81CNQ040SL Product Overview

Introduction

The 81CNQ040SL is a high-performance Schottky rectifier designed for various power supply applications. This entry provides an in-depth overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Power Electronics
• Use: Rectification in power supply applications
• Characteristics: High performance, low forward voltage drop, fast switching, and high current capability
• Package: TO-247AC
• Essence: Schottky rectifier
• Packaging/Quantity: Available in reels or tubes, quantity varies based on supplier

Specifications

• Voltage Rating: 40V
• Current Rating: 80A
• Forward Voltage Drop: Typically 0.65V at 40A
• Reverse Leakage Current: 50µA maximum at 40V
• Operating Temperature Range: -55°C to 175°C
• Storage Temperature Range: -55°C to 175°C

Detailed Pin Configuration

The 81CNQ040SL follows the standard pin configuration for TO-247AC packages: 1. Anode 2. Cathode 3. Anode

Functional Features

• High current capability
• Low forward voltage drop
• Fast switching speed
• Excellent thermal performance

Advantages and Disadvantages

Advantages

• High efficiency due to low forward voltage drop
• Suitable for high-frequency applications
• Enhanced thermal management
• Robust and reliable performance

Disadvantages

• Relatively larger package size compared to SMD alternatives
• Higher cost compared to standard diodes

Working Principles

The 81CNQ040SL 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. When a forward bias is applied, the Schottky barrier facilitates rapid electron flow, enabling efficient rectification.

Detailed Application Field Plans

The 81CNQ040SL is well-suited for various power supply applications, including: - Switch-mode power supplies - Uninterruptible power supplies (UPS) - Inverters - Motor drives - Solar inverters

Detailed and Complete Alternative Models

For users seeking alternative models, the following options can be considered: 1. 81CNQ030SL: Lower voltage rating (30V) with similar current capabilities 2. 81CNQ060SL: Higher voltage rating (60V) with similar current capabilities 3. 81CNQ080SL: Higher voltage rating (80V) with similar current capabilities

In conclusion, the 81CNQ040SL offers high-performance rectification capabilities suitable for diverse power supply applications. Its robust characteristics, functional features, and wide application field make it a valuable component in modern power electronics systems.

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