SMC3K78CA-M3/9A

Introduction

The SMC3K78CA-M3/9A is a semiconductor product belonging to the category of transient voltage suppressors (TVS). This device is designed to protect sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. The following entry provides an overview of the basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models of the SMC3K78CA-M3/9A.

Basic Information Overview

• Category: Transient Voltage Suppressor (TVS)
• 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: SMC (DO-214AB) package
• Essence: Semiconductor device for voltage transient suppression
• Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

• Part Number: SMC3K78CA-M3/9A
• Peak Pulse Power: 3000W
• Standoff Voltage: 78V
• Breakdown Voltage: 86.7V to 103V
• Operating Temperature Range: -55°C to +175°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SMC3K78CA-M3/9A is a surface-mount device with two terminals for connection. The pin configuration includes the cathode and anode terminals, which are essential for proper installation and functionality.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to safe levels
• Fast Response Time: Rapid reaction to transient events for enhanced protection
• High Surge Capability: Ability to withstand high surge currents without degradation

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time ensures minimal impact on protected circuits
• RoHS compliant, making it environmentally friendly

Disadvantages

• Limited to specific voltage ranges
• Requires proper installation for optimal performance

Working Principles

The SMC3K78CA-M3/9A operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the device rapidly switches into a low impedance state, diverting the excess current away from the protected circuit. This action effectively limits the voltage across the circuit to a safe level, preventing damage to sensitive components.

Detailed Application Field Plans

The SMC3K78CA-M3/9A is widely used in various applications, including: - Telecommunication equipment - Industrial automation systems - Power supply units - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

For users seeking alternative TVS devices, the following models can be considered: - SMCJ78A: Similar characteristics with a different package type - P6SMB78CA: Offers similar protection with a different form factor - 1.5KE78CA: Provides comparable transient voltage suppression capabilities

In conclusion, the SMC3K78CA-M3/9A is a reliable transient voltage suppressor with robust protection capabilities, fast response time, and a wide operating temperature range. Its application spans across various industries, offering effective protection against transient voltage events.

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