SL1021A400R Circuit Protection

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Gas Discharge Tube Arresters (GDT) are a type of electrical protection device used to protect electrical components from overvoltage or lightning. The SL1021A400R is a particular type of GDT that has the capacity to absorb large surges and dissipate the energy quickly.

SL1021A400R application fields are mainly in communication, cable TV and power system, especially for high-speed communication systems. In addition to providing overvoltage protection, it has the capacity to operate in high speed/fast response protection mode. It can also be used in AC power systems as an EMC filter by dissipating high-frequency interference.

The working principle of SL1021A400R is that it works by suppressing high electric currents or high-frequency noise. When an over-voltage event occurs, a small breakdown occurs in the gas-filled tube, causing the voltage across this tube to discharge to a safe level. In the process, some of the energy from the high-voltage event is dissipated. These devices have high-speed response, and can protect against surges in the range of 0.1 to 30 kV. This allows them to protect connected equipment that would otherwise be damaged.

SL1021A400R are low power GDTs, meaning that they require very little energy to activate and provide a high level of protection. They are designed to have a long life and can handle multiple over-voltage surges without failure. In addition, they are temperature independent, so they can be used in a wide range of temperatures and don’t require cooling.

SL1021A400Rs are designed to prevent arcing or short-circuiting in high-voltage applications. They come in two basic types: single-hole and double-hole. A single-hole GDT can be used to protect against small, single-pulse over-voltages, while a double-hole GDT provides more protection against larger, multiple-pulse over-voltages. SL1021A400Rs provide excellent protection against surges, and are a cost-effective way to protect sensitive electronic circuits.

In conclusion, SL1021A400R is a widely used Gas Discharge Tube Arrester that is suitable for a range of applications. It is designed to provide high-speed protection from over-voltage events by dissipating the energy quickly. The device is temperature independent and has a long life, and is an excellent cost-effective way of protecting electrical components from over-voltage events.

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