Yuav Ua Li Cas Rau Kev Tshawb Fawb Txog CL21 Capacitors: Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb thiab Kev Xaiv Cov Lus Qhia
Sep 19, 2025| I. Kev soj ntsuam ntawm Cov Txheej Txheem Txheej Txheem rau CL21 Capacitor
CL21 capacitors siv metallized polyester zaj duab xis dielectric thiab epoxy resin encapsulation qauv. Lawv cov kev ua haujlwm tsis zoo yuav tsum ua raws li cov qauv thoob ntiaj teb thiab hauv tebchaws xws li IEC 60384-2 thiab GB / T 7332. Cov hauv qab no qhia txog qhov tseem ceeb ntawm qhov ntsuas thiab lawv qhov tseem ceeb rau kev xaiv:
1.1 Basic Electrical Performance Parameters
| Tsis muaj | Yam ntau yam | Kev xaiv qhov tseem ceeb |
| Rated Voltage | 100V ~ 630VDC | 250V / 400V yog tus qauv specification, thaum 630V yog haum rau siab -voltage applications. |
| Nominal Peev Xwm | 0.0047μF~10μF | 0.01μF txog 6.8μF npog cov ntawv thov ntau yam. |
| Capacity Deviation | J(±5%),K(±10%),M(±20%) | J-chav kawm capacitor yog qhov nyiam rau cov khoom siv hluav taws xob, thaum K-chav kawm yog xaiv tau rau kev lim fais fab. |
| Loss Tangent (tanδ) | Tsawg dua lossis sib npaug li 0.001 ~ 0.01 (1kHz / 10kHz) | High- zaus circuits yuav tsum tsawg dua los yog sib npaug rau 0.006 (xws li, lub zog-txuag teeb rectifiers). |
| Rwb thaiv tsev Resistance | Ntau dua lossis sib npaug rau 7500MΩ (muaj peev xwm me) / Ntau dua lossis sib npaug rau 2500S (High peev xwm) | Xyuas kom muaj kev tswj xyuas tam sim no hauv DC circuits. |
| Nrog Voltage | 1.4 ~ 1.6 lub sij hawm ntsuas voltage (5s) | Yuav tsum ua tau raws li qhov yuav tsum tau ua hauv Circuit Court rau kev hloov pauv overvoltage. |
Cov ntaub ntawv Source: GB / T 7332-2025 thiab cov ntaub ntawv qhia kev los ntawm kev tsim khoom loj
1.2 Environmental thiab Reliability Specifications
Kev nyab xeeb chav kawm: Cov qauv qhia tshwj xeeb yog 40/85/21 (-40℃txog 85 degree, 21-hnub vaum kuaj), nrog qee cov qauv kub siab txog 55/125/21
Cov yam ntxwv kub: Ua haujlwm ntau -40℃txog 125 degree. Voltage derating yuav tsum tau ntawm 1.25% /℃siab tshaj 85 degree
Nplaim Retardancy Rating: Epoxy resin encapsulation ua tau raws li UL94 V-0 tus qauv, txaus siab rau cov khoom siv pov thawj kev nyab xeeb
II. Core Technical yam ntxwv ntawm CL21 Capacitor
2.1 Cov qauv zoo
Tsis yog -inductive winding txheej txheem: Siv metallized zaj duab xis uas tsis yog -inductive winding kom txo tau siab - zaus parasitic inductance, haum rau mem tes circuits
Unidirectional txhuas tsim: Cov qauv thaiv vaj huam sib luag nrog radial leads txhawb siab - ntom PCB mounting
Tus kheej- kho dielectric: Metallized zaj duab xis txheej nws tus kheej- kho tom qab overvoltage tawg, txhim kho ntev - lub sij hawm Circuit Court kev cia siab
2.2 Kev txwv kev ua haujlwm thiab lwm txoj kev daws teeb meem
Siab-Cov Kev Cai Siv Ntau zaus: Txawm hais tias sau tias "siab- tus yam ntxwv zaus," tanδ nce siab dua 10kHz. Tsis pom zoo rau siab - zaus oscillation circuits saum 20kHz.
High-Voltage Scenario Hloov: Thaum qhov hluav taws xob hluav taws xob ntau tshaj 250VDC, CBB21 polypropylene zaj duab xis capacitors raug pom zoo. Lawv muab qhov ntsuas hluav taws xob mus txog 1000VDC nrog qis qis.
Kauj Ruam 3 thiab 4: Txheej Txheem Kev Txiav Txim Siab
Kauj Ruam 1: Txhais cov kev ua haujlwm ntawm Circuit Court
Voltage Matching: Qhov kev ua haujlwm tiag tiag yuav tsum tsawg dua lossis sib npaug li 80% ntawm qhov ntsuas hluav taws xob (xws li xaiv 400VDC specification rau 220VAC rectifier circuits)
Kev suav Capacitance: Siv cov qauv lim dej C=I / (2πfΔU), piv txwv li, rau 1A tam sim no thiab 50Hz zaus nrog 1V ripple kam rau ua, capacitance yuav tsum siab dua lossis sib npaug rau 3180μF (yuav tsum muaj kev sib txuas ntawm ntau lub CL21 units lossis xaiv lwm hom)
Kauj ruam 2: Screen Key Parameters
Qhov Tseem Ceeb: Rated Voltage → Capacitance Range → Tangent of Loss Angle → Temperature Range
Piv txwv: Zog- txuag lub teeb rectifier xaiv yuav tsum 400VDC/0.1μF/Class J/tanδ Tsawg dua lossis sib npaug rau 0.006
Kauj Ruam 3: Environmental Adaptability Verification
Cov khoom siv sab nraum zoov yuav tsum paub meej txog kev nyab xeeb (piv txwv li, zam cov qauv ntsuas tsuas yog siab dua 0℃hauv -40℃cheeb tsam)
Cov chaw kaw cia yuav tsum tau ua pov thawj ntawm cov nplaim hluav taws retardancy ntsuas thiab thermal tsim los tiv thaiv epoxy resin laus ntawm qhov kub thiab txias
Kauj Ruam 4: Tus nqi sib npaug thiab cov khoom siv
Cov qauv tshwj xeeb (piv txwv li, 250V / 0.1μF) muaj cov khoom lag luam txaus
Cov kev txwv tshwj xeeb (piv txwv li, 630V / 10μF) xav tau 4-6 lub lis piam ua ntej xaj; pom zoo xaiv cov neeg muag khoom nrog ISO9001 ntawv pov thawj los ntawm ZZEC hom
IV. Kev Ua Lag Luam Kev Lag Luam thiab Kev Tswj Xyuas Kev Pom Zoo
Certification Verification: Xav kom cov neeg muab khoom siv los muab IEC 60384-2 daim ntawv tshaj tawm ua raws thiab RoHS ib puag ncig kev sim (CE-PROoHS 2.0 ua raws li EU kev lag luam pib xyoo 2025).
Batch Sampling Inspection: Ua kom pom tseeb ntawm kev ntsuas qhov sib txawv ntawm qhov sib txawv ( ntsuas ntawm 1kHz siv tus choj) thiab tiv taus qhov hluav taws xob (1.6Ur txhawb nqa 5 vib nas this tsis muaj kev puas tsuaj).
Kev pheej hmoo hloov pauv: Ceev faj ntawm CL11 (tsis yog- tus kheej- hom kho) ua kom zoo li CL21. Kev txheeb xyuas tuaj yeem ua tiav los ntawm tus pin pitch (CL21 feem ntau Ntau dua lossis sib npaug li 5 hli) thiab pob xim (epoxy puag xim yog ntau).
Xaus: Nrog rau lawv cov nqi siab -kev ua tau zoo thiab kev siv dav, CL21 capacitors tseem yog qhov nyiam tshaj plaws rau cov khoom me me - rau - cov khoom siv hluav taws xob nruab nrab. Thaum xaiv cov khoom, cov engineers yuav tsum zam qhov kev xav tsis zoo tias "qhov tsis zoo dua yog ib txwm zoo dua." Hloov chaw, lawv yuav tsum tau tshawb fawb los sib piv cov khoom raws li cov kev cai hauv Circuit Court tiag tiag thiab kev txwv ib puag ncig. Nws raug nquahu kom cov kws ua haujlwm tsim qauv peb- qauv ntsuas qhov ntsuas qhov sib xyaw ua ke "tsis muaj, daim ntawv thov scenarios, thiab tus nqi" siv cov txheej txheem txheej txheem uas tau teev tseg hauv tsab xov xwm no kom ua tiav qhov kev xaiv zoo tshaj plaws.