Vishay Semiconductor Diodes Division
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120NQ045R
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120NQ045R Product Overview

Introduction

The 120NQ045R is a diode belonging to the category of Schottky rectifier diodes. 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 120NQ045R.

Basic Information Overview

  • Category: Schottky Rectifier Diode
  • Use: The 120NQ045R is commonly used in power supply applications, voltage clamping, reverse polarity protection, and freewheeling diodes.
  • Characteristics: It exhibits low forward voltage drop, high current capability, fast switching speed, and low leakage current.
  • Package: The 120NQ045R is typically available in a TO-263AB (D2PAK) package.
  • Essence: It serves as a high-efficiency rectifier for various power electronics applications.
  • Packaging/Quantity: The diode is usually packaged individually or in reels, with quantities varying based on manufacturer specifications.

Specifications

  • Voltage Rating: 45V
  • Current Rating: 120A
  • Forward Voltage Drop: Typically around 0.55V at 60A
  • Reverse Leakage Current: Maximum of 100µA at 45V
  • Operating Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The 120NQ045R typically has three pins: 1. Anode (A) 2. Cathode (K) 3. Gate (G)

Functional Features

  • Low forward voltage drop ensures high efficiency.
  • Fast switching speed allows for rapid response in power supply applications.
  • High current capability enables it to handle large currents without significant voltage drop.

Advantages and Disadvantages

Advantages

  • High efficiency due to low forward voltage drop.
  • Fast switching speed for rapid response in circuits.
  • High current capability suitable for power electronics applications.

Disadvantages

  • Higher cost compared to standard silicon rectifier diodes.
  • Sensitive to overvoltage conditions, requiring additional protection circuitry in some applications.

Working Principles

The 120NQ045R operates based on the Schottky barrier principle, where the metal-semiconductor junction results in lower forward voltage drop compared to conventional PN-junction diodes. When forward biased, it allows current flow with minimal voltage loss, making it suitable for high-efficiency applications.

Detailed Application Field Plans

The 120NQ045R finds extensive use in the following application fields: - Power supplies and converters - Voltage clamping circuits - Reverse polarity protection in automotive and industrial systems - Freewheeling diodes in motor drive circuits

Detailed and Complete Alternative Models

Some alternative models to the 120NQ045R include: - 100SQ045: Similar specifications with a slightly lower current rating - 150NQ060: Higher voltage and current rating for more demanding applications - 120NQ040: Lower voltage rating with similar current capabilities

In conclusion, the 120NQ045R is a versatile Schottky rectifier diode with high current capability, low forward voltage drop, and fast switching speed, making it suitable for various power electronics applications.

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技術ソリューションにおける 120NQ045R の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure, here are 10 common questions and answers related to the application of 120NQ045R in technical solutions:

  1. What is the maximum continuous forward current rating for 120NQ045R?

    • The maximum continuous forward current rating for 120NQ045R is 120A.

  2. What is the reverse recovery time of 120NQ045R?

    • The reverse recovery time of 120NQ045R is typically 35ns.

  3. What is the maximum junction temperature for 120NQ045R?

    • The maximum junction temperature for 120NQ045R is 175°C.

  4. What type of package does 120NQ045R come in?

    • 120NQ045R comes in a TO-263 (D2PAK) package.

  5. What is the voltage rating of 120NQ045R?

    • The voltage rating of 120NQ045R is 45V.

  6. Can 120NQ045R be used in high-frequency applications?

    • Yes, 120NQ045R is suitable for high-frequency applications due to its fast switching characteristics.

  7. Is 120NQ045R suitable for use in power supplies?

    • Yes, 120NQ045R is commonly used in power supply applications due to its high current rating and low forward voltage drop.

  8. What are the typical applications for 120NQ045R?

    • Typical applications for 120NQ045R include DC/DC converters, motor drives, and freewheeling diodes.

  9. Does 120NQ045R require a heatsink for operation?

    • It is recommended to use a heatsink with 120NQ045R, especially in high-power applications, to ensure proper thermal management.

  10. What are the key advantages of using 120NQ045R in technical solutions?

    • The key advantages of using 120NQ045R include low forward voltage drop, high current capability, and fast switching speed, making it suitable for high-efficiency and high-frequency designs.