MMBZ4703-E3-18

Introduction

The MMBZ4703-E3-18 is a diode belonging to the category of Zener diodes. It is commonly used for voltage regulation and protection in various electronic circuits. 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 MMBZ4703-E3-18.

Basic Information Overview

• Category: Zener Diode
• Use: Voltage regulation and protection in electronic circuits
• Characteristics:
  • Reverse voltage: 20V
  • Power dissipation: 225mW
  • Operating temperature: -65°C to +150°C
• Package: SOT-23
• Essence: The MMBZ4703-E3-18 is designed to provide stable and reliable voltage regulation in electronic circuits.
• Packaging/Quantity: Available in reels with varying quantities.

Specifications

• Reverse Voltage (Vz): 20V
• Power Dissipation (Pd): 225mW
• Operating Temperature Range: -65°C to +150°C
• Zener Voltage Tolerance: ±5%
• Maximum Reverse Leakage Current: 100nA
• Maximum Dynamic Impedance: 60Ω

Detailed Pin Configuration

The MMBZ4703-E3-18 Zener diode has three pins: 1. Anode (A): Connected to the positive terminal of the circuit. 2. Cathode (K): Connected to the negative terminal of the circuit. 3. No Connection (NC): Not internally connected and left open.

Functional Features

• Stable Voltage Regulation: The diode maintains a constant voltage across its terminals when operated within its specified parameters.
• Overvoltage Protection: It protects sensitive components in the circuit by limiting the voltage across them.
• Compact Size: The SOT-23 package makes it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Compact package size
• Low reverse leakage current

Disadvantages

• Limited power dissipation capability
• Sensitivity to temperature variations

Working Principles

The MMBZ4703-E3-18 operates based on the Zener effect, where it maintains a nearly constant voltage drop across its terminals when it is reverse-biased and operated within its specified parameters. When the voltage across the diode reaches its Zener voltage, it conducts heavily, effectively clamping the voltage to the Zener voltage.

Detailed Application Field Plans

The MMBZ4703-E3-18 is widely used 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 MMBZ4703-E3-18 include: - BZX84C20 - 1N4744A - MM3Z20VT1G - BZT52C20S

In conclusion, the MMBZ4703-E3-18 Zener diode is a crucial component in electronic circuits requiring stable voltage regulation and overvoltage protection. Its compact size and precise voltage regulation make it suitable for a wide range of applications.

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