STP9NK70Z - Semiconductor Device Encyclopedia Entry

Introduction

The STP9NK70Z is a power MOSFET belonging to the category of semiconductor devices. 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 the STP9NK70Z.

Basic Information Overview

• Category: Power MOSFET
• Use: The STP9NK70Z is used as a high-voltage N-channel enhancement-mode power MOSFET designed for high-speed switching applications.
• Characteristics: It exhibits low input and output capacitance, fast switching speed, and low on-state resistance, making it suitable for use in power supplies, lighting systems, motor control, and other high-frequency switching applications.
• Package: The STP9NK70Z is available in a TO-220 package.
• Essence: Its essence lies in its ability to efficiently handle high voltages and currents while minimizing power losses.
• Packaging/Quantity: The STP9NK70Z is typically packaged in tubes or reels containing a specific quantity, such as 50 or 100 units per package.

Specifications

• Voltage Rating: 700V
• Continuous Drain Current: 9A
• On-State Resistance: 1.15Ω
• Gate Threshold Voltage: 3V
• Total Gate Charge: 16nC
• Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The STP9NK70Z features a standard TO-220 pin configuration with three pins: gate (G), drain (D), and source (S).

+---+---+ | G | D | +---|---+ | S | +---+

Functional Features

• High Voltage Capability: The STP9NK70Z can withstand high voltage levels, making it suitable for high-power applications.
• Fast Switching Speed: Its low input and output capacitance enable fast switching, contributing to efficient operation in high-frequency circuits.
• Low On-State Resistance: The low on-state resistance minimizes power losses and enhances overall efficiency.

Advantages and Disadvantages

Advantages

• High voltage capability
• Fast switching speed
• Low on-state resistance
• Suitable for high-frequency applications

Disadvantages

• May require additional circuitry for driving the gate due to its high gate threshold voltage

Working Principles

The STP9NK70Z operates based on the principles of field-effect transistors, utilizing the electric field at the gate to control the flow of current between the drain and source terminals. When a sufficient voltage is applied to the gate, the device enters the conducting state, allowing current to flow through.

Detailed Application Field Plans

The STP9NK70Z finds extensive use in various applications, including: - Switched-mode power supplies - Lighting systems - Motor control - High-frequency inverters - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models to the STP9NK70Z include: - IRF840 - FQP30N06L - IRL540

In conclusion, the STP9NK70Z power MOSFET offers high-voltage capability, fast switching speed, and low on-state resistance, making it suitable for a wide range of high-power and high-frequency applications.

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