MF-R250-2-99: Product Overview and Specifications

Introduction

The MF-R250-2-99 is a resettable fuse belonging to the category of electronic components. It is designed to protect electrical circuits from overcurrent conditions and short circuits, ensuring the safety and reliability of electronic devices.

Basic Information Overview

• Category: Resettable Fuse
• Use: Protection against overcurrent and short circuits in electrical circuits
• Characteristics: Resettable, reliable, compact
• Package: SMD (Surface Mount Device)
• Essence: Ensuring circuit protection and device safety
• Packaging/Quantity: Typically supplied in reels of 3000 pieces

Specifications

• Hold Current: 2.5A
• Trip Current: 5A
• Voltage Rating: 30V
• Operating Temperature Range: -40°C to 85°C
• Resistance: <0.05Ω

Detailed Pin Configuration

The MF-R250-2-99 features a standard SMD pin configuration with two terminals for surface mounting onto printed circuit boards.

Functional Features

• Resettable: Automatically resets after the fault condition is removed
• Reliable: Provides consistent protection against overcurrent events
• Compact: Space-saving design suitable for modern electronic devices

Advantages and Disadvantages

Advantages

• Resettable functionality increases longevity and reduces maintenance costs
• Reliable protection against overcurrent and short circuits
• Compact size allows for integration into small electronic devices

Disadvantages

• Limited voltage and current ratings compared to traditional fuses
• May require careful consideration of trip and hold currents for specific applications

Working Principles

The MF-R250-2-99 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 through the circuit. Once the fault is removed, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

The MF-R250-2-99 is commonly used in various electronic devices and equipment, including: - Consumer electronics - Automotive electronics - Industrial control systems - Telecommunications equipment

Detailed and Complete Alternative Models

• MF-R050-0-99: Lower hold and trip currents for more sensitive applications
• MF-R500-2-99: Higher current ratings for industrial and high-power applications
• MF-R1100-2-99: Increased voltage rating for specific circuit requirements

In conclusion, the MF-R250-2-99 resettable fuse offers reliable overcurrent and short circuit protection in a compact and resettable package, making it an essential component in modern electronic designs.

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