BZX84C20 - Diode Encyclopedia Entry

Introduction

The BZX84C20 is a diode belonging to the category of voltage regulator 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 BZX84C20.

Basic Information Overview

• Category: Voltage Regulator Diode
• Use: The BZX84C20 is commonly used for voltage regulation and protection in electronic circuits.
• Characteristics: It has a low power dissipation and high reliability, making it suitable for various applications.
• Package: SOT-23, SOD-323, and other surface mount packages are available.
• Essence: The essence of the BZX84C20 lies in its ability to regulate voltage and protect sensitive components in electronic circuits.
• Packaging/Quantity: It is typically available in reels or tubes containing a specified quantity of diodes.

Specifications

• Voltage Rating: 20V
• Power Dissipation: 250mW
• Forward Current: 225mA
• Reverse Leakage Current: 5μA
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The BZX84C20 typically has three pins: Anode, Cathode, and No Connection (NC). The pinout configuration is as follows: - Anode (A) - Pin 1 - Cathode (K) - Pin 2 - No Connection (NC) - Pin 3

Functional Features

• Voltage Regulation: The BZX84C20 regulates voltage by maintaining a constant voltage drop across its terminals.
• Overvoltage Protection: It protects sensitive components in a circuit by limiting the voltage across them.
• Low Power Dissipation: It dissipates minimal power during operation, reducing heat generation.

Advantages and Disadvantages

Advantages

• Small form factor
• High reliability
• Low power dissipation
• Wide operating temperature range

Disadvantages

• Limited maximum voltage rating
• May require additional components for specific applications

Working Principles

The BZX84C20 operates based on the principle of Zener breakdown, where it maintains a nearly constant voltage drop across its terminals when reverse biased. This allows it to regulate the voltage in a circuit and provide overvoltage protection.

Detailed Application Field Plans

The BZX84C20 finds extensive use in various electronic applications, including: - Voltage regulation in power supplies - Overvoltage protection in sensor circuits - Signal conditioning in communication systems - Voltage reference in precision measurement equipment

Detailed and Complete Alternative Models

Some alternative models to the BZX84C20 include: - BZX84C10 - BZX84C15 - BZX84C30 - BZX84C50

These alternatives offer different voltage ratings while sharing similar characteristics and package options.

In conclusion, the BZX84C20 is a versatile voltage regulator diode with a wide range of applications and several alternative models available in the market.

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