9400440000

Series:	--
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Voltage - DC Spark Over (Nom):	470V
Impulse Discharge Current (8/20µs):	20000A (20kA)
Tolerance:	--
Fail Short:	--
Mounting Type:	DIN Rail
Package / Case:	Module

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Gas Discharge Tube (GDT) arresters are a specific type of surge protector that works by releasing electric surges and protecting the electrical components from damage. This type of arrester, also known as a spark gap, can be divided into two main parts: the gas-filled tube and the electrode.The gas-filled tube is filled with a selected gas or combination of gases and is mounted between two metal plates. The gas is chosen based on the type of electrical condition, temperature, and pressure. When connected to an electrical circuit, a direct current (DC) voltage is applied to the opposite metal plates. This electric charge causes the electrode to draw the electric charge and conduct it to the gas container. Once the gas is charged, it will block the electrical surge and protect the circuit.The second part, the electrode, is connected to the gas tube and creates a spark when an electrical surge occurs. This spark will be more intense when more voltage is applied to the electrode, and will create an arcing. This causes a local change in the pressure, temperature, and electrical charge of the gas, allowing it to discharge the electrical current and protect the main electrical circuit.GDT arresters can be divided into three categories: gas-filled tubes, spark gaps, and electrical-discharge-tube (EDT) arresters. A gas-filled tube is the most common and is used when large or powerful electrical surges have to be handled. On the other hand, spark gaps and EDT arresters have lower current ratings and can be used to protect more sensitive electrical components.GDT arresters are critical for protecting electrical systems from damage caused by lightning strikes, surges, and other power anomalies. They are often used for telecommunications, aviation, power grids, military applications, and medical electronics, among others. In addition, these arresters are increasingly being used to mitigate the impacts of electrical disturbances and extend the lifespan of electronic equipment.In summary, GDT arresters are an incredibly effective type of surge protection that can protect electronic components from damage caused by electrical surges. They are often used in a variety of industries, such as telecommunications, aviation, military applications, and medical electronics. These devices work by forming a spark gap between an electrode and a gas-filled tube, allowing the gas to block electric surges and protect the circuit. By understanding how these devices work and where they are used, one can better understand the importance of having a reliable GDT arrester on hand.

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