MMSZ5251B-HE3-18

Introduction

The MMSZ5251B-HE3-18 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: SOD-123
• Essence: Regulating voltage in electronic circuits
• Packaging/Quantity: Available in tape and reel packaging with quantities varying by manufacturer

Specifications

• Voltage: 18V
• Power Dissipation: 500mW
• Operating Temperature Range: -65°C to +150°C
• Zener Impedance: 40Ω
• Maximum Reverse Leakage Current: 100nA

Detailed Pin Configuration

The MMSZ5251B-HE3-18 Zener diode has a standard SOD-123 package with two pins. The pinout configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Precise voltage regulation at 18V
• Low reverse leakage current
• Fast response time to voltage fluctuations
• Small form factor for space-constrained applications

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited power dissipation capability
• Sensitivity to temperature variations

Working Principles

The MMSZ5251B-HE3-18 Zener diode operates based on the principle of the Zener effect, where it maintains a constant voltage drop across its terminals when reverse-biased. This allows it to regulate voltage in electronic circuits, protecting sensitive components from overvoltage conditions.

Detailed Application Field Plans

The MMSZ5251B-HE3-18 Zener diode finds extensive use in various electronic applications, including: - Voltage regulation in power supplies - Overvoltage protection in communication equipment - Signal clamping in audio and video circuits - Voltage reference in precision measurement instruments

Detailed and Complete Alternative Models

• MMSZ5248B-HE3-18: 15V Zener diode with similar characteristics
• MMSZ5264B-HE3-18: 24V Zener diode suitable for higher voltage applications
• BZX84C18LT1G: SOT-23 Zener diode with comparable voltage regulation capabilities

In conclusion, the MMSZ5251B-HE3-18 Zener diode offers precise voltage regulation and protection in a compact package, making it suitable for a wide range of electronic applications.

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