SMDJ51A - Product Overview and Specifications

Introduction

The SMDJ51A is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used for protecting sensitive electronic devices from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides an overview of the SMDJ51A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients induced by lightning, ESD, and other transient voltage events
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: Surface Mount
• Essence: Protecting sensitive electronic devices from voltage transients
• Packaging/Quantity: Typically available in reels or tubes with varying quantities

Specifications

• Part Number: SMDJ51A
• Peak Pulse Power: 3000W
• Breakdown Voltage: 51V
• Operating Voltage: 43.6V
• Maximum Reverse Standoff Voltage: 43.6V
• Reverse Leakage Current: 1µA
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMDJ51A typically follows a standard surface mount diode package configuration with two terminals for connection to the circuit board.

Functional Features

• Fast Response Time: Rapidly responds to transient voltage events, providing quick protection to the connected circuitry.
• Low Clamping Voltage: Limits the voltage across the protected circuit, preventing damage to sensitive components.
• High Surge Current Capability: Can handle high surge currents without degradation, ensuring reliable protection.

Advantages and Disadvantages

Advantages

• Effective protection against transient voltage events
• Fast response time
• Low clamping voltage
• High surge current capability

Disadvantages

• Limited to specific voltage ratings
• Requires proper installation and circuit design for optimal performance

Working Principles

The SMDJ51A operates by diverting excessive transient voltages away from the protected circuitry, thereby limiting the voltage across the circuit to a safe level. When a transient event occurs, the diode rapidly conducts, shunting the excess energy to ground and safeguarding the connected electronics.

Detailed Application Field Plans

The SMDJ51A finds extensive use in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies - Medical devices

Detailed and Complete Alternative Models

• Alternative Model 1: SMDJ48A
• Alternative Model 2: SMDJ54A
• Alternative Model 3: SMDJ58A
• Alternative Model 4: SMDJ64A

These alternative models offer similar transient voltage suppression capabilities with varying breakdown voltages to suit different application requirements.

In conclusion, the SMDJ51A transient voltage suppressor diode offers effective protection against transient voltage events, making it an essential component in safeguarding sensitive electronic devices across various industries.

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