Surface-Mount Device (SMD) zvikamu zvakakosha mumagetsi emazuva ano. Izvi zvidimbu zvidiki zvinonamira zvakananga kune rakadhindwa redunhu bhodhi (PCB), zvichibvisa kudiwa kwechinyakare-maitiro kuburikidza-gomba soldering. Iyi dhizaini inochengetedza nzvimbo paPCB, ichibatsira kugadzira zvidiki, zvinoshanda zvakanyanya.
Kushandisa SMD zvikamu zvakare kunorerutsa kugadzira. Semuyenzaniso:
Kutenga zvakawanda kunoderedza mutengo wechikamu chimwe nechimwe.
Kushandisa zvikamu zvakafanana mumagadzirirwo kunobvumira kuderedzwa kwakawanda.
Kusarudza zvinhu zvinogona kuiswa nemichina zvinokurumidza kukurumidza kugadzirwa.
Iwo akasiyana-siyana eSMD mapakeji saizi anoita kuti aite zvakasiyana. Kubva kune madiki anopikisa kusvika kumatunhu akaomarara, saizi idzi dzinogamuchira akawanda maapplication. Musika wepasi rose wezvikamu zveSMD unoratidza kukosha kwazvo, uchikura kubva pamadhora bhiriyoni gumi neshanu muna 10.5 kusvika pamadhora mazana mashanu nemakumi mashanu emadhora panosvika 2023, nekukura kwepagore kwe17.5%.
Zvitsva Zvitsva
Zvikamu zveSMD zvinochengetedza nzvimbo pamabhodhi, zvichiita kuti zvishandiso zvidiki uye zvirinani.
Kutora saizi yeSMD yakakodzera kwakakosha pakushanda zvakanaka; madiki madiki anokodzera madiki emagetsi, makuru anobata simba rakawanda.
Zvikamu zveSMD zvinoita kuti kuvaka kuve nyore, kuchengetedza mari nekutenga kwakawanda uye nekukurumidza kugadzira.
Tantalum capacitors uye SMD transistors akakosha emagetsi emazuva ano, achipa kuita kwakadzikama uye kwakanaka mukushandisa kwakawanda.
SMD zvibatanidza zvinobatanidza zvikamu pamabhodhi, zvichipa zvakasimba uye zvakatsiga zvinongedzo mumagetsi anokurumidza.
SMD Package Saizi yePassive Zvikamu uye Diodes
Mhedziso yeResistors, Capacitors, uye Diodes
Resistors, capacitors, uye diode zvikamu zvakakosha zvemaseketi. Iwo anowanikwa mune angangoita ese maturusi, senge mafoni nemichina. Resistors vanogadzirisa kuti yakawanda sei ikozvino inoyerera mudunhu. Macapacitors anobata uye anosunungura simba kana zvichidiwa. Diodes inobvumira ikozvino kufamba munzira imwe chete. Zvikamu izvi zvinouya zvakasiyana SMD mapakeji, zvichiita kuti zvive zvakanaka kune zviduku zviduku.
SMD resistors uye capacitors kuchengetedza nzvimbo uye kushanda zviri nani mumasekete. Diodes inowanzoshandiswa kugadzirisa zviratidzo kana kudzivirira masekete. Iyo yakawanda SMD package sarudzo dzinokubatsira iwe kutora saizi chaiyo uye kuita kune zvaunoda.
Yakajairwa SMD Package Saizi yeResistors uye Capacitors
Resistors uye capacitors anouya akasiyana SMD saizi yekushandiswa kwakasiyana. Madiki madiki, senge 01005, anokodzera madiki gadget. Mahombe, senge 1206, anobata simba rakawanda. Heino tafura yeakajairwa SMD saizi uye mashandisiro awo:
Saizi Kodhi | Kuyera (mm) | Applications |
|---|---|---|
01005 | 0.4 X 0.2 | Zvishandiso zviduku zvikuru |
0201 | 0.6 X 0.3 | Mafoni, zvinopfekwa |
0402 | 1.0 X 0.5 | Zvemagetsi zvemumba |
0603 | 1.5 X 0.8 | Mota, mafekitari |
0805 | 2.0 X 1.3 | Masimba masimba |
1206 | 3.2 X 1.6 | High-power circuits |
Kune diode, saizi yeSMD yakakurumbira inosanganisira SMA, DO-214, uye SOD-123. Aya saizi anoitirwa mabasa akaita sekugadzirisa masaini kana kutonga simba. Chati iri pazasi inoratidza saizi yeakajairwa SMD diode mapakeji:
Zvishandiso zvePassive SMD Zvikamu
SMD resistors uye capacitors anoshandiswa mumidziyo yakawanda. Izvo zvakakosha mumagetsi, mota, uye michina yemufekitori. Semuyenzaniso:
Resistors: Batsira kudzora voltage uye kudzikisira ikozvino mumaseketi.
Capacitors: Chengetedza simba, masaini masaini, uye batanidza maseketi.
MaSMD diode akakosha pakugadzirisa masaini, kudzora voltage, uye kudzivirira maseketi. Zvigadzirwa zviduku zvakaita kuti zvikamu izvi zvive nani. Ivo zvino vashandiswa mune akangwara madivayiri uye yemazuva ano mota masisitimu.
Musika wezvinhu zvisingaite uri kukura nekukurumidza. Nyanzvi dzinoti icharova $ 345.7 mabhiriyoni ne 2034. Uku kukura kunokonzerwa neIoT uye kudiwa kwezvikamu zviduku, zvinoshanda. Mazano matsva ekurongedza zvakare anovandudza kushandiswa kwesimba uye kutonga kwesimba.
Tantalum Capacitors uye Yavo SMD Package Saizi
Mhedziso yeTantalum Capacitors
Tantalum capacitors idiki uye yakavimbika kwazvo. Vanoshandisa tantalum simbi, inochengeta mari yakawanda munzvimbo diki. Aya ma capacitors anozivikanwa mumagetsi emazuva ano nokuti anogara kwenguva refu uye anogara akagadzikana. Vanoshanda zvikuru mu low-voltage uye high-frequency circuits. Kusiyana nemamwe marudzi, vanobata zvakanyanya mamiriro ezvinhu zvakanaka. Izvi zvinoita kuti zvive zvakakwana kune zvakakosha kushandiswa.
Yakajairwa Tantalum Capacitor Package Mhando uye Zviyero
Tantalum capacitors inouya mune akasiyana SMD package saizi. Anonyanya kuzivikanwa ndeaya A, B, C, D, uye E. Saizi yega yega ine hukuru hwakasiyana uye maficha. Heino tafura iri nyore:
Package Code | Kuyera (mm) | Voltage Range | Applications |
|---|---|---|---|
A | 3.2 X 1.6 X 1.6 | 4V - 50V | Zvigadzirwa zviduku |
B | 3.5 X 2.8 X 1.9 | 4V - 50V | Zvishandiso zvemazuva ese |
C | 6.0 X 3.2 X 2.5 | 6V - 50V | Masimba masimba |
D | 7.3 X 4.3 X 2.8 | 6V - 50V | Zvishandiso zvefekitari |
E | 7.3 X 4.3 X 4.1 | 10V - 50V | High-simba michina |
Aya saizi anokubatsira iwe kutora iyo chaiyo capacitor. Iwe unogona kuenzanisa saizi, voltage, uye kuita kweprojekiti yako.
Zvishandiso muConsumer Electronics
Tantalum capacitors yakakosha mumagetsi. Kukura kwavo kudiki uye kuvimbika kunoita kuti zvive zvakanaka kune nzvimbo dzakasimba. Iwo anoshandiswa mumafoni, malaptop, uye mahwendefa. Vanobatsira nekusefa kwemagetsi, kusanganisa, uye kutsvedzerera. Aya mabasa anoita kuti michina ishande zvakanaka.
Mumaturusi akakosha senge pacemakers nemichina yekurapa, iwo akakosha. Vane yakaderera leakage ikozvino uye yakakwirira kuvimbika. Izvi zvinochengetedza kuchengeteka uye kurongeka mumamiriro ezvinhu akaoma. Kutora saizi yeSMD chaiyo inovandudza kuita uye kugona. Tantalum capacitors inoratidza kuti zvikamu zveSMD zvinosangana sei nezvinodiwa zvemazuva ano tekinoroji.
SMD Transistor Packages
Diki Outline Transistor (SOT) Packages
Diki Outline Transistor (SOT) mapakeji akajairika kune transistors. Iwo madiki, saka anokwana mushe mune yakazara PCB magadzirirwo. SOT mapakeji anouya muhukuru seSOT-23, SOT-223, uye SOT-89. Saizi yega yega inoshanda zvakanyanya kune mamwe mabasa. Semuenzaniso, SOT-23 yakanaka kune yakaderera-simba maseketi. SOT-223 iri nani pakubata simba rakawanda.
SOT mapakeji ane kudzora kupisa kukuru. Semuenzaniso, iyo HU3PAK package inotonhorera zvirinani pane D2PAK uye TO-LL. Inochengetedza tembiricha yakaderera pasi pesimba rimwechete rekushandisa. Izvi zvinoderedza kupera kwesimba uye zvinowedzera kushanda zvakanaka. SOT mapakeji isarudzo yakanaka yemaseketi anoda kunaka kwekupisa.
Mamwe Akakurumbira SMD Transistor Packages
Mamwe maSMD transistor mapakeji anosanganisira SOIC (Small Outline Integrated Circuit) uye DFN (Dual Flat No-lead). SOIC mapakeji akakura kupfuura SOT asi ane mapini akawanda. Izvi zvinoita kuti zvive zvakakosha kumasekete akaoma senge amplifiers uye voltage regulators.
DFN mapakeji madiki kwazvo uye haana anotungamira, achichengetedza nzvimbo paPCB. Iwo akakurisa kune dzakasimba dhizaini senge mafoni uye zvinopfekeka. Aya mapakeji zvakare anobata PCB zvakananga, achivabatsira kuti vagare vachitonhorera. Izvi zvinoita kuti varambe vachishanda zvakanaka, kunyangwe mumamiriro ezvinhu akaoma.
Zvikumbiro zveSMD Transistors
SMD transistors yakakosha mumagetsi emazuva ano. Saizi yavo diki uye dhizaini yakangwara inoita kuti vabatsire mumidziyo yakawanda. Zvinoshandiswa mumotokari, mafekitari, uye midziyo yemumba. Semuenzaniso, ivo vanovandudza mashandiro mune yakaderera-ruzha amplifiers. Mumaseketi emagetsi, vanodzora voltage neazvino kuti midziyo irambe ichishanda zvakanaka.
Miedzo inoratidza SMD transistors inoshanda nemazvo mukushandiswa kwehupenyu chaihwo. Semuenzaniso, X-band amplifier ine SMD transistors yakaratidza kushanda kukuru uye kugadzikana kwekupisa. Aya maficha anoita kuti SMD transistors ive sarudzo yepamusoro kune mainjiniya anovaka matunhu epamberi.
Yakabatanidzwa Circuit SMD Packages
Pamusoro pe IC SMD Packages
Integrated circuit SMD mapakeji akakosha mumagetsi emazuva ano. Vanodzivirira machipisi uye vanoabatanidza kumabhodhi edunhu. Nekufamba kwenguva, mapakeji aya akagadziridzwa kune zvidiki uye nekukurumidza zvishandiso. Zvigadzirwa zvekare zvakashandiswa kuburikidza ne-buri tekinoroji, yaida nzvimbo yakawanda. Izvi zvakaganhurira kuti michina yaigona kuita zvakanaka sei. Nhasi, high-density interconnect (HDI) teknolojia yakajairika. Inobvumira compact uye ine simba magadzirirwo.
Heino yakareruka nguva yeIC SMD package kufambira mberi:
Kuvandudza Kwakakosha | tsananguro | Impact |
|---|---|---|
Shanduko kuenda kuHDI | Yakachinjirwa kubva kuburi-gomba kuenda kuHDI tekinoroji | Yakagadzira michina midiki uye inoshanda zvakanyanya |
Kutanga kweBGA | Yakashandiswa bhora-grid arrays yekubatanidza | Yakaderedzwa masaini matambudziko anokonzerwa ne inductance |
Chip-Scale Packages | Mapakeji madiki kunge chip pachayo | Kuvandudzwa ukuru uye kurongedza kushanda zvakanaka |
Yakananga Chip Attachment | Inotungamira yakaiswa zvakananga pasilicon | Yakawedzera IC density uye kuita |
Shanduko idzi dzakaita IC SMD mapakeji zvakakosha kune zvigadzirwa zvemazuva ano. Ivo vanobatsira kugadzira zvidiki zvidiki pasina kurasikirwa nekuita.
Yakajairwa IC Package Mhando uye Zvivakwa Zvavo
IC SMD mapakeji huya mumhando dzakawanda dzine maitiro akasiyana. Kutora yakakodzera kunoenderana nehukuru, mapini, uye kutonga kwekupisa. Heino kuenzanisa kwemhando dzakajairika:
pasuru Type | Saizi Renji (mm) | Pin Count Range | Mukande (mm) | Thermal Performance |
|---|---|---|---|---|
Fabrika | 6 x 4 kusvika 64 x 14 | 8 kuna 64 | 2.54 | Low |
MFF | 4 x 4 kusvika 40 x 40 | 32 kuna 256 | 0.4 kuna 1.0 | eresera |
BGA | 5 x 5 kusvika 50 x 50 | 100 kusvika 1000+ | 0.5 kuna 1.27 | High |
CSP | 2 x 2 kusvika 10 x 10 | 16 kuna 200 | 0.4 kuna 0.8 | High |
DIP mapakeji ari nyore uye ari nyore kushandisa asi anoda imwe nzvimbo. QFP uye BGA mapakeji ari nani kune compact dhizaini. BGA mapakeji anobata kupisa zvakanaka, achiaita akakurisa kune yakakwirira-simba kushandiswa. CSP mapakeji ndiwo madiki, akakwana kumafoni uye zvinopfekwa.
Zvishandiso zveIC SMD Packages
IC SMD mapakeji anoshandiswa mumaindasitiri mazhinji. Kukura kwavo kudiki uye kugona kwavo kunoita kuti zvive zvakakosha. Mumagetsi evatengi, vanosimbisa mafoni, malaptop, uye masisitimu emitambo. Mumotokari, vanodzora masensa, varaidzo, uye injini.
Mune telecom, vanogadzira data muma routers uye switch. Zvishandiso zvekurapa senge pacemaker nemichina yekufungidzira inotsamira pazviri kuti ichokwadi. Aerospace uye masisitimu edziviriro anoashandisa kuomarara kwawo mumamiriro ezvinhu akaoma.
Kusarudza IC chaiyo SMD package inovandudza mashandiro, saizi, uye mutengo. Kunyangwe iri nyore gadget kana yakaoma system, aya mapakeji anopa kuchinjika uye kuvimbika.
SMD Zvibatanidza uye Nekushandisa Kwazvo
Nei SMD Zvibatanidza Zvine Basa muMagetsi
SMD zvibatanidza zvakakosha kune zvemazuva ano zvemagetsi. Vanobatsira zvikamu kubatana pa bhodhi redunhu (PCB). Aya ma-link anoita madhizaini madiki asi achiri kushanda nemazvo. Saizi yavo diki yakanakira maPCB akazara mumafoni, malaptop, uye zvishandiso zveIoT.
Kutora chinongedzo chakakodzera kunodzivirira zvikanganiso zvekugadzira. Shanda nevashambadziri nekukurumidza kuti uenzanise majoini kune zvaunoda. Zvimwe zvinongedzo zvinofanirwa kurarama mumamiriro akaoma, semakemikari kana kupisa. Vagadziri vanoshandisa zvinhu zvakasimba uye vanotevedzera mitemo yakaita seRoHS uye REACH. Mitemo iyi inomisa zvinhu zvinokuvadza senge lead nemercury. Izvi zvinochengetedza vashandisi uye pasi zvakachengeteka.
SMA uye SMB Connectors Overview
SMA uye SMB zvinongedzo zvakajairika mune yakakwirira-frequency zvemagetsi. SMA connectors screw on tightly for a strong connection. Vanoshanda zvakanaka pa microwave frequency, kusvika ku18 GHz. Zvimwe zvemberi SMA zvibatanidza zvinobata kusvika ku40 GHz. SMB zvibatanidza zvidiki uye zvinobatika zviri nyore. Izvo zvakanaka kune mafrequency anosvika ku4 GHz.
Connector Type | Frequency Limit | Features |
|---|---|---|
SMA | Kusvikira ku 18 GHz | Yakasimba screw-on dhizaini, inoshandiswa muRF zvishandiso. |
SMB | Kusvikira ku 4 GHz | Diki-snap-on dhizaini, inoshandiswa mukuyedza giya. |
Ose maatanidzi akanakira akakwira-frequency uye compact dhizaini. Izvo zvikamu zvakakosha zvemagetsi emazuva ano.
Inoshandiswa muRF uye Telecom Systems
SMD zvibatanidza seSMA neSMB zvinoshandiswa muRF uye telecom system. SMA connectors inowanikwa mune antennas, routers, uye amplifiers. Ivo vanoshanda nemazvo muma microwave masisitimu anosvika 26/28 GHz kana kupfuura. Sezvo tekinoroji ichienda ku60 GHz, SMA zvibatanidza zvinogara zvakavimbika uye zvinobatsira.
SMB zvibatanidza zvinoshandiswa mukuyedza maturusi. Saizi yavo idiki uye kushandiswa kuri nyore kunoita kuti ive yakakura pakubatanidza nekukurumidza. Iwo anoshandiswawo mumagajeti uko kuchengetedza nzvimbo kunokosha.
Kusarudza iyo chaiyo SMD yekubatanidza inovandudza mashandiro anoita zvishandiso. Ingave yeRF masisitimu kana telecom zvishandiso, izvi zvinongedzo zvinopa kuchinjika uye kushanda nesimba.
Zvikamu zveSMD zvakanakira zvemagetsi zvemazuva ano. Iwo madiki uye anoshanda nemazvo, achiita kuti ave akakwana kune dzakasimba dhizaini. Unogona kuzviwana mumagajeti, mota, uye telecom system. Ivo vanobata yakakwira frequency uye vane yakaderera kuramba, iyo yakanaka kune 5G tech. Aya maficha anoitawo kuti zvive nyore kuisa uye akavimbika kwazvo.
Paunenge uchitora saizi yeSMD, funga nezvezvinodiwa zvepurojekiti yako. Saizi diki inokodzera midziyo midiki, nepo hombe inobata simba rakawanda. Taura nevatengesi mangwanani kuti usarudze saizi yakanakisa yedhizaini yako.
FAQ
Chii chinonzi SMD mune zvemagetsi?
SMD zvinoreva Surface-Mount Device. Izvi zvikamu zvinonamira zvakananga kune redunhu bhodhi pamusoro. Kusiyana nevakuru kuburikidza ne-gomba zvikamu, maSMD anochengetedza nzvimbo uye anobvumira madiki magadzirirwo.
Ndinotora sei saizi yeSMD chaiyo?
Funga nezvezvido zvepurojekiti yako. Madiki madiki, senge 01005, anokodzera madiki gadget. Mahombe, senge 1206, anobata simba rakawanda. Tarisa dhetabheti yehukuru uye ruzivo kuti uenderane nePCB yako.
Zvikamu zveSMD zvakaoma kutengesa kupfuura zvikamu zveburi?
Zvikamu zveSMD zvidiki uye zvinoda kunyatso tengesa. Shandisa maturusi akaita seakanaka-tip solder irons kana reflow oveni kubatsira. Vanotangisa vanogona kuwana kuburikidza-gomba zvikamu zviri nyore, asi kudzidzira kunoita kuti SMD solder ive nyore.
Sei zvikamu zveSMD zvakajairika mumagetsi emazuva ano?
Zvikamu zveSMD zvidiki, zvakachipa, uye zvinoshanda nemichina. Ivo vanoderedza matambudziko echiratidzo uye vanobvumira yakaonda PCB marongero. Aya maficha anoita kuti ave akakwana kune zvishandiso semafoni uye smartwatches.
Ini ndinogona kushandura chikamu cheSMD kune chikamu-chegomba?
Zvinoenderana nebhodhi rako redunhu. Kuburikidza ne-gomba zvikamu zvinoda maburi akacherwa, ayo maSMD mabhodhi haana. Adapter inogona kushanda asi inogona kuderedza kushanda. Nguva dzose shandisa zvikamu zvinoenderana nedhizaini yako.
