MF-RX020/72-2 Product Overview

Introduction

The MF-RX020/72-2 is a versatile electronic component that belongs to the category of resettable fuses. This entry provides a comprehensive overview of the product, 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: Overcurrent protection in electronic circuits
• Characteristics: Resettable, compact design, reliable overcurrent protection
• Package: SMD (Surface Mount Device)
• Essence: Provides protection against overcurrent events in electronic circuits
• Packaging/Quantity: Typically packaged in reels of 3000 units

Specifications

• Rated Voltage: 72V
• Hold Current: 200mA
• Trip Current: 400mA
• Maximum Current: 3A
• Operating Temperature Range: -40°C to 85°C
• Resistance: <0.5Ω

Detailed Pin Configuration

The MF-RX020/72-2 has a standard SMD pin configuration with two terminals for surface mounting on PCBs.

Functional Features

• Resettable: Automatically resets after the fault condition is removed
• Overcurrent Protection: Safeguards electronic circuits from excessive current flow
• Compact Design: Space-saving SMD package suitable for modern electronics

Advantages and Disadvantages

Advantages

• Reliable overcurrent protection
• Automatic reset feature reduces maintenance requirements
• Compact size ideal for space-constrained applications

Disadvantages

• Limited maximum current handling capability compared to traditional fuses
• Sensitive to ambient temperature variations

Working Principles

The MF-RX020/72-2 operates based on the principle of PTC (Positive Temperature Coefficient) thermistors. When an overcurrent event occurs, the device's resistance increases, 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-RX020/72-2 is widely used in various electronic devices and systems, including: - Consumer electronics - Automotive electronics - Industrial control systems - Telecommunications equipment - Power supplies

Detailed and Complete Alternative Models

• MF-RX010/72-2: Lower hold and trip currents for more sensitive applications
• MF-RX030/72-2: Higher current handling capability for more demanding circuits
• MF-RX020/48-2: Similar specifications but with a lower rated voltage

In conclusion, the MF-RX020/72-2 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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