SA20CHE3/73

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TVS (Transient Voltage Suppressor) diodes, also known as transil diodes or surge suppressor diodes, are designed to protect sensitive electronic components from voltages above a certain threshold. The SA20CHE3/73 is an example of such a TVS diode. This article will explain the application field and working principle of the SA20CHE3/73.

The SA20CHE3/73 belongs to a family of TVS diodes called UniTran, manufactured by Littelfuse. These diodes are designed for transient voltage protection (TVP) on automotive infotainment systems. This diode is designed to handle up to 20A of peak current, and has an operating voltage of 10V-73V. This makes it suitable for applications such as power supplies, motor control circuits, and automotive in-vehicle networks.

The working principle of the SA20CHE3/73 is based on the avalanche breakdown effect. This effect occurs when the voltage across the junction of the diode exceeds a certain level, causing it to enter an increasingly conductive state. The diode is designed to rapidly absorb this surge of current and voltage, thereby preventing it from damaging the connected electronic components. This diode also has a built-in suppression element, which can absorb even higher voltage surges.

The SA20CHE3/73 can be used in a variety of different applications. For example, it can be used in automotive infotainment systems to protect the system from transient voltage surges. Additionally, it can be used in motor control circuits to protect the connected components from overvoltage conditions. Finally, it can also be used in industrial automation and other in-vehicle networks to provide protection against voltage overloads.

The SA20CHE3/73 is a reliable and cost-effective protection solution for automotive, industrial and in-vehicle networks. With its peak current handling capability of 20A and operating voltage range of 10V-73V, it can be used in a wide range of applications. This diode can also be easily integrated into existing designs, making it an ideal choice for transient voltage protection.

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