Ama-dielectric efilimu yepulasitiki avame ukusetshenziswa ekwakhiweni kwama-capacitor efilimu ensimbi afaka phakathi i-polypropylene (PP), i-polyphenylene sulfide (PPS), i-polyester, kanye nephepha lensimbi (MP). Lezi zinto ze-dielectric zinezindlela ezahlukene zokuziphilisa.

Uma kwenzeka ukuphuka kwe-capacitor yefilimu enensimbi, ukugoba kubangela ukuthi ungqimba lwensimbi oluncane oluzungeze indawo yephutha luphele. Le nqubo yokuhwamuka isusa ungqimba lwensimbi oluqhubayo endaweni ezungeze iphutha. Njengoba izinto eziqhubayo zisusiwe, i-short circuit ayikwazi ukwenzeka phakathi kwamapuleti. Lokhu kuvimbela ukwehluleka kwengxenye.

Amandla okuziphilisa e-capacitor yefilimu enensimbi ancike ezintweni eziningi ezifaka phakathi izakhiwo zezinto ze-dielectric kanye nobukhulu bengqimba yensimbi. Inqubo yokuhwamuka idinga ukuhlinzekwa okwanele kwe-oxygen kanye nezinto ze-dielectric ezine-oxygen ephezulu enokuqukethwe okuphezulu komoya-mpilo zinezakhiwo ezinhle zokuziphilisa. Ezinye ze-dielectric zefilimu yepulasitiki ezinezimpawu ezinhle zokuziphilisa zifaka phakathi i-polypropylene, i-polyester kanye ne-polycarbonate. Ngakolunye uhlangothi, i-dielectric zefilimu yepulasitiki ezinokuqukethwe komoya-mpilo okuphansi kunokubukeka okubi kokuziphilisa. I-Polyphenylene sulfide (PPS) ingenye yezinto ezinjalo ze-dielectric.

Ngaphandle kokuthuthukisa ukuthembeka, ikhono lokuziphilisa lama-capacitor efilimu anensimbi liyasiza ekuthuthukiseni impilo yawo yokusebenza. Kodwa-ke, ukuziphilisa kubangela ukwehla kwendawo ye-electrode enensimbi ngokuhamba kwesikhathi.

Ezinhlelweni zokusebenza, ezinye zezimo ezingasheshisa ukwehluleka kwengxenye zifaka amazinga okushisa aphezulu, ama-voltage aphezulu, umbani, umswakama ophezulu, kanye nokuphazamiseka kwe-electromagnetic (EMI).

Ngaphandle kwezakhiwo ezinhle zokuziphilisa, ama-capacitor efilimu ye-polyester ensimbi nawo anokuqina okuphezulu kwe-dielectric, ukuqina okuhle kokushisa, amandla aphezulu e-dielectric, kanye nokusebenza kahle kwe-volumetric okuhle kakhulu. Lezi zici zenza la ma-capacitor afaneleke kakhulu ekusetshenzisweni okujwayelekile. Ama-capacitor e-polyester ensimbi asetshenziswa kabanzi ezinhlelweni ze-DC ezifana nokuvimba, ukudlula, ukuhlukanisa, kanye nokunciphisa umsindo.

Ama-capacitor e-polypropylene anensimbi anikeza ukumelana okuphezulu kokushisa, ukumuncwa kwe-dielectric okuphansi, ukulahlekelwa kwe-dielectric okuphansi, amandla aphezulu e-dielectric, kanye nokuqina kwesikhathi eside. Lezi zingxenye ezisebenzisa kahle isikhala zisetshenziswa kabanzi ezinhlelweni ezinamathiselwe kuma-mains njengezifunda zokuhlunga, ama-ballast okukhanyisa, kanye nezifunda ze-snubber. Ama-capacitor e-polypropylene anensimbi ephindwe kabili angamelana nemithwalo ephezulu ye-voltage kanye ne-high-pulse, futhi afaneleka ezinhlelweni ezinamathuba aphezulu e-pulse ejulile. Lawa ma-capacitor avame ukusetshenziswa kubalawuli bezimoto, ama-snubbers, izinsiza zamandla zemodi yokushintsha, kanye nama-monitor.