MF-R300-2

Product Overview

Category

The MF-R300-2 belongs to the category of resettable fuses, also known as PTC (positive temperature coefficient) thermistors.

Use

It is primarily used for overcurrent protection in electronic circuits and devices.

Characteristics

• Resettable: The MF-R300-2 can automatically reset after the fault condition is removed.
• Current Limiting: It limits the current flow during overcurrent conditions.
• Compact Size: The device is designed to be compact, making it suitable for various electronic applications.

Package

The MF-R300-2 is typically available in a surface mount package, allowing for easy integration into circuit boards.

Essence

The essence of the MF-R300-2 lies in its ability to provide reliable overcurrent protection without the need for replacement after a fault condition.

Packaging/Quantity

The MF-R300-2 is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

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

Detailed Pin Configuration

The MF-R300-2 typically features two pins for surface mount installation, with specific pin configurations varying based on manufacturer specifications.

Functional Features

• Overcurrent Protection: The MF-R300-2 provides effective protection against overcurrent conditions, safeguarding electronic components and circuits.
• Automatic Reset: After the fault condition is resolved, the device resets automatically, eliminating the need for manual intervention.
• Fast Response Time: The fuse quickly responds to overcurrent events, minimizing potential damage to the circuitry.

Advantages and Disadvantages

Advantages

• Resettable Design: Eliminates the need for replacement after a fault condition.
• Space-Saving: Compact size makes it suitable for applications with limited space.
• Reliable Protection: Provides consistent overcurrent protection for electronic devices.

Disadvantages

• Limited Voltage Rating: The maximum voltage rating may not be suitable for high-voltage applications.
• Sensitivity to Temperature: Performance may be affected by extreme temperature conditions.

Working Principles

The MF-R300-2 operates based on the principle of positive temperature coefficient, where its resistance increases significantly when subjected to overcurrent conditions, limiting the current flow through the circuit. Once the fault is removed, the device cools down and resets to its initial state.

Detailed Application Field Plans

The MF-R300-2 is commonly utilized in various electronic applications, including: - Consumer Electronics: Such as smartphones, tablets, and laptops. - Automotive Electronics: For overcurrent protection in vehicle systems. - Industrial Equipment: Providing protection in control panels and machinery.

Detailed and Complete Alternative Models

• MF-R050-0-99: A lower hold current variant suitable for less demanding applications.
• MF-R500-2: A higher hold current variant for applications requiring greater current handling capacity.

In conclusion, the MF-R300-2 resettable fuse offers reliable overcurrent protection with its compact design and automatic reset feature, making it a valuable component in a wide range of electronic applications.

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