MF-SM008/250F-2 Product Overview

Introduction

The MF-SM008/250F-2 belongs to the category of surface mount resettable fuses. This product is widely used in various electronic devices and systems for overcurrent protection. It possesses unique characteristics, packaging, and quantity specifications that make it suitable for a wide range of applications.

Basic Information Overview

• Category: Surface Mount Resettable Fuse
• Use: Overcurrent Protection in Electronic Devices
• Characteristics: Resettable, Surface Mountable
• Package: Tape and Reel
• Essence: Provides Overcurrent Protection
• Packaging/Quantity: 250 pieces per reel

Specifications

• Voltage Rating: 8V
• Hold Current: 0.25A
• Trip Current: 0.5A
• Max Current: 40A
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The MF-SM008/250F-2 features a standard surface mount configuration with two terminals for easy integration into circuit boards.

Functional Features

• Resettable Fuse: The MF-SM008/250F-2 can be automatically reset after the fault condition is removed, providing continuous protection.
• Surface Mountable: Designed for easy and efficient surface mounting on PCBs, saving space and simplifying assembly.

Advantages and Disadvantages

Advantages

• Automatic Reset: Eliminates the need for manual replacement after a fault condition.
• Space-Saving: Surface mountable design conserves PCB space.
• Wide Operating Temperature Range: Suitable for diverse environmental conditions.

Disadvantages

• Limited Max Current: Not suitable for high-current applications exceeding 40A.

Working Principles

The MF-SM008/250F-2 operates based on the principle of positive temperature coefficient (PTC) resistance. When an overcurrent condition occurs, the device heats up, causing its resistance to increase and limit 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-SM008/250F-2 is commonly used in: - Consumer Electronics - Automotive Electronics - Industrial Control Systems - Telecommunications Equipment

Detailed and Complete Alternative Models

• MF-SM005/200F-2: 5V voltage rating, 0.2A hold current
• MF-SM012/300F-2: 12V voltage rating, 0.3A hold current
• MF-SM020/500F-2: 20V voltage rating, 0.5A hold current

In conclusion, the MF-SM008/250F-2 is a versatile surface mount resettable fuse offering automatic reset functionality and reliable overcurrent protection. Its compact design and wide operating temperature range make it suitable for various electronic applications.

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