MF-RX250-2

Overview

The Bourns MF-RX250-2 is a resettable fuse from the MF-USHT series, designed for high-temperature applications. It functions as a polymeric positive temperature coefficient (PPTC) device that provides overcurrent protection by increasing resistance when heated. This component is suitable for protecting circuits in demanding environments where standard fuses may fail due to thermal stress.

Feature Summary

• High-temperature capability for robust operation
• Resettable overcurrent protection mechanism
• Polymeric positive temperature coefficient technology

Applications

• Consumer electronics
• Industrial equipment
• Telecommunications

Procurement Notes

Verify the specific voltage and current ratings required for your circuit design against the official datasheet specifications. Ensure the operating environment temperature aligns with the component's high-temperature rating. Confirm package type and termination style match your PCB layout requirements before ordering.

Selection Notes

Select this component when high-temperature stability is critical for overcurrent protection. Consider the hold current and trip current parameters relative to your normal operating current. Evaluate the maximum fault current the device can handle without damage. Ensure compatibility with the reflow soldering process used in assembly.

Part Context

This part belongs to the MF-USHT series of high-temperature PPTC resettable fuses. The series expands Bourns' portfolio of resettable protection devices, offering enhanced thermal performance compared to standard PPTC components. It complements other automotive-grade and industrial protection solutions offered by the manufacturer.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Bourns resources or distributors for cross-reference information if direct replacement is necessary.