MF-LS190 Product Overview

Introduction

MF-LS190 is a multifunctional electronic component that belongs to the category of resettable fuses. It is widely used in various electronic devices and circuits for overcurrent protection. This entry provides an overview of the basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models of MF-LS190.

Basic Information Overview

• Category: Resettable Fuse
• Use: Overcurrent Protection in Electronic Devices and Circuits
• Characteristics: Resettable, Low Resistance, Fast Response
• Package: SMD (Surface Mount Device)
• Essence: Polymer PTC (Positive Temperature Coefficient) Material
• Packaging/Quantity: Typically available in reels of 3000 pieces

Specifications

• Operating Voltage: 6V to 60V
• Hold Current: 1.9A
• Trip Current: 3.8A
• Maximum Current: 100A
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The MF-LS190 has two terminals for connection. The pin configuration is as follows: - Pin 1: Input/Anode - Pin 2: Output/Cathode

Functional Features

• Resettable: Automatically resets after the fault condition is removed.
• Low Resistance: Provides low impedance during normal operation.
• Fast Response: Quickly trips in case of overcurrent conditions.

Advantages and Disadvantages

Advantages

• Automatic Resetting
• Low Impedance
• Fast Reaction Time

Disadvantages

• Limited Maximum Current Handling Capacity
• Sensitivity to Ambient Temperature Changes

Working Principles

The MF-LS190 operates based on the principle of positive temperature coefficient. When the current exceeds the trip current, the device heats up, causing its resistance to increase rapidly, which effectively limits the current flow and protects the circuit from damage. Once the fault condition is removed, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

The MF-LS190 is commonly used in various electronic applications such as: - Battery Packs - Power Supplies - USB Ports - Motor Control Circuits - LED Lighting Systems

Detailed and Complete Alternative Models

Some alternative models to MF-LS190 include: - MF-LS110 - MF-LS250 - MF-LS500 - MF-LS800

These alternatives offer varying hold currents, trip currents, and maximum current handling capacities to suit different application requirements.

In conclusion, the MF-LS190 resettable fuse is a crucial component in modern electronic devices and circuits, providing reliable overcurrent protection with its unique characteristics and functional features. Understanding its specifications, pin configuration, advantages, disadvantages, working principles, application field plans, and alternative models is essential for effective utilization in diverse electronic applications.

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