MF-LS190RU: Product Overview and Specifications

Introduction

The MF-LS190RU is a versatile electronic component that belongs to the category of resettable fuses. This entry provides an in-depth overview of the product, including its basic information, specifications, detailed 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, reliable
• Package: Surface mount device (SMD)
• Essence: Provides overcurrent protection by interrupting the flow of current when a fault occurs
• Packaging/Quantity: Typically available in reels of 3000 units

Specifications

• Operating Voltage: 6V to 60V
• Hold Current: 1.9A
• Trip Current: 3.8A
• Maximum Current: 40A
• Operating Temperature: -40°C to 85°C
• Resistance: <0.1Ω

Detailed Pin Configuration

The MF-LS190RU features a standard SMD pin configuration with two terminals for easy integration into circuit boards. The pinout is as follows: - Pin 1: Input/Anode - Pin 2: Output/Cathode

Functional Features

• Resettable: Automatically resets after the fault condition is removed
• Overcurrent Protection: Safeguards electronic circuits from excessive current
• Compact Design: Space-saving SMD package for efficient PCB layout

Advantages and Disadvantages

Advantages

• Reliable overcurrent protection
• Automatic reset reduces maintenance efforts
• Compact size for space-constrained applications

Disadvantages

• Limited maximum current handling compared to traditional fuses
• Sensitive to voltage fluctuations

Working Principles

The MF-LS190RU operates based on the principle of positive temperature coefficient (PTC) thermistors. When the current exceeds the trip threshold, the PTC material heats up, causing a sharp increase in resistance, which effectively limits the current flow. Once the fault is cleared, the PTC material cools down, allowing the device to reset.

Detailed Application Field Plans

The MF-LS190RU is widely used in various electronic devices and systems, including: - Consumer electronics - Automotive electronics - Industrial control systems - Power supplies - Battery management systems

Detailed and Complete Alternative Models

For applications requiring different specifications or form factors, several alternative models are available, including: - MF-LS110RU: Lower hold current for sensitive electronics - MF-LS250RU: Higher current handling for industrial applications - MF-LS600RU: Extended voltage and current ratings for demanding environments

In conclusion, the MF-LS190RU resettable fuse offers reliable overcurrent protection in a compact and resettable package, making it suitable for a wide range of electronic applications.

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