SMBJ120A-M3/5B

Introduction

The SMBJ120A-M3/5B is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used for protecting sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. 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 SMBJ120A-M3/5B.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients in electronic circuits
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: DO-214AA (SMB), SMD/SMT package style
• Essence: Provides robust protection to sensitive electronic components
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Part Number: SMBJ120A-M3/5B
• Voltage - Reverse Standoff (Typ): 120V
• Voltage - Breakdown: 133V
• Clamping Voltage: 193V
• Peak Pulse Current: 10A
• Capacitance: 150pF
• Polarity: Unidirectional
• Operating Temperature: -55°C to +150°C

Detailed Pin Configuration

The SMBJ120A-M3/5B has two pins with standard SMD/SMT package configuration. The pinout is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast response time to transient voltage events
• Low clamping voltage to protect downstream components
• High surge current capability for robust transient suppression

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Compact SMD/SMT package for easy integration into circuit designs
• Wide operating temperature range for versatile applications

Disadvantages

• Unidirectional protection only
• Limited peak pulse current compared to some higher-rated TVS diodes

Working Principles

The SMBJ120A-M3/5B operates by diverting excessive transient current away from sensitive electronic components when a transient voltage event occurs. It achieves this by rapidly clamping the voltage to a safe level, thereby protecting the downstream circuitry.

Detailed Application Field Plans

The SMBJ120A-M3/5B finds extensive use in various applications, including: - Power supply units - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMBJ120A-M3/5B include: - SMAJ120A - P6SMBJ120A - 1.5SMCJ120A - SMCJ120A

In conclusion, the SMBJ120A-M3/5B is a reliable transient voltage suppressor diode that offers effective protection against voltage transients in a wide range of electronic applications.

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