MF-RX012/250U-0

Introduction

The MF-RX012/250U-0 is a component belonging to the category of resettable fuses. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Resettable Fuse
• Use: Overcurrent protection in electronic circuits
• Characteristics: Resettable, compact design, high current rating
• Package: Radial leaded package
• Essence: Provides overcurrent protection by limiting the flow of excessive current
• Packaging/Quantity: Available in reels or bulk packaging

Specifications

• Model: MF-RX012/250U-0
• Maximum Voltage: 30V
• Hold Current: 2.5A
• Trip Current: 5A
• Operating Temperature Range: -40°C to 85°C
• Resistance: <0.05Ω

Detailed Pin Configuration

The MF-RX012/250U-0 has two radial leads for easy installation on a circuit board. The pin configuration is as follows: - Pin 1: Connected to the positive terminal - Pin 2: Connected to the load or downstream circuit

Functional Features

• Resettable: Automatically resets after the fault condition is removed
• Overcurrent Protection: Limits the current to protect the circuit components
• Compact Design: Space-saving and suitable for densely populated PCBs
• High Current Rating: Capable of handling higher currents without permanent damage

Advantages and Disadvantages

Advantages

• Resettable functionality increases the lifespan of the component
• Provides reliable overcurrent protection
• Compact size allows for versatile integration into various electronic devices

Disadvantages

• Limited maximum voltage and current ratings compared to traditional fuses
• May experience nuisance tripping under certain conditions

Working Principles

When the current flowing through the MF-RX012/250U-0 exceeds the trip current, the device heats up and undergoes a reversible phase change, increasing its resistance and limiting the current flow. Once the fault condition is removed, the device cools down and returns to its low-resistance state, effectively resetting itself.

Detailed Application Field Plans

The MF-RX012/250U-0 is commonly used in various electronic applications, including: - Consumer electronics - Automotive electronics - Industrial control systems - Power supplies - Battery management systems

Detailed and Complete Alternative Models

• MF-RX005/250U-2: Lower hold current variant
• MF-RX020/250U-0: Higher hold current variant
• MF-RX012/600U-0: Higher voltage and hold current variant

In conclusion, the MF-RX012/250U-0 resettable fuse offers reliable overcurrent protection with its compact design and resettable functionality, making it suitable for a wide range of electronic applications.

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