SMC Diode Solutions
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81CNQ040SM
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81CNQ040SM

Product Overview

Category

The 81CNQ040SM belongs to the category of Schottky diodes.

Use

It is commonly used in power supply and conversion applications, as well as in various electronic circuits where low forward voltage drop and high switching speed are required.

Characteristics

  • Low forward voltage drop
  • High switching speed
  • High thermal stability
  • Low reverse leakage current

Package

The 81CNQ040SM is typically available in a TO-247 package.

Essence

This diode is essential for efficient power management and control in electronic systems.

Packaging/Quantity

It is usually packaged individually and available in varying quantities depending on the supplier.

Specifications

  • Maximum Average Forward Current: 80A
  • Reverse Voltage: 40V
  • Forward Voltage Drop: 0.75V at 40A
  • Operating Temperature Range: -55°C to 175°C

Detailed Pin Configuration

The 81CNQ040SM has a standard pin configuration with two leads for connection.

Functional Features

  • Fast switching capability
  • Low power dissipation
  • High efficiency
  • Reliable operation under high temperatures

Advantages

  • Reduced power loss
  • Enhanced system efficiency
  • Suitable for high-frequency applications
  • Improved thermal management

Disadvantages

  • Higher cost compared to standard rectifier diodes
  • Sensitive to voltage transients

Working Principles

The 81CNQ040SM operates based on the Schottky barrier principle, where the metal-semiconductor junction allows for faster switching and lower forward voltage drop compared to conventional PN-junction diodes.

Detailed Application Field Plans

This diode is widely used in: - Switching power supplies - DC-DC converters - Motor drive circuits - Solar inverters - Uninterruptible power supplies (UPS) - Power factor correction circuits

Detailed and Complete Alternative Models

  • 81CNQ030SM
  • 81CNQ035SM
  • 81CNQ045SM
  • 81CNQ050SM

In conclusion, the 81CNQ040SM Schottky diode offers high performance and reliability in various power electronics applications, making it an essential component for efficient power management and control.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של 81CNQ040SM בפתרונות טכניים

  1. What is 81CNQ040SM?

    • 81CNQ040SM is a dual Schottky rectifier designed for high frequency and high voltage applications.

  2. What are the key features of 81CNQ040SM?

    • The key features include low forward voltage drop, high frequency operation, and high junction temperature capability.

  3. What are the typical applications of 81CNQ040SM?

    • Typical applications include power factor correction, switch mode power supplies, and freewheeling diodes.

  4. What is the maximum repetitive reverse voltage of 81CNQ040SM?

    • The maximum repetitive reverse voltage is 40V.

  5. What is the maximum average forward current of 81CNQ040SM?

    • The maximum average forward current is 80A.

  6. What is the thermal resistance of 81CNQ040SM?

    • The thermal resistance is typically 1.5°C/W.

  7. What is the storage temperature range for 81CNQ040SM?

    • The storage temperature range is -65°C to +175°C.

  8. Does 81CNQ040SM have a low leakage current?

    • Yes, 81CNQ040SM has a low leakage current.

  9. Can 81CNQ040SM be used in automotive applications?

    • Yes, 81CNQ040SM can be used in automotive applications.

  10. Is 81CNQ040SM RoHS compliant?

    • Yes, 81CNQ040SM is RoHS compliant.