Bourns Inc.
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MF-R075-2-14-99

MF-R075-2-14-99

Product Overview

Category

The MF-R075-2-14-99 belongs to the category of resettable fuses, also known as PTC (positive temperature coefficient) thermistors.

Use

It is used to protect electronic circuits from overcurrent and short-circuit conditions by limiting the flow of current in the event of a fault.

Characteristics

  • Resettable: The fuse automatically resets once the fault condition is removed.
  • Fast response time: Provides quick protection against overcurrent events.
  • Compact size: Suitable for space-constrained applications.
  • RoHS compliant: Environmentally friendly construction.

Package

The MF-R075-2-14-99 is typically available in tape and reel packaging for automated assembly processes.

Essence

The essence of the MF-R075-2-14-99 lies in its ability to provide reliable overcurrent protection while offering the convenience of automatic reset functionality.

Packaging/Quantity

It is commonly packaged in reels with quantities varying based on customer requirements.

Specifications

  • Hold Current: 0.75A
  • Trip Current: 1.5A
  • Voltage Rating: 30V
  • Operating Temperature Range: -40°C to 85°C
  • Maximum Time-to-Trip: 60 seconds at 25°C

Detailed Pin Configuration

The MF-R075-2-14-99 features two terminals for connection within the circuit. Terminal 1 serves as the input, while terminal 2 is the output.

Functional Features

  • Overcurrent Protection: Limits current flow during fault conditions.
  • Automatic Reset: Restores normal operation after fault clearance.
  • Reliable Performance: Consistent protection over multiple fault cycles.

Advantages and Disadvantages

Advantages

  • Reusability: Eliminates the need for replacement after a fault event.
  • Space-saving: Compact design suitable for miniaturized electronics.
  • Environmental Compliance: RoHS compliant construction.

Disadvantages

  • Limited Trip Current Range: Not suitable for high-current applications.
  • Temperature Sensitivity: Performance may vary under extreme temperature conditions.

Working Principles

The MF-R075-2-14-99 operates based on the PTC effect, where its resistance increases significantly when subjected to overcurrent conditions. This increase in resistance limits the current flow, providing protection to the circuit. Once the fault is cleared, the device cools down, and its resistance returns to a low value, allowing normal operation to resume.

Detailed Application Field Plans

The MF-R075-2-14-99 is widely used in various electronic applications, including: - Consumer Electronics: Such as smartphones, tablets, and laptops. - Automotive Electronics: Providing overcurrent protection in vehicle systems. - Industrial Control Systems: Safeguarding sensitive control circuitry from faults.

Detailed and Complete Alternative Models

  • MF-R050-0-99: Lower hold current variant for more sensitive applications.
  • MF-R110-0-18-99: Higher hold current variant for increased current protection.

In conclusion, the MF-R075-2-14-99 resettable fuse offers reliable overcurrent protection with the added benefit of automatic reset functionality, making it a versatile choice for a wide range of electronic applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של MF-R075-2-14-99 בפתרונות טכניים

  1. What is MF-R075-2-14-99?

    • MF-R075-2-14-99 is a type of resettable fuse, also known as a PTC (positive temperature coefficient) thermistor, designed to protect electronic circuits from overcurrent and short circuit conditions.

  2. What are the typical applications of MF-R075-2-14-99?

    • MF-R075-2-14-99 is commonly used in various technical solutions such as power supplies, battery packs, motor drives, and automotive electronics to provide overcurrent protection.

  3. How does MF-R075-2-14-99 work?

    • When an overcurrent or short circuit occurs, the resistance of MF-R075-2-14-99 increases rapidly, limiting the current flow and protecting the circuit. Once the fault is removed, the device resets itself and allows normal operation to resume.

  4. What are the key specifications of MF-R075-2-14-99?

    • The key specifications include a hold current of 0.75A, a trip current of 1.5A, a maximum voltage rating, and a maximum operating temperature.

  5. Can MF-R075-2-14-99 be used in automotive applications?

    • Yes, MF-R075-2-14-99 is suitable for automotive applications where overcurrent protection is required, such as in vehicle control systems and infotainment systems.

  6. Is MF-R075-2-14-99 RoHS compliant?

    • Yes, MF-R075-2-14-99 is compliant with the Restriction of Hazardous Substances (RoHS) directive, making it suitable for use in environmentally conscious designs.

  7. What are the advantages of using MF-R075-2-14-99 over traditional fuses?

    • MF-R075-2-14-99 offers the advantage of being resettable, eliminating the need for replacement after a fault condition. It also provides faster response times and can withstand multiple fault events.

  8. Can MF-R075-2-14-99 be used in high-temperature environments?

    • Yes, MF-R075-2-14-99 is designed to operate reliably in high-temperature environments, making it suitable for a wide range of industrial and automotive applications.

  9. Are there any application notes or design guidelines available for using MF-R075-2-14-99?

    • Yes, the manufacturer provides application notes and design guidelines to assist engineers in integrating MF-R075-2-14-99 into their technical solutions effectively.

  10. Where can I purchase MF-R075-2-14-99?

    • MF-R075-2-14-99 can be purchased from authorized distributors of the manufacturer or through online electronic component suppliers.