GTCA28-351L-P05

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Gas Discharge Tubes Arresters (GDT) are often used in electrical and electronic systems to protect against high-voltage surges. The GTCA28-351L-P05 is an example of a GDT that is used to protect against lightning, over-voltage, and ESD (electrostatic discharge) damage in equipment. This arrester is a high-voltage, three-stage GDT that is designed for wide operating temperature ranges. It features an ultra-low capacitance diode used for maximum protection.

The GTCA28-351L-P05 is mainly used in AC power grids, telecommunications, data networks, lightning protection systems, motor control, and networking equipment. In automotive applications, it is used to protect against high-voltage transients in switchgear and other power distribution systems. Other industries, such as the medical and military sectors, use the arrester to protect their equipment against catastrophic voltage surges.

The GTCA28-351L-P05 is built using an inner core and outer cover that form an air-tight seal. The arrester is designed with three concentric cylinders, the inner one with a silver-plated metal oxide chip and two aluminum-zinc co-doped devices. The silver-plated chip is the active element, and when a surge current flows through the device, the silver is molten and creates a low impedance path to divert the surge current away from sensitive components. The two aluminum-zinc co-doped devices are used to enhance the arrester’s performance and form a network of negative feedback circuit designed to control the voltage. The outer shell is designed with a moisture-resistant coating to protect against external corrosion.

In operation, the GTCA28-351L-P05 operates when a voltage surge hits the device with a magnitude greater than the maximum operating voltage. The arrester rapidly charges up until it reaches its breakdown point, at which point, the silver-plated chip melts and forms the low impedance path. The surge current is then diverted from the circuit to the ground through the arrester. The two aluminum-zinc co-doped devices then act to control the voltage and help reduce the magnitude of the surge. When the voltage falls, the arrester resets itself back to normal operating voltage.

The GTCA28-351L-P05 is a reliable and efficient GDT that offers superior protection against voltage surges. With its wide operating temperature range, low capacitance, and efficient surge-control circuit, the arrester is an ideal solution for industries requiring superior protection against lightning, over-voltage, and ESD damage.

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