MF-R055/90U-2

Introduction

The MF-R055/90U-2 is a resettable fuse belonging to the category of electronic components. This device is designed to protect circuits from overcurrent and short circuit conditions, ensuring the safety and reliability of electronic systems.

Basic Information Overview

• Category: Electronic Components
• Use: Overcurrent and Short Circuit Protection
• Characteristics: Resettable, Reliable, Compact
• Package: Radial Leaded, Surface Mount
• Essence: Ensuring Circuit Safety
• Packaging/Quantity: Available in Tape and Reel Packaging, Quantity Varies

Specifications

• Operating Voltage: 6V
• Hold Current: 0.55A
• Trip Current: 1.1A
• Max Current: 40A
• Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

The MF-R055/90U-2 features a standard radial leaded or surface mount package with two pins. The pin configuration is as follows: - Pin 1: Connected to the positive terminal - Pin 2: Connected to the negative terminal

Functional Features

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

Advantages and Disadvantages

Advantages

• Resettable functionality increases longevity
• Reliable protection against overcurrent and short circuits
• Compact size allows for versatile integration

Disadvantages

• Limited maximum current handling compared to non-resettable fuses
• Sensitive to temperature variations in extreme conditions

Working Principles

The MF-R055/90U-2 operates based on the principle of positive temperature coefficient (PTC) thermistors. When an overcurrent or short circuit occurs, the device heats up, causing its resistance to increase significantly, effectively limiting the current flow and protecting the circuit. Once the fault is removed, the device cools down and returns to its low-resistance state, ready for normal operation.

Detailed Application Field Plans

The MF-R055/90U-2 is widely used in various electronic applications, including: - Consumer Electronics - Automotive Electronics - Industrial Control Systems - Telecommunications Equipment - Power Supplies

Detailed and Complete Alternative Models

• MF-R005/72-0
• MF-R010/600U-2
• MF-R020/240U-2
• MF-R030/240U-2
• MF-R040/72U-2

In conclusion, the MF-R055/90U-2 resettable fuse offers reliable overcurrent and short circuit protection in a compact and versatile package, making it an essential component in modern electronic systems.

Word Count: 345