Capacitor, Cornell-Dubilier 940C20P15K-F 0.15uF, 2000V
IMPORTANT NOTE 2021:
Note, there is a shortage of 942C 0.15uF, 2kV capacitors and the manufacturer is not expected to have new stock until 2022. We have full stock on these 940C which are better than the 942C in our opinion - we use them for our largest DRSSTC Tesla coil systems.
These poly capacitors are the best you can use for Tesla coils period! They can be used for both solid state (DRSSTC) and spark gap Tesla coils. These capacitors can take an enormous beating and keep coming back for more!
Click here for the datasheet (PDF)
Note: The photo above is a generic photo for this capacitor product line.