SA51-E3/73

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The SA51-E3/73 is a Transient Voltage Suppressor (TVS) diode designed to protect sensitive electrical components from sudden increases in voltage caused by lightning, electrostatic discharges, and electrical surges.

It is a bi-directional three-terminal device that features an efficient protection mechanism. The SA51-E3/73 device offers a small, lightweight solution for surge protection applications. The device is not only designed to provide ESD and EFT protection but also has an internal thermal protection feature to protect against thermal overload.

This device is designed to absorb certain amounts of current, typically measured in Amperes, to shield the components from ESD or current surges. When the voltage across its junction exceeds the TVS diode breakdown voltage, it triggers its conduction mechanism and allows current to flow through the device until the voltage is restored to a normal level. The device features a low clamping voltage, making it suitable for various applications including automotive and consumer electronics as well as other industrial applications.

The working principle of this device is based on the breakdown voltage characteristic of the diode. When voltage is applied to the diode, the device acts as an open circuit until a certain voltage is achieved. Once the voltage reaches this predefined level, known as the breakdown voltage, the diode begins to conduct current, allowing the surge to be absorbed and dissipated rather than damaging the components.

The SA51-E3/73 device can be used to protect electrical circuits from surges in automotive, consumer electronic, industrial, medical, and communication applications. It is suitable for use as an ESD and EFT protection device in mass production applications with automated testing equipment. The device is also suitable for use in high-speed data lines, digital signal processing circuits, and other sensitive and vulnerable systems.

It has low leakage current and provides short circuit current limit protection. It is also available in a variety of packaging options and sizes, so it is easy to find the best solution for any given application. The device is UL Recognized and meets the electrical and mechanical requirements of the International Standard IEC 61000-4-2. In addition, the SA51-E3/73 has been tested and certified to meet the requirements of many automotive specifications.

In conclusion, the SA51-E3/73 Transient Voltage Suppressor (TVS) diode is a three-terminal device designed to absorb certain amounts of current and provide surge protection to sensitive electronics. It features a low clamping voltage and can be used in a variety of electrical applications, including automotive, consumer electronics, and industrial settings. The device works by triggering its conduction mechanism when the voltage across its junction exceeds the TVS diode breakdown voltage, allowing the surge to be absorbed and dissipated rather than damaging the components.

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