage industrial control board overcurrent defense

Procurement Notes

Verify the specific hold current and voltage ratings against the target circuit requirements before integration. Confirm that the radial lead spacing matches the printed circuit board footprint dimensions. Ensure the maximum operating temperature aligns with the environmental constraints of the final assembly. Cross-reference the datasheet for precise reflow soldering profiles to maintain component integrity during manufacturing processes.

Selection Notes

Select this component when low profile and high current capacity are required in a radial configuration. Compare the 11 mΩ resistance against acceptable power loss limits in the application. Evaluate the 16 VDC rating against the system's nominal voltage to ensure adequate safety margins. Consider the 100 A interrupt rating relative to potential short-circuit currents in the protected circuit branch.

Part Context

This part belongs to the MF-RG series of high-density PPTC resettable fuses from Bourns. The series is characterized by its ability to provide reliable overcurrent protection in space-constrained environments. It serves as a reusable alternative to traditional one-time fusible links in low-voltage DC applications.

Replacement Considerations

Consult official Bourns documentation for verified cross-reference part numbers. Do not substitute with generic PPTC devices without confirming identical electrical parameters and mechanical dimensions.