Many of our customers are always asking what Teflon capacitor and how it is made. For a visual example, we was sacrificed new capacitor FT-3 0.22uf 600V. Capacitors with other capacitances and voltage have a similar structure.
We have made two cuts in both ends of the capacitor. This gave easy access to content.
Both covers have teflon rings are mounted on the body of the capacitor with eyelets. In the center of the teflon ring pressed external pins.
Fixing to the body of the Teflon ring and internal part enclosed capacitor additional protective Teflon film.
This inner part of the caps FT-3 in the assembled condition (dielectric and conductor).
Insulator and conductor are protected from contact with the body additional teflon film.
Length of the protective Teflon film leaves 30-40 centimeters.
Begin unwound insulator and conductor.
Winding has a double layer of dielectric and conductor. The conductor is made of aluminum foil, a dielectric of Teflon tape.
Conclusions conductor look like.
In the heart of the capacitor FT-3 has two pins, they help make the winding layers in the factory.
We are glad to help and decided if some of your questions.
You can buy this caps here.