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MF-R300
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MF-R300: Product Overview and Specifications

Introduction

The MF-R300 belongs to the category of resettable fuses, which are commonly used in electronic circuits to protect against overcurrent conditions. This entry provides a comprehensive overview of the MF-R300, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Resettable Fuse
  • Use: Protection against overcurrent conditions in electronic circuits
  • Characteristics: Resettable, compact design, reliable performance
  • Package: SMD (Surface Mount Device)
  • Essence: Provides overcurrent protection without the need for replacement
  • Packaging/Quantity: Typically available in reels of 3000 pieces

Specifications

  • Operating Voltage: 30V
  • Hold Current: 3A
  • Trip Current: 6A
  • Maximum Current: 100A
  • Operating Temperature Range: -40°C to 85°C
  • Resistance: <0.1Ω

Detailed Pin Configuration

The MF-R300 features a standard SMD pin configuration with two terminals for surface mounting onto circuit boards.

Functional Features

  • Resettable: Automatically resets after the fault condition is removed
  • Overcurrent Protection: Safeguards electronic circuits from excessive current flow
  • Compact Design: Space-efficient and suitable for modern electronics
  • Reliable Performance: Ensures consistent protection under varying conditions

Advantages and Disadvantages

Advantages

  • Resettable functionality reduces maintenance and replacement costs
  • Provides reliable overcurrent protection for sensitive electronic components
  • Compact size allows for integration into small form factor devices

Disadvantages

  • Limited maximum current handling compared to traditional fuses
  • Sensitive to temperature variations in extreme operating conditions

Working Principles

The MF-R300 operates based on the principle of positive temperature coefficient (PTC) behavior. When an overcurrent condition occurs, the device's resistance increases, limiting the current flow and protecting the circuit. Once the fault is removed, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

The MF-R300 is widely used in various electronic applications, including: - Consumer electronics - Automotive electronics - Industrial control systems - Telecommunications equipment - Power supplies

Detailed and Complete Alternative Models

  • MF-R050: Lower hold current variant for more sensitive applications
  • MF-R500: Higher current handling variant for industrial applications
  • MF-R700: Ultra-fast response variant for critical circuit protection

In conclusion, the MF-R300 resettable fuse offers reliable overcurrent protection in a compact and resettable form factor, making it suitable for a wide range of electronic applications.

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技術ソリューションにおける MF-R300 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is MF-R300?

    • MF-R300 is a type of polymer positive temperature coefficient (PPTC) resettable fuse, commonly used in electronic circuits for overcurrent protection.

  2. What are the typical applications of MF-R300?

    • MF-R300 is commonly used in battery packs, power supplies, and various electronic devices to protect against overcurrent conditions.

  3. What is the operating voltage range of MF-R300?

    • The operating voltage range of MF-R300 is typically from 6V to 60V, making it suitable for a wide range of electronic applications.

  4. What is the hold current of MF-R300?

    • The hold current of MF-R300 is typically around 3A, meaning it will not trip or interrupt the circuit under normal operating conditions below this current level.

  5. How does MF-R300 respond to overcurrent conditions?

    • When an overcurrent condition occurs, MF-R300 heats up and its resistance increases, effectively limiting the current flow and protecting the circuit.

  6. Can MF-R300 be reset after tripping?

    • Yes, MF-R300 is a resettable fuse, so it can return to its low-resistance state once the overcurrent condition is removed.

  7. What is the maximum ambient operating temperature for MF-R300?

    • The maximum ambient operating temperature for MF-R300 is typically around 85°C, ensuring reliable performance even in elevated temperature environments.

  8. Is MF-R300 suitable for automotive applications?

    • Yes, MF-R300 is often used in automotive electronics for overcurrent protection in systems such as airbags, infotainment, and power distribution.

  9. Does MF-R300 have any safety certifications?

    • Yes, MF-R300 may have safety certifications such as UL recognition, ensuring compliance with industry standards for electrical safety.

  10. What are the advantages of using MF-R300 in technical solutions?

    • The advantages of using MF-R300 include its compact size, resettable functionality, and ability to provide reliable overcurrent protection in various electronic applications.