MF-RX065/72-0-17

Overview

The Bourns MF-RX065/72-0-17 is a radial leaded PTC resettable fuse from the Multifuse MF-RX/72 series. It features a maximum voltage rating of 72 VDC and a hold current of 0.65 A. The trip current is specified at 1.3 A, with a maximum interrupting rating of 40 A. The device has a typical resistance of 0.8 Ohms and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides automatic circuit protection against overcurrent conditions through positive temperature coefficient behavior.
• Offers reliable reset functionality after fault clearance without requiring manual replacement.
• Features radial leads designed for standard printed circuit board mounting applications.

Applications

• Overcurrent protection in portable electronic devices
• Circuit safeguarding in telecommunications equipment
• Protection for peripheral interfaces and data lines

Procurement Notes

Verify that the specific suffix '-17' aligns with required packaging or tape-and-reel specifications if automated assembly is utilized. Confirm that the 72V DC rating meets the system's maximum operating voltage requirements under all transient conditions. Ensure thermal management strategies account for the device's power dissipation characteristics during normal operation.

Selection Notes

Select this component when a 0.65 A hold current and 72 VDC rating are required for compact PCB designs. Consider the 0.8 Ohm resistance value for impact on circuit efficiency. Evaluate the radial lead configuration against available board space and mounting orientation constraints compared to surface mount alternatives.

Part Context

This part belongs to the Bourns Multifuse MF-RX/72 series, which provides resettable protection for various electronic circuits. The series offers multiple current ratings within a consistent voltage framework, allowing designers to scale protection levels while maintaining standardized form factors and performance characteristics across different product lines.

Replacement Considerations

Direct substitutes include other MF-RX065/72 variants with differing suffixes for packaging changes. Cross-brand replacements require matching the 0.65 A hold current, 72 VDC rating, and radial package dimensions to ensure functional equivalence.

FAQ

What is the maximum interrupting rating for this fuse?

The maximum interrupting rating is 40 A.

Does this component support surface mount technology?

No, this specific model utilizes radial leads for through-hole PCB mounting.