STF18N55M5 - Product Overview and Specifications

Introduction

The STF18N55M5 is a power MOSFET belonging to the category of semiconductor devices. It is widely used in various electronic applications due to its unique characteristics and performance.

Basic Information Overview

• Category: Power MOSFET
• Use: The STF18N55M5 is utilized as a switching device in power supply, motor control, and other high-power applications.
• Characteristics: This MOSFET offers low on-state resistance, high switching speed, and low gate charge, making it suitable for high-efficiency power conversion.
• Package: The STF18N55M5 is available in a TO-220 package, providing robustness and thermal performance.
• Essence: Its essence lies in enabling efficient power management and control in various electronic systems.
• Packaging/Quantity: Typically supplied in reels or tubes, the quantity per package varies based on the supplier's specifications.

Specifications

• Voltage Rating: 550V
• Current Rating: 18A
• On-State Resistance (RDS(on)): 0.09 Ohms
• Gate-Source Voltage (VGS): ±20V
• Operating Temperature Range: -55°C to 150°C
• Package Type: TO-220

Detailed Pin Configuration

The STF18N55M5 features a standard TO-220 pin configuration: 1. Source (S) 2. Gate (G) 3. Drain (D)

Functional Features

• Low On-State Resistance: Enables minimal power dissipation and high efficiency in power switching applications.
• High Switching Speed: Facilitates rapid switching transitions, reducing switching losses.
• Low Gate Charge: Allows for efficient control of the MOSFET, enhancing overall system performance.

Advantages and Disadvantages

Advantages

• High efficiency in power conversion
• Robust TO-220 packaging for thermal management
• Suitable for high-power applications

Disadvantages

• Relatively higher cost compared to standard MOSFETs
• May require careful consideration of drive circuitry due to high gate-source voltage rating

Working Principles

The STF18N55M5 operates based on the principles of field-effect transistors, utilizing the control of the gate voltage to modulate the conductivity between the source and drain terminals. This enables efficient switching and control of high-power circuits.

Detailed Application Field Plans

The STF18N55M5 finds extensive application in the following fields: - Power supplies and converters - Motor control systems - Renewable energy systems - Industrial automation

Detailed and Complete Alternative Models

• STF17N65M5: Similar specifications with a slightly lower current rating
• STF20N50M5: Higher current rating with comparable voltage and resistance characteristics
• STF15N80DM2: Lower voltage rating with similar current and resistance parameters

In conclusion, the STF18N55M5 power MOSFET serves as a crucial component in high-power electronic systems, offering exceptional performance and reliability. Its unique characteristics and versatile applications make it an indispensable choice for power management and control in various industries.

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