BZX84C18 TR

Introduction

The BZX84C18 TR is a voltage regulator diode that belongs to the category of electronic components. 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: Electronic Components
• Use: Voltage Regulation
• Characteristics: Low power dissipation, high reliability, small package size
• Package: SOT-23
• Essence: Voltage regulation for electronic circuits
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Voltage Rating: 18V
• Power Dissipation: 250mW
• Forward Voltage Drop: 0.7V
• Reverse Leakage Current: 5μA
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The BZX84C18 TR has three pins: 1. Anode (A): Connects to the positive terminal of the circuit. 2. Cathode (K): Connects to the negative terminal of the circuit. 3. No Connection (NC): Not internally connected.

Functional Features

• Voltage Regulation: Maintains a constant output voltage despite fluctuations in input voltage or load resistance.
• Overvoltage Protection: Safeguards the circuit by limiting the output voltage during voltage spikes.

Advantages and Disadvantages

Advantages

• Small package size allows for space-efficient circuit design.
• High reliability ensures consistent performance.
• Low power dissipation minimizes energy loss.

Disadvantages

• Limited current handling capability compared to larger voltage regulators.
• Susceptible to damage from excessive voltage or current.

Working Principles

The BZX84C18 TR operates based on the principle of zener breakdown, where it maintains a nearly constant voltage across its terminals when reverse biased. This enables it to regulate the voltage in electronic circuits by diverting excess current when the voltage exceeds the specified level.

Detailed Application Field Plans

The BZX84C18 TR finds applications in various electronic devices and systems, including: - Voltage regulation in power supplies - Overvoltage protection in consumer electronics - Signal conditioning in sensor circuits - Voltage reference in analog circuits

Detailed and Complete Alternative Models

Some alternative models to the BZX84C18 TR include: - BZX84C15 TR: 15V Zener Diode - BZX84C22 TR: 22V Zener Diode - BZX84C30 TR: 30V Zener Diode

In conclusion, the BZX84C18 TR is a reliable and compact voltage regulator diode with applications in diverse electronic circuits, offering stable voltage regulation and overvoltage protection.

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