Below 400pF
Vacuum variable capacitor is a capacitor with vacuum as medium. The electrode bank of the capacitor is a set of concentric cylindrical electrodes formed by drawing a series of high-conductivity oxygen-free copper strips through a set of high-precision molds and sealed in a vacuum container. Due to the adjustable capacitance value, it has the characteristics of high voltage resistance, small volume, low loss, stable and reliable performance. Widely used in broadcasting communication equipment, semiconductor manufacturing equipment, high frequency industrial equipment, medical instruments, high energy physics, power equipment.