STB21NK50Z

Introduction

The STB21NK50Z is a power MOSFET belonging to the category of electronic components. It is widely used in various applications due to its unique characteristics and functional features.

Basic Information Overview

• Category: Power MOSFET
• Use: The STB21NK50Z is used as a switching device in power supply, motor control, and lighting applications.
• Characteristics: This MOSFET offers low on-resistance, high switching speed, and low gate charge, making it suitable for high-efficiency power management.
• Package: The STB21NK50Z is available in a TO-220 package, which provides good thermal performance and ease of mounting.
• Essence: Its essence lies in providing efficient power switching capabilities in various electronic circuits.
• Packaging/Quantity: Typically supplied in reels or tubes, the quantity per package varies based on manufacturer specifications.

Specifications

• Voltage Rating: 500V
• Current Rating: 21A
• On-Resistance: 0.117Ω
• Gate Charge: 40nC
• Operating Temperature: -55°C to 150°C
• Package Type: TO-220

Detailed Pin Configuration

The STB21NK50Z follows the standard pin configuration for a TO-220 package: 1. Source (S) 2. Gate (G) 3. Drain (D)

Functional Features

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

Advantages and Disadvantages

Advantages

• High efficiency in power management applications
• Fast switching speed
• Reliable and robust performance

Disadvantages

• Sensitive to voltage and current spikes
• Requires careful consideration of driving circuitry to prevent damage

Working Principles

The STB21NK50Z operates based on the principle of field-effect transistors, where the voltage applied to the gate terminal controls the flow of current between the source and drain terminals. By modulating the gate voltage, the MOSFET can efficiently switch high-power loads in various electronic circuits.

Detailed Application Field Plans

The STB21NK50Z finds extensive use in the following application fields: - Power Supplies: Utilized in switch-mode power supplies for efficient voltage regulation and power conversion. - Motor Control: Employed in motor drive circuits for controlling the speed and direction of motors in industrial and automotive applications. - Lighting: Integrated into LED driver circuits to regulate the brightness and power consumption of LED lighting systems.

Detailed and Complete Alternative Models

• STB20NM50FD: Offers similar performance with a slightly lower on-resistance.
• STB25NM50N: Provides higher current rating and lower on-resistance for more demanding applications.
• STB18N60M2: Suitable for applications requiring a lower voltage rating and moderate current handling capability.

In conclusion, the STB21NK50Z power MOSFET serves as a crucial component in modern electronic systems, enabling efficient power management and control across diverse applications.

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