BZX84B18-HE3-18

Introduction

The BZX84B18-HE3-18 is a semiconductor product that belongs to the category of Zener diodes. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Zener Diode
• Use: Voltage regulation and protection in electronic circuits
• Characteristics: Low leakage current, precise voltage regulation, small package size
• Package: SOT-23
• Essence: Semiconductor device for maintaining a stable voltage across a load
• Packaging/Quantity: Available in tape and reel packaging with quantities varying by manufacturer

Specifications

• Voltage: 18V
• Power Dissipation: 350mW
• Operating Temperature Range: -65°C to +150°C
• Zener Voltage Tolerance: ±5%
• Maximum Reverse Leakage Current: 100nA

Detailed Pin Configuration

The BZX84B18-HE3-18 typically has three pins: Anode, Cathode, and No Connection (NC). The Anode is connected to the positive terminal, the Cathode to the negative terminal, and the NC pin is left unconnected.

Functional Features

• Voltage Regulation: Maintains a constant voltage across the load within specified limits.
• Overvoltage Protection: Safeguards sensitive components in electronic circuits from excessive voltage.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Small package size
• Low leakage current

Disadvantages

• Limited power dissipation capability
• Sensitivity to temperature variations

Working Principles

The BZX84B18-HE3-18 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at or above its breakdown voltage.

Detailed Application Field Plans

The BZX84B18-HE3-18 finds applications in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the BZX84B18-HE3-18 include: - BZX84C18-HE3-18 - BZX84B20-HE3-18 - BZX84C20-HE3-18 - BZX84B16-HE3-18 - BZX84C16-HE3-18

In conclusion, the BZX84B18-HE3-18 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and low leakage current make it suitable for various applications, although its limited power dissipation capability and sensitivity to temperature variations should be considered in circuit design.

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