SMAJ150-E3/5A

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TVS - Diodes

The SMAJ150-E3/5A is a great example of a TVS diode, or Transient Voltage Suppressor diode, which are a type of semiconductor component used to protect against electrical overstress. By clamping the voltage and limiting the current, they are used to protect sensitive electronics from high voltage, as well as to protect against potentially harmful electrical surges. This type of diode has an incredibly wide range of uses, from protecting medical equipment to automotive applications, and the SMAJ150-E3/5A is no exception.

The SMAJ150-E3/5A has an amazing rating of 150V@8A, which makes it perfect for automotive and industrial applications. It is also able to suppress ESD, or electrostatic discharge, as well as Lightning Surge and Transient Voltage Spikes. It is also a good choice for grounding architectures, and can be connected directly to the common ground of any system. This makes it an ideal choice for equipment in hazardous and wet locations, as it would quite literally be able to save lives.

The working principle of the SMAJ150-E3/5A is simple, and is based on the Avalanche breakdown theory. When a reverse voltage is applied to the diode, the p-n junction of the diode conducts a current and the diode gets hot. Once a certain reverse voltage threshold is reached, the p-n junction conducts in a manner known as Avalanche Breakdown, and the heat generated from the breakdown quickly flows away in the form of a current surge or clamping. This process of Avalanche breakdown takes a few nanoseconds, and will cause the voltage to clamp quickly to a safe level.

Overall, the SMAJ150-E3/5A is an incredibly useful tool for protecting sensitive electronics from electrical overstress. It is able to clamp voltages quickly and efficiently, even in the face of sudden and extreme voltage fluctuations - such as those caused by lightning or electrostatic discharge. With its wide range of uses from medical equipment to automotive applications, it is sure to be a great addition to any system.

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