Compared with other media capacitors, vacuum capacitors is resistance to high pressure, small size, low loss, stable and reliable performance characteristics. Details is in the following aspects:
1) Rated voltage: because the vacuum has the properities of high dielectric strength, dustproof pollution, moisture and others, vacuum capacitors have high rated voltage for a given size and capacity. High up to hundreds of thousands volts.
2) Low loss and high rated cuttent: since the capacitor is using the structure of vacuum medium and low loss ceramic shell and oxygen-free copper electrode. In the case of general convection cooling, even at high frequencies, vacuum capacitor can also go through a large RF currents. If you use a special water cooling structure, the radio frequency can be up to thousands of amperes.
3) Save space: for a given capacitance and rated voltage, vacuum capacitors need smallest space.
4) Wide adjustment range: maximum capacity and minimum capacity ratio is up to 150:1, it is an ideal component of wide tuning range.
5) Overvoltage healing ability: vacuum capacitors can withstand transient overvoltage. But for other capacitor, will cause permanent damage.
6) Ability to work in high altitude: vacuum capacitor with vacuum seal can operate at high altitude without performance decrease.
