2036-20-SM

Series:	Mini-TRIGARD™ 2036-SM
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	200V
Impulse Discharge Current (8/20µs):	10000A (10kA)
Tolerance:	±20%
Number of Poles:	3
Fail Short:	No
Mounting Type:	Surface Mount
Package / Case:	3-SMD Cylinder Square End

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Gas Discharge Tube Arresters (GDT)
Gas Discharge Tube Arresters (GDT), popularly known as surgistor, are protective devices used in lightning protection systems in electrical systems. They are essentially gas filled tubes that protect electrical equipment from voltage spikes due to lightning strikes and line switching. In addition to providing protection from overvoltage, GDT arresters also offer a variety of other protective features such as short-circuit current limitation and protection from low-level voltage environments.GDT arresters are composed of two electrodes that act as contacts, as well as a dielectric material between them. This dielectric material is typically filled with a neutral gas such as nitrogen, argon, or neon. The voltage of the electric field that is created between the two electrodes is higher than the breakdown voltage of the dielectric gas, causing it to ionize and conduct. This current impulse is discharged through an arc, which is able to dissipate the energy that would otherwise damage the protected equipment.One of the key factors in designing a GDT arrester is choosing the right type of dielectric gas. While all of the gases mentioned earlier can be used, neon has become the most widely used due to its ability to hold more current than other gases, yet still provide the necessary level of protection. Additionally, in order to ensure the protection of protected equipment, the arrester also needs to be sized correctly. In order to determine the correct size of arrester, both the magnitude and duration of the expected overvoltage conditions need to be considered. Generally speaking, a gap between the two electrodes should be chosen such that it can handle the expected level of overload current. Furthermore, the gap should also be capable of dissipating the amount of energy that is expected to be discharged over the course of the event. The working principle behind GDT arresters is quite simple. When exposed to an overvoltage, the current impulse between the two electrodes causes the gas inside the dielectric material to ionize, resulting in a voltage trip and initiation of the arrester. This current impulse is then discharged through an arc, dissipating the excessive energy away from the protected equipment.Today, GDT arresters are used in a wide range of applications, including power systems, signal processing systems, communication systems, motor drives, and more. Their ability to provide high levels of protection from both high and low voltage conditions makes them ideal for a multitude of applications. Although GDT arresters are commonly used in protection systems, they do have certain drawbacks that need to be taken into consideration. For instance, they require periodic maintenance, as the condition of the contact points and dielectric gas need to be monitored on an ongoing basis. Additionally, due to their size, GDT arresters are not typically used in applications where a smaller footprint is required. Overall, GDT arresters provide valuable protection for a variety of electrical systems, from high voltage power grids to consumer electronics. Their ability to quickly and efficiently disperse excess voltage makes them a viable option for minimizing the risks of voltage spikes and other overvoltage conditions. As technology continues to advance and more applications become available, GDT arresters will continue to be an indispensable part of electrical systems around the world.

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