T049012

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Gas Discharge Tube Arresters (GDT) are protective devices designed to protect electrical systems from potential damage caused by lightning, switching surges, voltage transients, and other over-voltage faults. T049012 is one type of GDT, which is typically used to protect low-voltage data-communications equipment.The T049012 arrester provides over-voltage protection and virtually no intentional conductivity while the system is operating under normal conditions. It is designed to begin functioning at approximately 90V and degrade or “clamp” the overvoltage level to a much lower level. On average, the T049012 offers a very broad range of overvoltage protection up to 300V (about eleven times the normal operating voltage). And its voltage rating is designed to meet the most stringent standards for the protection of data-communications equipment and home entertainment systems.Functionally, the T049012 arrester has two parts, the gas-filled tube and the spark gap. The gas-filled tube normally contains Argon or a mixture of noble gases capable of absorbing electrical energy and this helps reduce the overvoltage condition. The spark gap acts as a ‘trigger’ which is set to the maximum allowable voltage. When a voltage higher than this is encountered by the system, it triggers the spark gap and the gasfilled tube absorbs the excess voltage.In practice, during a lightning surge of over 90V, the spark gap rapidly fires and the resulting spark arc breaks the circuit by allowing all of the energy to enter the gas filled tube and be safely dissipated. This rapid breaking of the circuit before the wave front reaches the electronics eliminates the need for additional protective components. Furthermore, when the surge passes, the spark gap automatically re-opens, allowing the protected circuit to be re-engaged.While the T049012 is designed primarily for protecting data-communications equipment, it is also applicable to other types of systems such as power circuits, hardware buses, control systems, and entertainment systems. These systems are all typically exposed to significant levels of transient surges and the T049012 can provide a highly effective first line of defense.When used in the correct application, the T049012 can provide a superior level of protection. It is a low-cost solution suitable for both industrial and consumer applications and is designed to meet the most stringent standards. By utilizing spark gap technology, the T049012 can offer a very broad range of overvoltage protection at a very competitive price.In conclusion, the T049012 arrester is an ideal solution for protecting low-voltage data-communications equipment from lightning and other transient surges. It functions rapidly and effectively to protect the equipment even in the most severe conditions. The device is very versatile and can be used in a variety of applications with excellent results. With its design and flexibility, the T049012 arrester can provide superior protection in any system.

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