SMCG8.0CA-M3/9AT

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TVS - Diodes are widely used for protection of electrical and electronic equipment against over voltage transients that can occur in a variety of industrial, commercial, and automotive applications. The SMCG8.0CA-M3/9AT is a TVS diode specifically designed for Surge Protection. It features high reliability, low EMI, and low leakage current.

Overview

The SMCG8.0CA-M3/9AT is a premium transient voltage suppressor designed to protect a variety of electrical and electronic equipment from over voltage transients generated by lightning, electrostatic discharge, inductive switching, etc. The device features a low clamping force and fast response time, allowing it to absorb large surge voltages with minimal additional voltage drop, while simultaneously reducing electromagnetic interference.

Key Features

The SMCG8.0CA-M3/9AT has several key features that make it an ideal choice for applications requiring fast response time and low parasitic capacitance. These include:

• High peak pulse current rating up to 51.2A
• Low clamping voltage
• Ultra-low capacitance (< 0.17 pF)
• Maximum Leakage Current of 0.75 μA
• Soft recovery time
• Low EMI
• Wide temperature range

Applications

The SMCG8.0CA-M3/9AT is suitable for a variety of applications where protection from high voltage transients is required. These include:

• Industrial equipment
• Communication systems
• Automotive power systems
• Lighting systems
• Portable and consumer equipment

Working Principle

The SMCG8.0CA-M3/9AT works on the principle of avalanche breakdown. Avalanche breakdown is a type of electrical breakdown which occurs when a current passes through a diode and increases rapidly due to the increased electric field strength across the junction. This increase in electric field strength causes electrons to become accelerated to the point that they break through the energy barrier, triggering a cascade of additional electrons also breaking through and leading to increased current. This rapid increase in current causes the voltage to drop, suppressing the transient voltage spike and protecting the device from damage.

The SMCG8.0CA-M3/9AT is designed with a low breakdown voltage, allowing it to clamp very quickly and absorb large surge voltages before they reach the protected components. This fast response time and low parasitic capacitance make the device ideal for applications that require fast response time and low EMI.

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