MF-R800-2

Overview

The Bourns MF-R800-2 is a radial lead PTC resettable fuse from the MF-R series, designed for low-voltage power supply protection. It features a hold current of 8A and a trip current of 16A at maximum ambient temperature. The device operates with a rated voltage of 30V DC and can withstand a maximum surge current of 40A. Initial resistance is typically 5mΩ, rising to a maximum of 30mΩ after tripping. It utilizes cured flame-retardant epoxy polymer insulation compliant with UL 94V-0 standards.

Feature Summary

• Radial lead construction with cured flame-retardant epoxy polymer insulation
• RoHS compliant and halogen-free design
• Meets UL 94V-0 flammability requirements for insulation material

Applications

• Computer and peripheral equipment power circuits
• General electronics overcurrent protection
• Low-voltage automotive applications

Procurement Notes

Verify the specific suffix '-2' against official Bourns documentation to confirm package or tape-and-reel configuration differences compared to standard bulk versions. Ensure the selected variant matches the required mounting style and handling specifications for the target assembly process.

Selection Notes

Select this component when an 8A hold current and 30V DC rating are required for circuit protection. Consider the 16A trip threshold and 40A maximum interrupting capacity to ensure adequate safety margins against expected fault currents in the application environment.

Part Context

This part belongs to the Bourns Multifuse MF-R series of PTC resettable fuses. These devices provide automatic load protection by increasing resistance significantly upon overheating due to overcurrent conditions, resetting automatically once cooled.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.