2018-35-SMH-RPLF

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Gas Discharge Tube Arresters (GDT) are a common form of electrical surge protection, used to protect important electronic equipment (such as a computer) from voltage and current surges caused by lightning strikes. GDTs are made up of a gas-filled tube, a spark gap, and two electrodes.

The spark gap is a gap between two electrodes that, when energized, forms a high resistance path to the rest of the system. This allows the voltage across the gap to build up until it reaches a certain threshold, at which point the gap breaks down and allows the current to flow. The spark gap is designed to break down when the voltage reaches a certain level, which is usually higher than the desired voltage of the system it is protecting. This high-voltage threshold helps protect the system from overvoltage damage, such as electrical arcing or short-circuiting.

The gas-filled tube is a special type of ceramic, typically filled with a noble gas such as neon. The gas-filled tube works by breaking down when a voltage surge occurs, allowing the current to flow through the tube instead of through the system being protected. The gas molecules ionize and form a plasma, which is much less resistant than the original gas. This allows the current to flow through the tube and be dissipated harmlessly, preventing it from entering the system.

The two electrodes are connected to the spark gap and the gas-filled tube, and serve to direct the current through the tube when the spark gap breaks down. The electrodes are also usually surrounded by a dielectric material to provide further protection from arcing and short-circuiting. The electrodes are also designed to limit the amount of current that can pass through the tube, protecting the system from over-current damage.

GDT Arresters can be found in a wide variety of applications, from residential surge suppression to industrial power supplies. They can also be used in many types of electronic equipment, from computers to wireless networking devices. GDT Arresters are an important component of any surge protection system, and are an essential tool in protecting valuable equipment and systems from electrical surges caused by lightning strikes.

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