BZX84C18-G3-18

Introduction

The BZX84C18-G3-18 is a semiconductor product belonging to the category of Zener diodes. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, 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 material with specific doping for controlled breakdown voltage
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

• Voltage: 18V
• Power Dissipation: 250mW
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +150°C
• Storage Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The BZX84C18-G3-18 typically has three pins: anode, cathode, and a no-connect pin. The anode is connected to the positive terminal of the circuit, the cathode to the negative terminal, and the no-connect pin is left unconnected.

Functional Features

• Voltage Regulation: Maintains a constant output voltage across a wide range of load currents.
• Overvoltage Protection: Safeguards sensitive components by limiting the voltage across them.
• Stability: Provides stable performance over temperature and current variations.

Advantages and Disadvantages

Advantages

• Small package size allows for space-efficient circuit design.
• Precise voltage regulation enhances the reliability of electronic systems.
• Low leakage current minimizes power consumption.

Disadvantages

• Limited power dissipation capability compared to larger diode packages.
• Higher cost per unit compared to standard rectifier diodes.

Working Principles

The BZX84C18-G3-18 operates based on the principle of the Zener effect, where a heavily doped semiconductor junction exhibits a controlled breakdown voltage. When the voltage across the diode reaches its specified Zener voltage, it begins conducting, effectively regulating the voltage across the circuit.

Detailed Application Field Plans

The BZX84C18-G3-18 finds applications in various electronic circuits, including: - Voltage regulators in power supplies - Overvoltage protection in communication systems - Signal clamping and limiting circuits in audio equipment - Voltage reference sources in precision measurement instruments

Detailed and Complete Alternative Models

Some alternative models to the BZX84C18-G3-18 include: - BZX84C15-G3-18 (15V Zener voltage) - BZX84C22-G3-18 (22V Zener voltage) - BZX84C30-G3-18 (30V Zener voltage)

In conclusion, the BZX84C18-G3-18 Zener diode offers precise voltage regulation and overvoltage protection in a compact package, making it suitable for a wide range of electronic applications.

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