SMCJ51AHE3/9AT - Product Overview and Analysis

Introduction

The SMCJ51AHE3/9AT is a high-performance TVS (transient voltage suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides a comprehensive overview of the SMCJ51AHE3/9AT, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category and Use

Category: TVS Diode
Use: Protection against voltage transients induced by lightning, ESD, and other transient voltage events
Characteristics: High surge capability, low clamping voltage, fast response time
Package: DO-214AB (SMC)
Essence: Transient voltage suppression
Packaging/Quantity: Tape and Reel, 500 units per reel

Specifications

• Peak Pulse Power: 1500 W
• Breakdown Voltage: 56.1 V
• Clamping Voltage: 90.9 V
• Operating Temperature Range: -55°C to +150°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SMCJ51AHE3/9AT TVS diode has a standard DO-214AB (SMC) package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast response time
• Low clamping voltage
• High surge capability
• RoHS compliant

Advantages and Disadvantages

Advantages: - Effective protection against voltage transients - Fast response time ensures minimal damage to protected circuits - RoHS compliant, environmentally friendly

Disadvantages: - May require additional circuitry for comprehensive overvoltage protection

Working Principles

The SMCJ51AHE3/9AT operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the TVS diode rapidly conducts current, diverting the excess energy away from the protected circuit. This action effectively clamps the voltage to a safe level, protecting the downstream components.

Detailed Application Field Plans

The SMCJ51AHE3/9AT is widely used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

For applications requiring similar transient voltage suppression capabilities, the following alternative models can be considered: - P6KE51CA: 600 W TVS Diode, 51 V - 1.5KE51CA: 1500 W TVS Diode, 51 V - 5KP51CA: 5000 W TVS Diode, 51 V

In conclusion, the SMCJ51AHE3/9AT TVS diode offers robust transient voltage protection with its high surge capability, low clamping voltage, and fast response time. Its application spans across diverse industries, providing essential protection for sensitive electronic equipment.

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