Specialized Capacitors for High Power Tesla Coils
.02µfd at 10KVAC, 2-3/8" x 7-1/2" Cylindrical
This capacitor is used in our pre-2012 design of the BTC40 tesla coil.
These specialized capacitors are made for Tesla coil applications in a variety of capacitance and AC rms voltage ratings where high frequency and high current operation is required. They are designed to withstand the high reversing currents associated with the high Q primary tank circuits. Available in capacitance values from .001 to .1 µfd at voltages of 7500 to 32000 AC volts rms.
The capacitors are housed in cylindrical high-impact thermoplastic tubing, epoxy sealed with axial end studs for electrical connections. Constructed with a polypropylene dielectric being specially wound to reduce corona and have a high voltage standoff capability. Designed to withstand the multiple discharges of a rotary gap system of up to 600 breaks per minute with a suggested operating frequency of 30 kHz.
(Please note that the "10KV Max" printed on the shell refers to the shell strength: this is the maximum hit the shell can withstand if a high-voltage component were to discharge directly through the shell. But the label on the capacitor shows the maximum operating voltage that the capacitor will safely handle when it is properly connected & voltage discharges through the end terminals as intended.)