Muaj ntau yam kev cai rau cov capacitors hauv cov khoom siv hluav taws xob siab, vim tias txhua qhov xwm txheej ntawm daim ntawv thov xav tau cov khoom siv hluav taws xob tshwj xeeb thiab kev ntseeg tau. Capacitors, ua cov khoom tseem ceeb passive, ua lub luag haujlwm tseem ceeb hauv kev khaws cia lub zog, kev lim cov teeb liab, kev ruaj khov voltage, thiab kev tswj lub sijhawm. Txhawm rau kom ntseeg tau tias muaj kev ua tau zoo tshaj plaws thiab lub neej ntev ntawm cov kab ke hluav taws xob, nws yog ib qho tseem ceeb uas yuav tsum xaiv cov capacitors raws li kev sib phim cov ntsiab lus ntxaws thiab kev tshuaj xyuas cov xwm txheej ntawm daim ntawv thov.
Hauv cov khoom siv hluav taws xob uas muaj zog thiab ceev ceev niaj hnub no, cov khoom siv surface-mount (SMDs) tau dhau los ua lub hauv paus ntawm kev tsim hluav taws xob niaj hnub no. Tshaj li cov capacitors, resistors, inductors, EMI lim dej, thiab thermistors tsim cov khoom siv passive component tseem ceeb uas ua kom muaj kev ruaj khov, kev ua haujlwm tiv thaiv kev cuam tshuam, thiab kev ua haujlwm ntev hauv kev lag luam, tsheb, thiab semiconductor daim ntawv thov.
Cov resistors nti yog cov khoom siv dav tshaj plaws, muab kev txwv tam sim no, kev faib hluav taws xob, thiab kev txo qis ntawm lub teeb liab. Cov resistors nyias nyias uas muaj qhov tseeb siab muab kev kam rau siab qis (qis li ± 0.1%), cov coefficient kub qis (TCR), thiab kev ruaj khov zoo heev, ua rau lawv zoo tagnrho rau kev ntsuas, kev ntsuas, thiab kev sib txuas lus. Cov resistors fais fab, los ntawm qhov sib piv, txhawb kev tshem tawm lub zog siab thiab feem ntau siv rau hauv kev tswj hwm hluav taws xob, kev tswj hwm lub cev muaj zog, thiab cov tshuab tsav tsheb hauv kev lag luam.
Cov inductors nti thiab cov inductors fais fab ua lub luag haujlwm tseem ceeb hauv kev khaws cia lub zog, kev lim dej, thiab kev hloov pauv DC-DC. Nrog rau qhov tsis kam DC qis (DCR) thiab cov hluav taws xob siab, lawv txo qhov poob hluav taws xob thiab txhim kho kev hloov pauv zoo. Cov inductors zaus siab txhawb nqa xov tooj cua zaus (RF) thiab cov voj voog teeb liab ceev ceev, tswj kev ncaj ncees ntawm cov teeb liab thaum txo qis kev cuam tshuam electromagnetic.
Cov khoom siv tiv thaiv EMI, suav nrog cov hlaws dai chip, cov chokes hom sib xws, thiab cov lim dej qis-pass, tiv thaiv cov circuits rhiab heev los ntawm suab nrov sab nraud thiab kev cuam tshuam sab hauv. Cov khoom no yog qhov tseem ceeb tshwj xeeb hauv kev ntim khoom semiconductor, cov khoom siv hluav taws xob hauv tsheb, thiab cov khoom siv ntse, qhov twg kev xa cov teeb liab ruaj khov cuam tshuam ncaj qha rau kev ua haujlwm ntawm cov khoom thiab kev nyab xeeb.
Cov thermistors thiab varistors muab kev tiv thaiv tseem ceeb thaum kub dhau thiab dhau voltage. Cov thermistors thermistors uas ntsuas qhov kub thiab txias tsis zoo (NTC) saib xyuas qhov kub thiab txias hloov pauv tiag tiag, tiv thaiv kev kub dhau hauv cov modules muaj zog heev. Cov varistors sai sai nqus cov hluav taws xob nce siab, tiv thaiv cov chips thiab circuit boards ntawm voltage spikes thiab electrostatic puas tsuaj.
Kev xaiv cov khoom yuav tsum xav txog qhov loj ntawm pob khoom, kev ua haujlwm hluav taws xob, kev kam rau ib puag ncig, thiab cov qauv kev ntseeg siab xws li AEC-Q200 rau kev siv tsheb. Cov pob khoom me me (0402, 0201, 01005) ua rau muaj PCB ntau dua, thaum cov khoom ruaj khov tswj tau qhov ruaj khov hauv qab qhov kub thiab txias, av noo, thiab kev co.
Raws li cov khoom siv hluav taws xob txuas ntxiv mus rau qhov me me, zaus siab, thiab kev txawj ntse, kev ua tau zoo ntawm cov chip resistors, inductors, lim dej, thiab cov khoom tiv thaiv yuav tseem yog qhov tseem ceeb hauv kev tsim qauv. Kev xaiv cov khoom SMT zoo, sib xws yog qhov tseem ceeb rau kev txhim kho kev ntseeg siab ntawm cov khoom, txo cov nqi ua tsis tiav, thiab txhim kho kev sib tw tag nrho.
Lub sijhawm tshaj tawm: Plaub Hlis-27-2026