Gulu la Surface Mount Capacitors

Surface mount capacitor apanga mitundu yambiri ndi mndandanda, wosankhidwa ndi mawonekedwe, kapangidwe kake ndi kagwiritsidwe ntchito, komwe kumatha kufika mazana amitundu.Amatchedwanso chip capacitors, chip capacitors, ndi C ngati chizindikiro choyimira dera.Mu SMT SMD ntchito zothandiza, pafupifupi 80% ali a multilayer chip ceramic capacitors, kutsatiridwa ndi chip electrolytic capacitors ndi chip tantalum capacitors, chip organic film capacitors ndi mica capacitors ndizochepa.

1. Chip ceramic capacitors

Chip ceramic capacitors, omwe amadziwikanso kuti chip ceramic capacitors, palibe kusiyana kwa polarity, mawonekedwe a mawonekedwe omwewo ndi zopinga za chip.Thupi lalikulu nthawi zambiri limakhala gawo la imvi-chikasu kapena imvi-bulauni, ndipo kuchuluka kwa magawo a electrode amkati kumatsimikiziridwa ndi kuchuluka kwa capacitance, nthawi zambiri pali magawo opitilira khumi.

Kukula kwa chip capacitor ndikofanana ndi chip resistor, pali 0603, 0805, 1210, 1206 ndi zina zotero.Nthawi zambiri, palibe chizindikiro pamtunda, kotero mphamvu ndi kupirira mtengo wamagetsi sizingasiyanitsidwe ndi capacitor yokha, ndipo ziyenera kudziwika kuchokera pa phukusi.

2. SMD tantalum capacitors

SMD tantalum capacitor amatchedwa tantalum electrolytic capacitor, yomwenso ndi mtundu umodzi wa electrolytic capacitor, koma imagwiritsa ntchito chitsulo cha tantalum ngati sing'anga m'malo mwa electrolyte.Ma capacitor ambiri okhala ndi kuchuluka kwakukulu pa voliyumu iliyonse, mphamvu yopitilira 0.33F ndi tantalum electrolytic capacitors.Ili ndi kusiyanitsa kwabwino ndi koyipa, ndipo mlongoti wake woyipa nthawi zambiri umakhala ndi chizindikiro pathupi.Ma capacitor a Tantalum ali ndi mphamvu zambiri, kutaya pang'ono, kutayikira pang'ono, moyo wautali, kukana kutentha kwambiri, kulondola kwambiri, komanso kusefa kwapamwamba kwambiri.

SMD tantalum capacitor wamba ndi yellow tantalum ndi black tantalum, kutsogolo ndi kumbuyo kwa SMD yellow tantalum capacitor, ndi black tantalum capacitor.Mapeto odziwika pa thupi lalikulu (mapeto apamwamba pachithunzichi) ndi mlongoti wawo wolakwika, ndipo manambala atatu omwe amalembedwa pa thupi lalikulu ndi mtengo wa capacitance womwe umasonyezedwa ndi njira yamagulu atatu, unit ndi PF mwachisawawa, ndipo mtengo wa voteji umayimira kukula kwa mphamvu yamagetsi.

3. Chip electrolytic capacitors

Chip electrolytic capacitors amagwiritsidwa ntchito kwambiri pazinthu zosiyanasiyana zamagetsi zamagetsi, ndipo ndizotsika mtengo.Atha kugawidwa mu rectangular electrolytic capacitors (resin encapsulated) ndi cylindrical electrolytic capacitors (chitsulo encapsulated) malinga ndi akalumikidzidwa zosiyanasiyana ndi ma CD zipangizo.Chip electrolytic capacitors nthawi zambiri amakhala ndi mphamvu zazikulu ndipo amagwiritsa ntchito electrolyte ngati dielectric, kusiyana pakati pa polarity zabwino ndi zoipa ndi chimodzimodzi ndi tantalum capacitors, koma capacitance mtengo kukula zambiri chizindikiro pa thupi lake lalikulu ndi njira yowongoka chizindikiro, ndi unit. ndi μF mwachisawawa.cylindrical chip electrolytic capacitors.