8D017J08BA

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8D017J08BA is a high temperature hydrogen coated vacuum ceramic semiconductor rectifying device. It has wide applicability and is mainly used in the control and protection of industrial high-power equipment in critical working conditions.

The semiconductor 8D017J08BA is a kind of ceramic vacuum rectifier, it has remarkable advantages such as small size, light weight, high voltage, high reliability, high insulation, long life and so on.

The 8D017J08BA uses the principle of thermionic emission to realize the rectifying effect. It belongs to the zero-bias type. Its anode is made of refractory metal and the oxide outside of the anode is insulated. When the circuit is initially energized, the oxide layer is thick and the anode is negatively charged. The oxide layer is thin and the anode is positively charged.

At normal operating temperatures, the electrons emitted from the anode are accelerated to the cathode by the potential difference between the two poles. The electrons at the cathode cause a surface layer of electrons, that is, the "trapped charge" layer, so the electrons can only flow from the anode to the cathode. At the same time, the trapped electron layer on the anode surface also has a repulsive force in the form of an electric field. This layer also traps the electrons coming from the anode and prevents them from returning to the anode.

Therefore, when the circuit is operating normally, 8D017J08BA can realize a stable rectifying effect. However, when the thermionic field between the two poles exceeds a certain value, due to thermionic phenomena, electrons can still penetrate the electron layer on the anode surface and return to the anode. This will cause electron saturation and reverse current in the 8D017J08BA, which can easily cause failure of the circuit or equipment.

8D017J08BA has been widely used in the power control circuit, rectifier field and the current damage protection system of industrial and mining. It has been utilized to control the on and off action of high-power electrical process, like the electromagnetic relay and silicon module, in metallurgy, electric power, chemical and other fields.

Nowadays, 8D017J08BA is used more and more in many industrial fields to control and protect essential circuits for high power equipment in various critical working conditions. It is an important application for the protection and control of various circuits.

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