SMC3K40CA-M3/9A

Introduction

The SMC3K40CA-M3/9A is a high-performance TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides an overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: TVS Diode
• Use: Protection against voltage transients
• Characteristics: High surge capability, low clamping voltage
• Package: DO-214AB (SMC), Tape & Reel
• Essence: Transient voltage protection for electronic circuits
• Packaging/Quantity: 5000 units per reel

Specifications

• Peak Power Dissipation: 3000W
• Breakdown Voltage: 40V
• Clamping Voltage: 64.5V at 77.4A
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMC3K40CA-M3/9A follows the standard DO-214AB (SMC) package configuration with two leads.

Functional Features

• Fast response time
• Low incremental surge resistance
• High temperature stability
• RoHS compliant

Advantages and Disadvantages

Advantages

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

Disadvantages

• Relatively higher cost compared to standard diodes
• Requires careful handling during installation

Working Principles

The SMC3K40CA-M3/9A operates based on the principle of avalanche breakdown, where it rapidly diverts excessive current away from sensitive components when a transient voltage event occurs. This helps in limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMC3K40CA-M3/9A is widely used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

• SMCJ40A: Similar TVS diode with a different package (DO-214AB)
• P6SMB40CA: TVS diode with similar characteristics but in a different package (DO-214AA)

In conclusion, the SMC3K40CA-M3/9A offers robust transient voltage protection for a wide range of electronic applications, making it an essential component in safeguarding sensitive circuits from damaging voltage surges.

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