MF-RX012/250U-2 Product Overview

Introduction

The MF-RX012/250U-2 belongs to the category of resettable fuses and is designed for use in various electronic applications. This product is known for its unique characteristics, packaging, and functional features that make it a versatile component in electronic circuit protection.

Basic Information Overview

• Category: Resettable Fuse
• Use: Electronic circuit protection
• Characteristics: Resettable, compact design, high current rating
• Package: Tape and Reel
• Essence: Provides overcurrent protection in electronic circuits
• Packaging/Quantity: 250 units per reel

Specifications

• Voltage Rating: 12V
• Hold Current: 0.25A
• Trip Current: 0.5A
• Max Current: 40A
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The MF-RX012/250U-2 features a standard 2-pin configuration with clearly labeled terminals for easy installation and connection within electronic circuits.

Functional Features

• Resettable: Automatically resets after fault clearance
• Overcurrent Protection: Safeguards electronic components from excessive current
• Compact Design: Space-saving form factor for efficient PCB layout

Advantages and Disadvantages

Advantages

• Resettable functionality increases reliability
• High current rating for robust protection
• Compact size saves space in electronic designs

Disadvantages

• Limited trip current range may not be suitable for high-power applications
• Sensitive to temperature variations in extreme environments

Working Principles

The MF-RX012/250U-2 operates based on the principle of positive temperature coefficient (PTC) resistance. When an overcurrent condition occurs, the device heats up and its resistance increases, limiting the current flow. Once the fault is cleared, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

This resettable fuse is ideal for a wide range of electronic applications, including: - Consumer electronics - Automotive electronics - Industrial control systems - Telecommunications equipment

Detailed and Complete Alternative Models

1. MF-RX010/250U-2: Similar specifications with a lower hold current of 0.1A
2. MF-RX016/250U-2: Higher voltage rating of 16V with a hold current of 0.25A
3. MF-RX020/250U-2: Increased trip current of 1A for heavier load protection

In conclusion, the MF-RX012/250U-2 resettable fuse offers reliable overcurrent protection in a compact form factor, making it a valuable component in various electronic applications.

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