STW21N90K5

Introduction

The STW21N90K5 is a power MOSFET belonging to the category of semiconductor devices. This device is commonly used in various electronic applications due to its unique characteristics and performance capabilities.

Basic Information Overview

• Category: Power MOSFET
• Use: The STW21N90K5 is utilized as a switching element 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 STW21N90K5 is typically available in a TO-247 package, which provides efficient thermal dissipation.
• Essence: The essence of this MOSFET lies in its ability to handle high currents and voltages with minimal power loss.
• Packaging/Quantity: It is commonly packaged individually and sold in quantities suitable for production or prototyping purposes.

Specifications

• Voltage Rating: 900V
• Current Rating: 21A
• On-State Resistance (RDS(on)): 0.19 Ohms
• Gate-Source Voltage (VGS): ±20V
• Operating Temperature Range: -55°C to 150°C
• Package Type: TO-247

Detailed Pin Configuration

The STW21N90K5 features a standard pin configuration with three pins: Gate (G), Drain (D), and Source (S). The physical layout and pin assignment can be found in the datasheet provided by the manufacturer.

Functional Features

• Low On-State Resistance: Enables efficient power transfer and reduces conduction losses.
• High Switching Speed: Facilitates rapid switching transitions, suitable for high-frequency applications.
• Low Gate Charge: Allows for quick and precise control of the MOSFET.

Advantages and Disadvantages

Advantages

• High power handling capability
• Low on-state resistance for improved efficiency
• Fast switching speed for high-frequency applications

Disadvantages

• Sensitivity to voltage spikes and transients
• Potential for thermal issues if not properly heatsinked

Working Principles

The STW21N90K5 operates based on the principles of field-effect transistors, where the application of a voltage at the gate terminal controls the flow of current between the drain and source terminals. By modulating the gate-source voltage, the MOSFET can effectively switch between its on and off states, allowing for precise control of power flow.

Detailed Application Field Plans

The STW21N90K5 finds extensive use in various applications, including: - Switch-mode power supplies - Motor drives - Inverters - Industrial power systems

Detailed and Complete Alternative Models

• STW20NK50Z: Similar power MOSFET with lower voltage rating
• IRFP4668PBF: Alternative MOSFET with comparable specifications
• IXFN38N100Q2: MOSFET offering higher current handling capacity

In conclusion, the STW21N90K5 power MOSFET serves as a crucial component in numerous high-power electronic applications, offering exceptional performance and reliability. Its unique characteristics and functional features make it a preferred choice for designers and engineers seeking efficient power management solutions.

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