MF-R020-0-17

Ptc Resettable Fuses Overview

The MF-R020-0-17 is a polymeric positive temperature coefficient (PTC) resettable fuse manufactured by Bourns Inc. This component belongs to the MF-R series and is designed for overcurrent protection in electronic circuits. It features a radial through-hole package with straight leads, identified by the suffix -17. The device operates at a maximum voltage of 60V and has a hold current of 200 mA. It is rated for a maximum current of 40 A and complies with the AEC-Q200 automotive qualification standard.

Ptc Resettable Fuses Feature Summary

• Provides automatic circuit recovery after fault clearance without manual replacement
• High stability and reliability suitable for demanding automotive environments
• Compact radial disc form factor facilitates easy integration into PCB layouts

Ptc Resettable Fuses Applications

• Automotive electronics systems requiring AEC-Q200 compliance
• Consumer electronic devices needing overcurrent protection
• Industrial instrumentation circuits
• Telecommunications equipment

Ptc Resettable Fuses Procurement Notes

Verify the specific lead configuration when ordering, as the -17 suffix denotes straight leads. Confirm that the application voltage does not exceed the 60V rating. Ensure the expected operating current remains below the 200 mA hold current threshold to prevent nuisance tripping during normal operation. Cross-reference datasheets for thermal derating requirements if ambient temperatures vary significantly from standard conditions.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable protection solution is required for low-voltage DC circuits up to 60V. The 200 mA hold current makes it suitable for protecting sensitive signal lines or low-power modules. Consider the trip current characteristics and response time relative to the protected circuit's tolerance. The radial package style is appropriate for applications where board space allows for through-hole mounting rather than surface-mount alternatives.

Ptc Resettable Fuses Part Context

This part is part of the broader MF-R series of PTC resettable fuses from Bourns. The series includes various variants with different hold currents, voltages, and package options such as tape-and-reel configurations. The MF-R020-0-17 specifically represents the 200 mA hold current variant with straight leads, distinguishing it from other series members like the MF-R020-2 which may have different lead styles or packaging formats.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes within the same family include variants with identical electrical ratings but different packaging, such as MF-R020-AP-17. When replacing, ensure the new component matches the 60V max voltage and 200 mA hold current specifications. Verify lead spacing compatibility if mechanical constraints are critical.