CG75

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Gas Discharge Tube Arresters (GDT) are widely used in the power supply, electrical and communication devices. They are also known as transient voltage suppressors (TVS), which are used to protect circuits from voltage spikes or electrical surges. These devices are capable of dissipating large amounts of energy over a very short period of time.

The CG75 application field and working principle is similar to other GDTs. It is primarily designed for overvoltage and surge protection in power distribution systems and automotive electronic applications. CG75 features a copper hood, stainless steel housing, and gold plated electrodes. The CG75 is available in a range of sizes and voltage ratings, from 1,100 to 68,000 volts. This GDT employs a two-part construction, consisting of a spark gap formed by two electrodes, and an outer tube filled with dielectric gas. The device is intended to provide overcurrent protection for equipment in the event of an electrical surge.

The CG75 working principle is based on the fact that when an overvoltage is applied to the device, the voltage difference between the two electrodes will create an ionization cascade in the gas medium. This will create a current path, allowing the current to be conducted away from the protected circuit, thus protecting it from the overvoltage. The CG75 GDT can be triggered either by a sustained overvoltage, or by a high energy waveform. The device is triggered instantaneously, and the current is conducted away from the protected circuit, limiting the overall damage.

The advantages of using the CG75 GDT in power supply, electrical and communication devices include its high surge current capability, wide range of operating voltages, fast response time, and low voltage ratings. It is also able to provide overload protection in a wide range of applications. Additionally, the GDT does not require any maintenance or connection of external components, making it a simple and cost-effective solution for surge protection.

In summary, the CG75 GDT is a reliable and cost-effective solution for protection against overvoltages and electrical surges in power supply, electrical and communication devices. It has a high surge current capability, wide range of operating voltages, fast response time, and low voltage ratings. Additionally, it does not require any maintenance or connection of external components. This makes it an ideal choice for protection in a variety of applications.

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