BZX79C4V3 Diode Encyclopedia Entry

Introduction

The BZX79C4V3 diode is a crucial component in electronic circuits, providing voltage regulation and protection. This entry provides an in-depth overview of the BZX79C4V3 diode, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The BZX79C4V3 diode belongs to the category of Zener diodes, which are widely used for voltage regulation and transient voltage suppression in electronic circuits.

Basic Information Overview

• Use: Voltage regulation and transient voltage suppression
• Characteristics: Zener diode with a 4.3V nominal voltage
• Package: Axial leaded package
• Essence: Provides stable voltage regulation and protection against voltage spikes
• Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

• Nominal Voltage: 4.3V
• Power Dissipation: 500mW
• Forward Voltage: 1.2V
• Zener Test Current: 5mA
• Operating Temperature Range: -65°C to +200°C

Detailed Pin Configuration

The BZX79C4V3 diode has an axial leaded package with two leads. The cathode is typically marked with a band around one end of the diode body.

Functional Features

• Provides precise voltage regulation at 4.3V
• Offers protection against voltage surges and transients
• Low forward voltage ensures minimal power loss

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Compact size
• Wide operating temperature range

Disadvantages

• Limited power dissipation capability
• Sensitive to excessive current and voltage

Working Principles

The BZX79C4V3 diode operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when reverse-biased. This allows it to regulate the voltage across a circuit, ensuring a stable output.

Detailed Application Field Plans

The BZX79C4V3 diode finds extensive use in various applications, including: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Signal clamping and limiting - Voltage reference in precision instruments

Detailed and Complete Alternative Models

Some alternative models to the BZX79C4V3 diode include: - 1N4731A (4.3V Zener diode) - BZT52C4V3 (4.3V Zener diode) - MMBZ5231B (4.3V Zener diode)

In conclusion, the BZX79C4V3 diode is a vital component in electronic circuits, offering precise voltage regulation and protection against voltage spikes. Its compact size and wide operating temperature range make it suitable for diverse applications, from power supplies to precision instruments.

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