Yawanci ta amfani da yumbu na kayan insulator na yumbu dicempe capacitors, kuma tsarinta na asali shine juzu'in yumbu da giciye na lantarki na ciki. Yumbu kayan nau'ikan da yawa. Tunda marasa lahani sunyi la'akari da samfuran lantarki ba su da jagora, haɓakar haɓakar wutar lantarki ta PB (gubar) don fita daga fagen masu haɓaka yumbu, yanzu ana amfani da TiO2 (titanium dioxide), BaTiO3, CaZrO3, (calcium zirconate). Sizearami kaɗan, babban ƙarfi, juriya mai kyau mai kyau, mai dacewa don samar da taro da ƙarancin farashi idan aka kwatanta da sauran ƙarfin.

hv capacitor