SM5S20AHE3/2D: Product Overview and Analysis

Introduction

The SM5S20AHE3/2D is a high-performance TVS (transient voltage suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning, ESD (electrostatic discharge), and other transient voltage events. This entry provides a comprehensive overview of the SM5S20AHE3/2D, including its product details, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Product Information Overview

• Category: TVS Diode
• Use: Protection against voltage transients
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: SMC (DO-214AB)
• Essence: Transient voltage suppression
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Standoff Voltage: 20V
• Breakdown Voltage: 22.2V
• Peak Pulse Current: 55.6A
• Clamping Voltage: 32.4V
• Operating Temperature Range: -55°C to 150°C
• Compliance: RoHS

Detailed Pin Configuration

The SM5S20AHE3/2D TVS diode has a standard SMC (DO-214AB) package with two pins. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• High Surge Capability: Capable of withstanding high surge currents resulting from transient events.
• Low Clamping Voltage: Provides effective protection by limiting the voltage across the protected circuit.
• Fast Response Time: Rapidly responds to transient voltage events, safeguarding the connected electronics.

Advantages and Disadvantages

Advantages

• Effective protection against transient voltage events
• High surge capability ensures robust performance
• Low clamping voltage minimizes stress on protected circuits

Disadvantages

• Relatively higher cost compared to standard diodes
• Sensitive to reverse polarity connection

Working Principles

The SM5S20AHE3/2D operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting the excess current away from the protected circuit and limiting the voltage across it. This action effectively suppresses the transient voltage, safeguarding the connected electronics.

Detailed Application Field Plans

The SM5S20AHE3/2D is widely used in various applications requiring protection against transient voltage events, including: - Power supplies - Communication systems - Industrial equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SM5S10AHE3/2D: Similar specifications with lower standoff voltage
• SM5S30AHE3/2D: Similar specifications with higher standoff voltage
• SM6S20AHE3/2D: Higher peak pulse current and clamping voltage

In conclusion, the SM5S20AHE3/2D TVS diode offers reliable protection against transient voltage events, making it an essential component in various electronic systems. Its high surge capability, low clamping voltage, and fast response time make it a preferred choice for applications requiring robust transient voltage suppression.

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