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Meidensha Meiden vacuum capacitors

Meidensha Meiden Vacuum Capacitors

Omnicor >>

Description

 

 A vacuum variable capacitor uses a high vacuum as the dielectric instead of air or other insulating material. This allows for a higher voltage rating and/or capacitance value using a smaller total volume. In addition to the higher voltage rating a vacuum dielectric greatly reduces the chance of arcing between the plates. There are several different designs in vacuum variables, the most common geometry of the capacitor plates is usually inter-meshed concentric cylinders. The meshed cylinders are contained within a ceramic vacuum envelope, similar to an electron tube. Metal bellows are used to maintain vacuum seal while allowing positional control for the moving parts of the capacitor.

Meidensha Meiden vacuum capacitors are used in RF matching networks in plasma, LCD, solar and medical applications.

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