CR2703AC

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Transient Voltage Suppressors (TVS) diodes are protective devices used to defend electronic circuits from transient voltage spikes or ESD (Electrostatic Discharge) events. The CR2703AC is one of the most popular TVS diodes on the market today. In this article, we will discuss the CR2703AC’s application field and working principle.

Application Field

The CR2703AC is designed for use in medium-voltage high-power automotive applications. It is able to protect in pulsed load conditions up to +/- 18V and is suitable for standard automotive 12V systems. Due to its low capacitance and low leakage current, it is also well-suited for use in high-performance vehicle applications such as engine control units. This device is able to effectively protect against ESD events from up to 25 kilovolts, making it essential in any electronic application that needs reliable protection from voltage spikes and ESD.

Working Principle

The CR2703AC operates based on a voltage-dependent current avalanche, or “zener” breakdown. This occurs when the voltage across the anode-to-cathode junction of the diode reaches a certain level, triggering an avalanche effect. This effect causes the current to increase rapidly, to the point where the diode becomes conductive and is able to withstand the voltage spike or ESD event without damage. The avalanche current is determined by three factors: the breakdown voltage, the junction field magnitude, and the junction area. When the voltage or ESD event is greater than the breakdown voltage, the diode is capable of withstanding and dispersing the unwanted energy.

The CR2703AC also features a high breakdown voltage of up to 1200 volts, making it suitable for even more demanding applications. Additionally, the diode is capable of dissipating up to 30 watts of power, meaning it can handle higher current surges without damage. This device also features an extremely low capacitance of only 4 picofarads, making it well-suited for high-frequency operations as well.

Overall, the CR2703AC is an excellent choice for any automotive application looking for reliable voltage protection. With its high breakdown voltage, low capacitance, and low leakage current, it is well-suited for high-performance car sensors, controllers, and other sensitive electronic components. Its wide application range, combined with its effectiveness in protecting against voltage spikes and ESD makes the CR2703AC an invaluable protective device in any automotive system.

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