BZX84C18-7: Product Overview and Specifications

Introduction

The BZX84C18-7 is a semiconductor product belonging to the category of Zener diodes. This component is widely used in electronic circuits for voltage regulation and protection due to its unique characteristics.

Basic Information Overview

• Category: Zener Diode
• Use: Voltage regulation and protection in electronic circuits
• Characteristics: Precise voltage regulation, low leakage current, small package size
• Package: SOT-23, SMD (Surface Mount Device)
• Essence: Regulating and stabilizing voltage in electronic circuits
• Packaging/Quantity: Available in reels of 3000 units

Specifications

• Voltage: 18V
• Power Dissipation: 350mW
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +150°C
• Forward Voltage: 900mV at 10mA

Detailed Pin Configuration

The BZX84C18-7 Zener diode 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, left open

Functional Features

• Voltage Regulation: Maintains a constant voltage across the diode
• Protection: Safeguards sensitive components from voltage spikes
• Stability: Provides stable voltage output under varying conditions

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited power dissipation capability
• Vulnerable to high reverse currents

Working Principles

The BZX84C18-7 operates based on the Zener effect, where it maintains a constant voltage drop across its terminals by allowing controlled breakdown under reverse bias conditions.

Detailed Application Field Plans

The BZX84C18-7 Zener diode finds extensive applications in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage reference circuits

Detailed and Complete Alternative Models

Some alternative models to the BZX84C18-7 Zener diode include: - 1N4744A: 15V Zener diode - BZT52C18S: 18V Zener diode - MMBZ5248B: 18V Zener diode

In conclusion, the BZX84C18-7 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and protection. Its compact size and stable performance make it an essential part of modern electronic designs.

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