2036-35-SMLF

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Gas discharge tube arresters (GDT) have recently gained increasing attention due to their unique ability to safely conduct electrical current, while protecting equipment and people from dangerous electrical surges. The GDT also known as an Sudden Momentary Leakage Fuse (SMLF) is a component used to protect electronic equipment from voltage spikes. It provides a reliable, low-cost solution to protect sensitive devices from power surges.

GDT\'s are similar to a metal-oxide varistor (MOV), except that instead of a metal-oxide material, they use a gas-filled tube. The main components of a GDT include a conductive column of gas inside a sealed, evacuated tube with two metal electrodes on each end. The sealed gas-filled tube is filled with non-conductive gas, which, when a high-voltage surge or transient occurs, quickly ionizes into a plasma that can conduct current and dissipate the surge.

When the voltage reaches a certain level, GDTs will become "active" and perform its function of limiting and protecting against over-voltage. At this time the tube produces a voltage surge which is dissipated across its electrodes as heat. As the GDT reaches its specified "cutoff voltage level" it will no longer allow current to flow, thus preventing any further voltage increase and further damage to the device. The GDT is then reset to its original state, for the next time a surge occurs.

GDT\'s are most commonly used in telecommunications applications, such as telephone lines, modems, and similar equipment. They are also used in AC power systems, and on automotive and aircraft electrical systems. In recent years, the use of GDT\'s has been seen in home automation systems and high-end home electrical appliances.

An SMLF application field is the use of GDT in a transformer substation to protect equipment in the network from lightning strikes. By connecting a GDT to a surge arrester, incoming lightning strikes can be directed to ground and dissipated, rather than traveling up the transmission lines and damaging other equipment. This works by using the surge arrester to divert the excessive voltage into a GDT, which then dissipates the current as heat and prevents any further damage.

GDT\'s have been used in industrial systems such as power plants, microwave transceivers, and medical devices for a number of years. They have proven to be an effective and reliable protection solution. However, the cost of these components may make them prohibitively expensive for most applications. As the technology improves, the price should go down.

GDT\'s are a great way to protect electrical equipment from damaging power surges and lightning strikes. They provide reliable protection while being inexpensive to install. GDT\'s can be used in a wide variety of applications, from telecommunications to industrial power plants.

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