SMD Capacitor Size: Yakazara Guide kuMLCC, Tantalum, uye Electrolytic Packages
Nhanganyaya kune SMD Capacitor Saizi
Kunzwisisa SMD capacitor saizi kwakakosha pakubudirira PCB dhizaini. Iwo emuviri mativi epamusoro Mount capacitors anokanganisa zvakananga bhodhi density, goho regungano, uye kushanda kwemagetsi mumaseketi ekumhanya. Kusarudza zvisizvo capacitor saizi kunogona kutungamirira kuzvinhu zvekuvimbika, kuwedzera mari, uye matambudziko ekugadzira.
Iri gwara rinofukidza SMD capacitor saizi makodhi, dimensional zviyero, magetsi maitiro, uye maitiro ekusarudza. Kuyera kwakaringana kunoita kuti madhizaini anosangana nezvose zviri zviviri kuita uye kugadzira zvinodiwa pamagetsi evatengi, masisitimu emaindasitiri, uye maapplication emotokari.
Chii chinonzi SMD Capacitors?
MaSMD capacitors zvinhu zvinosungirirwa pamusoro pevhu zvakagadzirirwa kugadzirwa kwePCB otomatiki, kusanganisira ma multilayer ceramic capacitors ( MLCC ), tantalum, uye electrolytic types. Maelectronics emazuva ano anofarira magadzirirwo eSMD nekuti anogonesa huwandu hwezvikamu, kukurumidza kugadzirwa, uye kushanda kwepamusoro-soro. Mitemo yehukuru inosiyana zvichienderana netekinoroji—ma ceramic capacitors anoshandisa ma dimensional codes nepo ma tantalum ne electrolytic types achishandisa case code designations.
SMD Capacitor Mhando
Kunzwisisa SMD Capacitor Size Makodhi
Imperial vs Metric Codes
SMD capacitor saizi inoshandisa maviri akafanana coding masisitimu. Imperial code (inch-based) yakajairika muNorth America, nepo metric kodhi inoshandisa mamirimita. Ose ari maviri anomiririra mativi emuviri akafanana anoratidzwa zvakasiyana.
| Imperial Code | Metric Code | Actual Dimensions |
|---|---|---|
| 0201 | 0603 | 0.6 × 0.3 mm |
| 0402 | 1005 | 1.0 × 0.5 mm |
| 0603 | 1608 | 1.6 × 0.8 mm |
| 0805 | 2012 | 2.0 × 1.25 mm |
| 1206 | 3216 | 3.2 × 1.6 mm |
Kodhi yeumambo inomiririra hukuru mumazana emainch—”0603″ inoratidza 0.06″ × 0.03″. Metric code inotaura zvakananga mamirimita—”1608″ zvinoreva 1.6 mm × 0.8 mm. Mainjiniya anofanirwa kuziva masisitimu ese ari maviri kudzivirira kutenga uye zvikanganiso zvekugadzira.
Nei SMD Capacitor Size Inokosha Nemagetsi
Zviyero zvemuviri zvinokanganisa zvakanyanya kushanda kwemagetsi pane akawanda ma paramita:
- Voltage kugona -Mapakeji akakura anogara akakora dielectrics, achigonesa yakakwira voltage ratings
- High-frequency mhinduro -Madiki madiki anopa yakaderera ESL uye ESR, inovandudza kubatanidza kushanda pamusoro pe10 MHz
- DC bias sensitivity - 0402 capacitors inorasikirwa ne60-80% capacitance pasi peyakayerwa voltage; 0805 mapakeji anorasikirwa chete ne30-40%
- Current kubata -Mapakeji akakura anobvisa kupisa zvirinani, achitsigira akakwira ripple zvazvino zvakatemwa
SMD Capacitor Size Chart
Standard SMD MLCC Sizes Chart
Kunzwisisa hukama huripo pakati pehukuru hweSMD capacitor, capacitance values, uye voltage ratings zvinoita kuti pave nesarudzo yezvikamu zvine ruzivo. Mapakeji e ceramic capacitor akajairwa anotevedzera mapatani akafanana pakati pevagadziri.
Maximum capacitance mumadiki madiki inoda yakakwira-K dielectrics (X5R, X7R), iyo inoratidza yakakura DC bias mhedzisiro. Maapplication anoda ese ari maviri epamusoro capacitance uye kugadzikana kwevoltage zvinoda hukuru hwepasuru kunyangwe paine zvimhingamipinyi zvebhodhi.
| Imperial Code | Metric Code (mm) | Dimensions (L × W × H mm) | Typical Capacitance Range | Typical Voltage Rating |
|---|---|---|---|---|
| 01005 | 0402 | 0.4×0.2×0.2 | 0.1 pF - 100 nF | 4-10 V |
| 0201 | 0603 | 0.6×0.3×0.3 | 0.1 pF - 0.22 µF | 6.3-16 V |
| 0402 | 1005 | 1.0×0.5×0.5 | 0.1 pF - 1 µF | 10-25 V |
| 0603 | 1608 | 1.6×0.8×0.8 | 10 pF - 10 µF | 16-50 V |
| 0805 | 2012 | 2.0×1.25×1.25 | 100 pF - 22 µF | 25-100 V |
| 1206 | 3216 | 3.2×1.6×1.6 | 1 nF - 47 µF | 50-200 V |
| 1210 | 3225 | 3.2×2.5×2.5 | 1 nF - 100 µF | 50-250 V |
| 1812 | 4532 | 4.5×3.2×2.5 | 10 nF - 100 µF | 100-500 V |
| 2220 | 5650 | 5.7×5.0×2.5 | 100 nF - 220 µF | kusvika ku1 kV |
1. Hukuru MLCC saizi kazhinji kupa yakakwirira voltage ratings uye yakakwirira capacitance.
2. Diki MLCCs (0201/0402) inotambura zvakanyanya kubva kuDC bias effect.
SMD Tantalum Capacitor Sizes Chart
| Case Code | Dimensions (L × W × H mm) | Typical Capacitance Range | Typical Voltage Rating | Common Package Mienzaniso |
|---|---|---|---|---|
| A (3216-18) | 3.2×1.6×1.8 | 0.1 µF - 220 µF | 2.5-35 V | TAJA, TPS-A |
| B (3528-21) | 3.5×2.8×2.1 | 1 µF - 470 µF | 4-50 V | TAJB, TPS-B |
| C (6032-28) | 6.0×3.2×2.8 | 2.2 µF - 680 µF | 4-50 V | TAJC, TPS-C |
| D (7343-31) | 7.3×4.3×3.1 | 10 µF - 1000 µF | 6.3-50 V | TAJD, TPS-D |
| E (7343-43) | 7.3×4.3×4.3 | 10 µF - 1500 µF | 6.3-63 V | TAJE |
| V (7343-20 Low Profile) | 7.3×4.3×2.0 | 4.7 µF - 680 µF | 6.3-35 V | Yakaderera-mbiri shanduro |
1. Macapacitor eTantalum anoshandisa mabhii emhando yepamusoro, kwete macode ehumambo.
2. Vanopa high capacitance density, asi yakaderera surge ikozvino kugona kupfuura MLCC.
SMD Electrolytic Capacitor Sizes Chart (Aluminum SMD)
| Case Diameter × Kureba (mm) | Typical Capacitance Range | Typical Voltage Rating | Zvinowanzoitwa Zvikumbiro |
|---|---|---|---|
| 4 × 5.4 | 1 µF - 47 µF | 4-16 V | Low-simba DC maseketi |
| 5 × 5.4 | 4.7 µF - 100 µF | 6.3-25 V | Zvevatengi zvemagetsi |
| 6.3 × 5.4 | 10 µF - 220 µF | 6.3-35 V | General-chinangwa kusefa |
| 6.3 × 7.7 | 22 µF - 330 µF | 10-50 V | Simba rails |
| 8 × 10 | 47 µF - 1000 µF | 16-63 V | DC-DC converters |
| 10 × 10 | 100 µF - 1500 µF | 16-100 V | Industrial power systems |
| 10 × 12.5 | 220 µF - 2200 µF | 16-100 V | Motokari, madhiraivha e LED |
| 12.5 × 13.5 | 330 µF - 3300 µF | 25-100 V | High-ripple magetsi ekushandisa |
1. Aluminium SMD capacitors inotevera dhayamita × kureba kutumidza zita, kwete imperial code.
2. Magaba makuru = yakakwirira ripple ikozvino uye yakakwirira voltage kugona.
Maitiro ekuziva SMD Capacitor Size
Nzira dzekuyera nadzo
Kuyera kwemuviri uchishandisa precision calipers inopa yakananga saizi kuzivikanwa. Eresa zvese kureba nehupamhi, wobva wafananidza zviyero kune akajairwa saizi macode. PCB tsoka yezviyero muCAD software zvakare inoratidza zvakanangwa chikamu saizi kuburikidza nepad-to-pad spacing uye mapatani emhangura.
Kuverenga Manufacturer Codes
Mazhinji SMD capacitors anoshaya mamaki emuviri nekuda kwehukuru hwavo hudiki. Kuzivikanwa kunoenderana ne:
- Kutakura kwepakutanga -Inoratidza yakazara chikamu nhamba uye zvakatemwa pane tepi reels
- BOM zvinyorwa -Muchinjika-referensi gungano mafaera ane mugadziri datasheets
- IPC-7351 tsoka -Pad zviyero uye spacing inoratidza zvakagadzirirwa chikamu saizi
- Mafaira ekuisa -Kutora-uye-nzvimbo data inosimbisa saizi makodhi pamberi pegungano
Kusarudza SMD Capacitor Size: Magetsi uye Mechanical Factors
Electrical Performance Characteristics
Saizi yepakeji inokanganisa zvakananga frequency mhinduro uye kubata ikozvino. Madiki SMD capacitor saizi senge 0402 anoratidza 30-50% yakaderera ESL pane 0805 mapakeji, achivaita vakakwirira kune yakakwira-frequency decoupling pamusoro pegumi MHz. Ripple yazvino kugona zviyero zvine saizi yemuviri-mapakeji akakura anobvisa kupisa zvakanyanya kuburikidza nematerminal uye uremu hwemuviri.
Voltage Rating Kufunga
Voltage ratings inowedzera neSMD capacitor saizi nekuti makuru mapakeji anotora akakora dielectric layer. Indasitiri maitiro akanakisa anokurudzira kushanda pa50% yeyakatemerwa magetsi ekushandisa kwevatengi uye 30% yemotokari kana maindasitiri. Ichi chinodzikisira chinodiwa kazhinji chinoda hukuru hukuru kupfuura magadzirirwo emagetsi ega angaratidza.
Mechanical Kuvimbika Zvinhu
Mechanical stress kubva kubhodhi flexure inogadzira nzira dzakasiyana dzekutadza pane capacitor saizi:
- Flex cracking ngozi - 0805 uye yakakura MLCCs inosangana nekutambudzika kukuru panguva yekukotama kwePCB nekuda kwekuwedzera kureba kweruoko
- Vibration kuramba -Madiki saizi anomira kuvhunduka zvirinani nekuda kwehuremu hwakaderera uye kuderedzwa kwemakanika kushushikana kushushikana
- Thermal cycling -Mapakeji akakura anopa akakora terminal ekubatanidza ayo anogadzirisa zviri nani kupisa kwekuwedzera kusawirirana
- Kubata kunzwa - 0201 uye 0402 zvikamu zvinoda kungwarira maitiro ekudzivirira kukuvara panguva yekuungana
SMD Tantalum Capacitors
PCB Layout Guidelines yeSMD Capacitor Size
Pad Design Standards
IPC-7351 inopa yakamisikidzwa nyika mapatani inotsanangura mapadhi zviyero zvinoenderana nechikamu kushivirira uye density level. Mapadhi anowanzo wedzera 0.1-0.3 mm kupfuura kumiswa kwechikamu. Madiki SMD capacitor saizi senge 0201 uye 0402 inoda kushivirira kwakaomarara uye kunyatsojeka stencil alignment panguva yegungano.
Strategic Placement
Ma capacitor ekudhonza anofanira kuiswa pedyo ne IC power pins, ne 0201 ne 0402 saizi dzinopa kudzvinyirirwa kwakanyanya kweruzha rwe high-frequency. Deredza kuisa uye kurongeka kwe trace routing pakati pe capacitors nema power pins kuderedza parasitic inductance. Dzivisa kuisa ma capacitor makuru e ceramic pedyo nemipendero yebhodhi kana maburi ekukwirisa uko kushushikana kwe mechanical kunonyanya.
Gungano Rekuita Zvinofungwa
Zvidiki zvezvikamu saizi zvinoda kusimba reflow process control. Kupisa kusaenzana kana kuwandisa solder paste kunokonzera tombstone, kunyanya kuomarara ne0201 uye 0402 saizi nekuda kwehuremu hushoma. PCB warpage panguva yekuyerera inogona kugadzira pad coplanarity nyaya ine yakakura capacitor saizi-yekudzora bhodhi ukobvu, kugovera mhangura, uye reflow chimiro chechimiro kudzivirira kukanganisa.
Zvakajairwa Zvishandiso neSMD Capacitor Size
Yakasiyana SMD capacitor saizi inoshandisa chaiyo application zvinodiwa zvinoenderana nemagetsi uye emuviri maitiro. Nzvimbo-inomanikidzwa nevatengi zvemagetsi zvinofarira madiki saizi kusangana nevoltage uye capacitance zvinodiwa, nepo mota nemaindasitiri zvikumbiro zvinotungamira kuvimbika uye kushanda kwemafuta.
| Package Size | Primary Applications |
|---|---|
| 0201 | RF modules, 5G kutaurirana, smartphone processors, yakakwirira-kumhanya kusiyanisa kusaina |
| 0402 | General chinangwa decoupling, IoT zvishandiso, zvinopfeka zvemagetsi, compact mutengi zvigadzirwa |
| 0603 | Microcontroller magetsi njanji, madhiraivha e LED, USB kuendesa magetsi, zvakajairika maindasitiri emagetsi |
| 0805 | Nguva dzemasekete, epakati voltage application, mota infotainment, magetsi ekupa kusefa |
| 1206 | Industrial mota madhiraivha, mota powertrains, yakakwira-voltage switching zvinhu, zvekunze zvekushandisa |
Maitiro ekusarudza iyo Right SMD Capacitor Size
Tsanangura Magetsi Zvinodiwa Kutanga
Tanga nekumisikidza zvakakosha paramita: inodiwa capacitance, yakanyanya kushanda voltage, frequency mhinduro, uye ripple current. Funga nezve DC bias mhedzisiro yeceramic capacitors-inoshanda capacitance inoderera zvakanyanya pasi peyakayerwa voltage mumapakeji madiki. Tembiricha coefficient uye dielectric mhando zvakare inokanganisa saizi kusarudzwa.
Simbisa Kuwanikwa Kwekutengesa
Haasi ese musanganiswa we capacitance, voltage rating, uye saizi yepasuru iripo. High capacitance values se22 µF haiwanzo kuoneka mumapakeji 0402 pamusoro pe6.3V rating. Bvunza mugadziri parametric maturusi kuti uone zvakatemwa zvinogona kusangana muhukuru hunodiwa usati wazvipira kune dhizaini. Saizi dzakajairwa (0402, 0603, 0805) dzinopa sarudzo dzakakura dzemupi uye kuwanikwa kuri nani.
Balance Design Constraints
Zvinhu zvakawanda zvinopesvedzera yakakwana SMD capacitor saizi kusarudzwa:
- Board nzvimbo yekugovera - Zvipfeko zvakasungirirwa zvinosundira ku0201/0402; maindasitiri controllers anogara akakura, akasimba mapakeji
- Assembly kugona - Midziyo yekugadzira uye kukura kwemaitiro kunogona kudzora mashoma echikamu saizi
- Cost optimization - 0402 zvikamu zvinowanzoita 2-3 × kupfuura yakaenzana 0603 saizi; mari yegungano inowedzerawo ne miniaturization
- Kuvimbika zvinodiwa -Mota uye maindasitiri ekushandisa anowanzo kufarira 0603-1206 saizi yeakaratidza kushanda kwenguva refu.
SMD Capacitor Size Tafura
Kuenzanisa: Diki vs Yakakura SMD Capacitor Size
Kunzwisisa kutengesa-offs pakati peakasiyana SMD capacitor saizi inobatsira mainjiniya kuita sarudzo dzine ruzivo rwekugadzira. Hapana chikamu chiri pamusoro-pasirese-zvinodikanwa zvekushandisa, kugona kugadzira, uye mutengo unotarirwa zvinotaridza huwandu hwakakwana hwedhizaini yega yega.
| mamirire | Madiki Madiki (0201-0402) | Hukuru Hukuru (0805–1206) |
|---|---|---|
| Capacitance Range | Yakaganhurirwa, kazhinji <1 µF | Yakapamhamha, inosvika 100+ µF |
| ESR/ESL | Pazasi, zvirinani kune HF decoupling | Yakakwirira, asi yakakwana kune akawanda maapplication |
| Voltage Rating | Yakaganhurirwa, kazhinji <25V | High, kazhinji 50-200V |
| DC Bias Effect | Yakakura capacitance kurasikirwa | Pakati nepakati capacitance kurasikirwa |
| Mechanical Kuvimbika | Fragile panguva yekubata, zvirinani vibration kuramba | Njodzi yekutsemuka kuputika, zvirinani kupisa bhasikoro |
| Assembly Cost | Yakakwirira, inoda midziyo chaiyo | Lower, mwero muitiro kugona |
| Component Cost | Premium mitengo | Economical for standard values |
mhedziso
Munda Kucherechedzwa paSMD Capacitor Saizi Sarudzo
Mushure memakore ekuongorora zviuru zvePCB dhizaini paHighleap Electronics, takaona kuti SMD capacitor saizi sarudzo inowanzobatwa sechipiri-asi inokanganisa zvakananga kugadzikana kwedunhu uye kuvimbika kwenguva refu. Nyaya dzakadai se0402 MLCCs dzinorasikirwa nepamusoro pe70% ye capacitance yavo pasi pe DC bias inowanzoitika, kunyanya mumagetsi emagetsi apo vagadziri vanoisa pamberi pebhodhi nzvimbo pamusoro pekushanda kwemagetsi.
Nyaya Dzakajairwa Nechekuita neUndersized or Oversized Capacitors
Undersized capacitors kazhinji anoratidza kuderedzwa kunoshanda capacitance, yakakwira ESR/ESL, uye kuwedzera kukonzeresa kushushikana kwekupisa. Nekune rimwe divi, mapakeji akakura senge 1206 anogona kusangana nekutsemuka munzvimbo dzakasimbiswa nemuchina, kunyanya mumotokari uye zvigadzirwa zvemaindasitiri. Idzi nyaya dzinowanzo tevera kumashure kusarudzo yehukuru kwete yemhando yechikamu.
Mafungiro eInjiniya eKukura Kwakakodzera
Saizi yeCapacitor inofanirwa kutariswa nezvakawanda kupfuura zvipingamupinyi zvehurongwa. Zvinhu zvinosanganisira DC bias maitiro, voltage derating, hunhu hwekupisa, kuvimbika kwemuchina, uye kugona kwegungano zvese zvinopesvedzera sarudzo yekupedzisira. Mukuita, saizi diki senge 0201 kana 0402 dzinoita zvakanakisa mu-high-frequency node, 0603 kana 0805 inoshanda zvakanaka pakudzoreredza zvakajairika, uye 1206 kana hombe inokodzera yakakwira-voltage kana yakakwirira-capacitance zvinodiwa.
Mibvunzo Inonyanya Kubvunzwa
0402 uye 1005 saizi yakafanana here?
Hongu, 0402 (imperial) uye 1005 (metric) inomiririra zviyero zvakafanana zve 1.0 × 0.5 mm. Iwo macode akasiyana anoratidza inch-based maringe nemamillimeter-based kuyerwa zvibvumirano.
Ndeapi saizi MLCC yakanakira kubatanidza?
Nezvese chinangwa chekubvisa, 0402 uye 0603 saizi inopa yakakwana chiyero chekuita, mutengo, uye kuvimbika kwegungano. High-frequency applications pamusoro pe100 MHz inobatsirwa kubva ku0201 mapakeji nekuda kwekudzika kweparasitic inductance. Bulk decoupling inoshandisa 0805 kana 1206 saizi kune yakakwirira capacitance kukosha.
Sei maMLCC madiki achirasikirwa nehunyanzvi pasi peDC bias?
Diki Ceramic capacitor inoshandisa yakakwirira-K zvinhu (X5R, X7R) yakamanikidzwa kuita zvidimbu zvitete. Inoshandiswa magetsi inogadzira yakakwira simba remunda wemagetsi inozadza iyo ferroelectric zvinhu, ichideredza kubvumidzwa kunoshanda. Mapasuru madiki ane madiki dielectrics uye nekudaro akakwira simba remumunda pamagetsi akaenzana, zvichikonzera kurasikirwa kwe60-80% muhukuru 0402 zvichienzaniswa ne30-40% mumapakeji 0805.
Ko 0201 MLCCs inogona kutengeswa nemaoko?
Nepo tekinoroji zvichigoneka nematurusi ane hunyanzvi uye kukwidziridzwa, kushambadzira nemaoko 0201 zvikamu hazvigoneke pakugadzira. Aya madiki saizi anoda otomatiki pick-ne-nzvimbo midziyo uye reflow oveni kuitira kusangana kwakavimbika.
Ndeapi SMD capacitor saizi anoshandiswa mumotokari dzemagetsi?
Zvishandiso zvemotokari zvinonyanya kushandisa 0603, 0805, uye 1206 saizi. Aya mapakeji anopa akakwana voltage ratings (50-200V), mechanic kusimba kwekuzunguza uye kupisa bhasikoro, uye kuvimbika kwakaratidza pasi pemamiriro ekunze akaomarara.
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Ngatimhanyei DFM/DFA ongororo yenyu todzokera kwamuri nereport. Unogona kurodha mafaera ako zvakachengeteka kuburikidza newebhusaiti yedu. Isu tinoda ruzivo rwunotevera kuti tikupe iwe quote:
-
- Gerber, ODB++, kana .pcb, spec.
- BOM rondedzero kana iwe uchida kusangana
- uwandu
- Kuchinja nguva
Pamusoro pekugadzira PCB, isu tinopa huwandu hwakakwana hwemagetsi masevhisi, anosanganisira PCB dhizaini, PCBA, uye turnkey mhinduro. Kunyangwe iwe uchida rubatsiro neprototyping, dhizaini yekusimbisa, kutsvagisa chikamu, kana kugadzirwa kwakawanda, isu tinopa yekupedzisira-kusvika-kumagumo rutsigiro kuti uve nechokwadi chekubudirira kweprojekiti yako.
Kune masevhisi ePCBA, ndapota ipa BOM yako (Bhiri reZvinhu) uye chero mirairo yegungano. Isu tinopawo DFM/DFA ongororo yekukwidziridza zvigadziriso zvako zvekugadzira uye kusangana, kuve nechokwadi chekuita kwakatsetseka kwekugadzira.