MF-RX050/72-2-17

Overview

The Bourns MF-RX050/72-2-17 is a radial leaded PTC resettable fuse from the MF-RX series. It features a 500 mA hold current and a 1 A trip current, rated for a maximum voltage of 72 VDC. The device operates within a temperature range of -40°C to +85°C and has a maximum resistance of 0.3 Ohms. It utilizes a reel packaging format and is designed for PCB mount applications.

Feature Summary

• Provides overcurrent protection through automatic resistance increase during fault conditions
• Enables circuit recovery without manual component replacement after fault clearance
• Offers robust performance in high-voltage and elevated temperature environments

Applications

• Overcurrent protection for automotive electronic circuits
• Surge protection in industrial communication systems
• Circuit safeguarding in consumer electronics devices

Procurement Notes

Verify the specific suffix configuration against official Bourns documentation to ensure correct packaging and lead form. Confirm that the 72V rating aligns with system requirements. Check RoHS compliance status via manufacturer datasheets before integration.

Selection Notes

Select this component when a 500 mA hold current and 72V maximum voltage are required. Ensure the radial leaded package fits the PCB layout constraints. Verify thermal management capabilities within the specified operating temperature range.

Part Context

This part belongs to the Bourns Multifuse MF-RX family of polymer PTC resettable fuses. These components are engineered for reliable circuit protection across various industries, offering a cost-effective alternative to traditional fuses by providing reusable overcurrent defense mechanisms.

Replacement Considerations

Consult official substitution guides for equivalent ratings. Verify hold current, trip current, and voltage ratings match exactly. Ensure package type and mounting style compatibility before replacing.