BZX85C51 - Diode Encyclopedia Entry

Introduction

The BZX85C51 diode is a crucial component in electronic circuits, belonging to the category of Zener 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 BZX85C51 diode.

Basic Information Overview

• Category: Zener diode
• Use: Voltage regulation, voltage reference, and surge protection
• Characteristics: Sharp breakdown voltage, low reverse leakage current, high reliability
• Package: Axial leaded package
• Essence: Semiconductor diode
• Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

• Voltage: 51V
• Power Dissipation: 1.3W
• Zener Impedance: 10Ω
• Operating Temperature Range: -65°C to +200°C
• Tolerance: ±5%

Detailed Pin Configuration

The BZX85C51 diode has an axial leaded package with two leads. The cathode is denoted by a band on one end of the diode body.

Functional Features

• Voltage Regulation: Maintains a constant output voltage under varying load conditions.
• Surge Protection: Provides protection against voltage spikes and surges.
• Voltage Reference: Offers a stable voltage reference for precision circuitry.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• High reliability
• Low reverse leakage current

Disadvantages

• Limited power dissipation capability
• Sensitive to temperature variations

Working Principles

The BZX85C51 operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at the specified breakdown voltage.

Detailed Application Field Plans

The BZX85C51 diode finds extensive use in various applications, including: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Voltage reference in precision measurement equipment

Detailed and Complete Alternative Models

Some alternative models to the BZX85C51 diode include: - 1N4740A (10V) - 1N4733A (5.1V) - BZX79C51 (51V)

In conclusion, the BZX85C51 diode serves as a critical component in electronic circuits, providing precise voltage regulation, surge protection, and voltage reference capabilities. Its characteristics, specifications, and application versatility make it a valuable asset in various electronic designs.

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