MF-RX090/72-2-17

Ptc Resettable Fuses Overview

The Bourns MF-RX090/72-2-17 is a radial leaded PPTC resettable fuse from the MF-RX series. It features a maximum voltage of 72V and a hold current of 0.9A. The trip current is 1.8A with a maximum trip time of 7.2s. Rated for a maximum current of 40A, it operates between -40°C and +85°C. Resistance ranges from 0.14Ω to 470mΩ, with dimensions of 3.1mm width, 11.7mm length, and 16.7mm height.

Ptc Resettable Fuses Feature Summary

• Provides overcurrent protection through polymer positive temperature coefficient (PPTC) technology.
• Offers automatic circuit restoration after fault conditions clear without manual replacement.
• Designed for robust performance in high-voltage and high-temperature environments.

Ptc Resettable Fuses Applications

• Automotive circuit protection
• Industrial instrumentation
• Telecommunications equipment

Ptc Resettable Fuses Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm RoHS compliance status via the supplier's material data sheet. Ensure storage conditions maintain integrity prior to assembly. Validate that the specific suffix matches the required electrical characteristics for the target design.

Ptc Resettable Fuses Selection Notes

Select this component when a radial leaded form factor is required for PCB mounting. Choose based on the 0.9A hold current and 72V rating to match circuit parameters. Consider the 40A max current capability for surge tolerance. Evaluate thermal management needs within the specified operating temperature range.

Ptc Resettable Fuses Part Context

This part belongs to the Bourns Multifuse MF-RX series of resettable fuses. These components are engineered for general-purpose circuit protection across various electronic industries. The series provides a cost-effective alternative to traditional fusible links while maintaining reliable performance standards.

Ptc Resettable Fuses Replacement Considerations

Consult official substitution guides for verified equivalents. Ensure replacement parts match the 72V rating and 0.9A hold current specifications. Verify physical dimensions fit the existing footprint.