I-Polyester film capacitor iphepha elithambileyo eliyi-composite foil yimveliso ye-insulating eyenziwe ngumaleko ongentla wephepha le-capacitor eliqatywe nge-polyester film encamathelayo yokuncamathelisa, ekubhekiselwa kuyo njenge-PMP.I-polyester film capacitor iphepha elithambileyo le-composite foil ineempawu ezilungileyo ze-dielectric kunye namandla aphezulu omatshini, kwaye ifanelekile ukugqunywa kwe-gasket yeenguqu ezahlukeneyo zamandla ombane aphezulu.