Lub siab -voltage ceramic disc capacitor yog ib hom capacitor uas siv cov khoom siv ceramic raws li nws cov dielectric nruab nrab thiab yog tus cwj pwm los ntawm high voltage-muaj peev xwm tiv taus- feem ntau txhais tau tias muaj qhov ntsuas hluav taws xob ntawm 1 kV lossis siab dua. Nws cov qauv muaj xws li ceramic dielectric, sab hauv electrodes, thiab sab nraud electrodes; cov khoom siv hluav taws xob sab hauv feem ntau suav nrog nyiaj, tooj liab, lossis npib tsib xee, thaum cov ntawv ntim khoom feem ntau yog disc-zoo li tus, phaj-zoo li, lossis tubular. Ceramic dielectric feem ntau yog tsim los ntawm capacitor ceramics uas muaj lub siab dielectric tas li -xws li barium titanate lossis titanium dioxide- uas yog extruded los yog tsim rau hauv cov raj, discs, los yog daim hlau.
High-voltage ceramic disc capacitors muaj qhov tshwj xeeb voltage-tsis muaj peev xwm, nrog rau kev khiav hauj lwm voltage feem ntau ncua ntawm 1 kV txog 100 kV. Cov chav kawm ntawm cov capacitors no yog tus cwj pwm los ntawm qhov tsis tshua muaj hluav taws xob poob thiab zoo heev - zaus ua haujlwm, muaj lub zog qis qis thiab qis qis sib npaug series, ua rau lawv zoo tagnrho rau kev siv hauv high - zaus circuits. Nyob rau hauv cov nqe lus ntawm qhov kub thiab txias stability, Class I ceramics (xws li C0G / NP0 cov ntaub ntawv) muaj qhov ruaj khov capacitance qhov tseem ceeb; conversely, Class II ceramics (xws li X7R / Y5V cov ntaub ntawv) qhia tau hais tias capacitance qhov tseem ceeb uas txawv heev nrog rau qhov kub thiab txias hloov, tab sis muaj ib tug siab capacitance - rau - ntim piv. Los ntawm kev ua haujlwm ntau txheej txheej ceramic, siab -voltage ceramic capacitors muaj peev xwm ua tiav qhov muaj peev xwm siab nyob rau hauv ib qho kev cog lus ntawm lub cev. Raws li kev ntsuas hluav taws xob, cov khoom siv hluav taws xob ceramic tuaj yeem faib dav rau hauv siab-voltage, nruab nrab{18}}voltage, thiab qis-voltage hom.
