SMCJ20HE3/57T - Product Overview and Analysis

Introduction

The SMCJ20HE3/57T 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 SMCJ20HE3/57T, 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 Basic Information Overview

• Category: Electronic Components
• Use: Voltage Transient Suppression
• Characteristics: High-Efficiency, Fast Response Time, Low Clamping Voltage
• Package: SMC (DO-214AB)
• Essence: Protection of Sensitive Electronic Equipment
• Packaging/Quantity: Tape & Reel, 1800 units per reel

Specifications

• Peak Pulse Power: 1500 W
• Breakdown Voltage Range: 18 V to 22 V
• Operating Temperature Range: -55°C to +150°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SMCJ20HE3/57T TVS diode has a standard SMC package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast Response Time: Provides rapid response to transient voltage events.
• Low Clamping Voltage: Limits the voltage across the protected circuit during transient events.
• High-Efficiency: Effectively suppresses voltage transients to safeguard sensitive electronics.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• RoHS compliant

Disadvantages

• Limited breakdown voltage range
• Requires careful consideration of application voltage levels

Working Principles

The SMCJ20HE3/57T operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit and limiting the voltage across it.

Detailed Application Field Plans

The SMCJ20HE3/57T is widely used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies

Detailed and Complete Alternative Models

For applications requiring different breakdown voltage ranges or power handling capabilities, alternative models to consider include: - SMCJ15HE3/57T (Breakdown Voltage: 13.3 V to 16.7 V, Peak Pulse Power: 1500 W) - SMCJ24HE3/57T (Breakdown Voltage: 21.1 V to 26.9 V, Peak Pulse Power: 1500 W) - SMCJ30HE3/57T (Breakdown Voltage: 27 V to 33 V, Peak Pulse Power: 1500 W)

In conclusion, the SMCJ20HE3/57T TVS diode offers efficient protection against voltage transients and finds extensive use in diverse electronic applications. Its fast response time, low clamping voltage, and RoHS compliance make it a reliable choice for safeguarding sensitive electronic equipment.

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