MF-R400-2-14

Introduction

The MF-R400-2-14 is a resettable fuse belonging to the category of electronic components. This device is designed to protect electrical circuits from overcurrent and short circuit conditions. It offers unique characteristics, packaging options, and functional features that make it suitable for a wide range of applications.

Basic Information Overview

• Category: Electronic Components
• Use: Overcurrent and Short Circuit Protection
• Characteristics: Resettable, Reliable, Compact
• Package: Surface Mount Device (SMD)
• Essence: Protecting electrical circuits from overcurrent and short circuit conditions
• Packaging/Quantity: Available in reels or bulk packaging, quantity varies based on supplier

Specifications

• Operating Voltage: 30V
• Hold Current: 4A
• Trip Current: 8A
• Maximum Current: 100A
• Operating Temperature Range: -40°C to 85°C
• Dimensions: 3.2mm x 2.5mm x 1.35mm

Detailed Pin Configuration

The MF-R400-2-14 has a surface mount configuration with two terminals for easy integration into circuit boards.

| Pin Number | Description | |------------|-------------| | 1 | Terminal 1 | | 2 | Terminal 2 |

Functional Features

• Resettable: Automatically resets after the fault condition is removed.
• Reliable: Provides consistent protection against overcurrent events.
• Compact: Space-saving design for efficient PCB layout.

Advantages and Disadvantages

Advantages

• Resettable functionality increases product lifespan.
• Reliable protection against overcurrent and short circuit conditions.
• Compact size allows for versatile application in various electronic devices.

Disadvantages

• Limited maximum current handling compared to traditional fuses.
• Sensitive to voltage fluctuations in some applications.

Working Principles

The MF-R400-2-14 operates based on the principle of positive temperature coefficient (PTC) resistance. When an overcurrent or short circuit occurs, the device heats up, causing its resistance to increase and effectively limiting the current flow. Once the fault is removed, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

The MF-R400-2-14 is widely used in electronic devices such as power supplies, battery packs, and consumer electronics. Its resettable nature makes it ideal for applications where frequent overcurrent events may occur, requiring minimal maintenance and replacement.

Detailed and Complete Alternative Models

• MF-R050-0-99: Lower hold current but suitable for more sensitive electronic components.
• MF-R800-2-17: Higher maximum current rating for heavy-duty applications.
• MF-R200-0-18: Intermediate model offering a balance between hold current and trip current ratings.

In conclusion, the MF-R400-2-14 resettable fuse provides reliable overcurrent and short circuit protection in a compact and versatile package. Its unique characteristics and functional features make it a valuable component in various electronic applications.

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