Vacuum capacitors have higher withstanding voltage,
smaller volume, lower loss and more reliable performance than capacitors with
other media. The particular performance includes the following:
Rated voltage-Due to the excellent insulation of
vacuum and the dustproof and moisture-proof performance, vacuum capacitors have
high rated voltage when the dimension and the volume are certain. It can
achieve hundreds thousands of voltage.
Small loss and high rated current-As
vacuum capacitors are made with vacuum medium, low loss ceramic shell and
oxygen-free copper plate, it can carry large RF current under general
convection cooling, and even the frequency is very high. The carrying RF
current can achieve thousands of amperes.
Save space-to a certain capacitance and rated
voltage, vacuum capacitors need smallest space.
Wide capacitance range-the ratio of
the biggest capacitance to the smallest achieve 150:1, from several pf to
thousands of pf, it is an ideal component for wide range tuning.
ability for excessive voltage-Vacuum capacitor can withstand instantaneous
excessive voltage, which will permanently damage other sort of
Work in high altitude-vacuum airproof
allows vacuum capacitor to work in high altitude without performance decrease.