Mabhodhi emagetsi evatengi anoda maPin Headers akajairwa uye ane huwandu hwakanyanya — 2.54mm uye 1.27mm ePCB Assembly Houses
- Mabhodhi emazuva ano emagetsi emagetsi evatengi anowanzo sanganisa ma 2.54mm standard-pitch ne 1.27mm high-density pin headers pabhodhi rimwe chete kuti nzvimbo ienderane, signal integrity, uye manufacturability agone kugadzirisika.
- Iyo 2.54mm pitch inoramba iri iyo inoshanda muindasitiri yemagetsi, mapurogiramu, uye debug interfaces, nepo 1.27mm pitch inoshanda panzira dzemasaini dzinomhanya zvakanyanya nenzvimbo dzebhodhi dzakamanikana.
- Sarudzo yezvinhu uye mapuratifomu — tin, gold, kana mapuratifomu akasarudzwa — zvinokanganisa zvakananga mutengo, kugona kusundidzira, uye kutsungirira kwekufamba kwenguva.
- Dzimba dzekugadzira zvinhu dzinobatsirwa nekutsvaga mhuri dzese dzekutengesa zvinhu kubva kumugadziri mumwe chete kuti dzisimbise kudzora kwemhando, kuderedza kuoma kwekutengesa zvinhu, uye kuchengetedza mitengo yehuwandu.
Nei Makombiyuta Emazuva Ano Evatengi Achida Kuwanda KwemaPin Header Aviri
Patinoongorora marongerwo emabhodhi ezvigadzirwa zvemagetsi zvemazuva ano — kubva kuma smart home hubs nema IoT gateways kusvika kuma gaming peripherals nezvishandiso zvekurapa zvinotakurika — patani yakajeka inobuda. Vagadziri havachasarudzi pakati pezvinobatanidza zve standard-density ne high-density; vari kushandisa zvese paPCB imwe chete. Iyi nzira ye dual-pitch yave iyo default architecture yechero bhodhi inofanira kuyera kushanda zvakanaka kwemari nezvinhu zvinodzikira.
Simba rinosimudzira maitiro aya riri nyore. Sezvo zvinhu zvichiwedzera uye mafambiro ebhodhi achiderera, square millimeter yega yega yePCB real estate ine mutengo. 2.54mm pin header inoshandisa nzvimbo yebhodhi yakapetwa kanenge kana kupfuura 1.27mm yakaenzana nehuwandu hwemapini akafanana. Asi chiyero che2.54mm chinoramba chiripo nekuti chinopa simba remakanika, kugadzirisa patsva nemaoko kuri nyore, kushandira pamwe kwese kwese kwekushandisa maturusi, uye kuvimbika kwenguva refu mukutumira magetsi uye ma interface ekudzora anomhanya zvishoma.
Panguva imwe chete, kuwanda kwema "serial interfaces" anomhanya zvakanyanya akadai seMIPI, LVDS, uye USB 3.x pama "consumer boards" kunoda nzvimbo yakabatana ye "pin space" kuti ichengetedze "controlled impedance" uye kuderedza urefu hwe "stub". Iyo 1.27mm pitch pin header" inopindura chishuwo ichi, ichipa "compact interconnect" inotsigira zvinodiwa zve "signal integrity" uku ichiramba ichienderana nemaitiro eSMT assembly. Takaona kuwedzera kwakasimba kwehuwandu hwe1.27mm connectors mu "bills" yezvinhu zvatinogamuchira kubva kuvatengi vedu ve "assembly-house" mumakore matatu apfuura, uye tinotarisira kuti maitiro iwayo acharamba aripo.
Kunzwisisa nzira yekutsanangura, kutenga, uye kuunganidza mhuri dzese dzekubatanidza saka ruzivo rwakakosha kune chero imba yePCB inoshandira chikamu chemagetsi evatengi. Mugwaro iri, tinofamba nehunyanzvi hwepitch yega yega, tinotsanangura marongerwo anoshanda uye nzira dzekutenga, uye tinogovana maparamita ekudzora mhando atinoshandisa mukugadzira kwedu kuti tive nechokwadi chekuti pin header yega yega yatinotumira inosangana nezvinodiwa zve automated pick-and-place lines.
2.54mm Standard: Basa rePCB Interconnections
Chinongedzo chepin header che2.54mm (0.100-inch) chingangove chiri chinobatanidza chinoshandiswa zvakanyanya kubva pabhodhi kuenda pabhodhi uye kubva pabhodhi kuenda pawaya muindasitiri yezvemagetsi. Kwakatangira kubva pakutanga kwekugadzirwa kwePCB, uye pasinei nekuchinja kwemakumi emakore kuenda kune tekinoroji yekumonera pamusoro, 2.54mm pitch haina kungoramba iripo chete asi yakabudirira. Tinogadzira mamiriyoni e2.54mm pin headers mwedzi wega wega muNingbo facility yedu, uye kudiwa kwacho kuchiri kwakasimba muchikamu chega chega chezvigadzirwa zvatinopa.
Zvinhu zvakawanda zvinotsanangura kuti bhora iri rinogara kwenguva refu sei. Chekutanga, nzvimbo ye 2.54mm inopa nzvimbo yakakura pakati pemapini ari pedyo, izvo zvinoreva kuti magadzirirwo akajairika. Michina yekuisa otomatiki inogona kuisa ma connectors aya nekukurumidza zvine mwero wakaderera wekukuvara, uye kunyangwe kuiswa nemaoko panguva yekunyora kana kugadzirisa patsva kuri nyore. Chechipiri, chikamu chepini che 2.54mm headers chinowanzova 0.64mm square, zvichiita kuti pini yega yega ive yakasimba uye inokwanisa kutakura magetsi zvakanaka uye I/O inoshanda zvakanyanya.
Mumashandisirwo emagetsi emagetsi evatengi, tinogara tichiona ma pin headers e2.54mm anoshandiswa paJTAG debug interfaces, SPI neI2C programming headers, fan connectors, front-panel control signals, uye assistant power distribution. Aya ma interfaces uko kumhanya kwesignal kuri kushoma (kazhinji pasi pe50 MHz), kugara kwenguva refu kwemuchina kwakakosha, uye kugona kubatanidza nekubvisa ma test fixtures kana tambo nemaoko chinhu chinodiwa pakugadzira. Standard iyi inotsigirwawo ne ecosystem yakakura: anenge connector vese vanotengesa, cable assembly house, uye PCB design tool inopa 2.54mm-compatible components and footprints.
Kubva pamaonero eimba yekubatanidza, bhora re2.54mm rine zvakanakira zvikuru pakuita basa. Mapurofayiri e solder anodzokororwa anorerutsira, njodzi yekutema matombo yakaderera nekuda kwehuremu hwakakura hwepini, uye kuongorora nemaziso kuri nyore nekuti bhora rakafara rinoita kuti fillets dze solder dzive nyore kuongorora. Patinokurukura ruzivo rwekubuda kwevatengi vedu navo, mabhodhi ane ma connectors e2.54mm anowanzo ratidza mikana yakaderera yekukanganisa pamiriyoni kupfuura ayo ane dzimwe nzira dzekuwedzera simba. Rekodhi iyi yekuvimbika ndiyo inoita kuti vagadziri vazhinji vachengetedze nemaune ma power and control interfaces pa grid ye2.54mm kunyangwe pavanofambisa nzira dzesignal kuenda kuma points akapfava.
Sarudzo ye1.27mm High-Density: Kuchengetedza Nzvimbo uye Kuvimbika kweSignali
Kunyange hazvo pitch ye2.54mm ichibatsira zvikuru pakubatanidza zvinhu zvakasiyana-siyana, zvinova mutoro kana dzimba dzebhodhi dzisiri shoma uye ma signal frequency achikwira kupfuura mazana mashoma emegahertz. Apa ndipo panopinda 1.27mm (0.050-inch) pin header. Nekupatsanura pakati pepini kubva pakati kusvika pakati, pitch ye1.27mm inobvumira vagadziri kurongedza kanenge ka4 density yekubatanidza munzvimbo imwe chete yebhodhi kana nzvimbo yetsoka.
Kuchengetedza nzvimbo kunobva kwaonekwa pakarepo kana tikaenzanisa zviyero zvetsoka padivi nepadivi. Musoro we 2x25 pin pa 2.54mm pitch unoreba 63.5mm; configuration imwechete ye 50-pin pa 1.27mm pitch inoda 31.75mm chete. Kune mudziyo mudiki wevatengi — speaker yakangwara, controller inopfekwa, kana miniaturized industrial HMI — musiyano iwoyo unogona kuva muganho pakati pekuiswa kwedhizaini munzvimbo yakatarwa kana kuda kugadzirwa patsva kwebhodhi kunodhura.
Kupfuura kuchengetedza nzvimbo isina kugadzirwa, 1.27mm pitch inopa zvakanakira zvine musoro zvesignal-integrity. Kureba kwemapini mapfupi uye kubatana kwakasimba pakati pemapini ari pedyo kunoderedza parasitic inductance, izvo zvinovandudza mhando yemasaini ane frequency yakakwira. Patinoshanda nevatengi vanogadzira mabhodhi ane masaini eLVDS display, MIPI camera interfaces, kana nzira dzedata dzeUSB 3.2, vanosarudza zvakanyanya mapini e1.27mm enzira idzi dzakakosha. Kureba kwepini kwakaderedzwa kunoderedzawo njodzi yekuratidzira kwakakamurwa, kunetseka kunova kwakanyanya pamusoro peinenge 400 MHz.
Zvakakosha kubvuma kuti pane musiyano. Kupidigura kwe1.27mm kunoda kushivirira kwakasimba mukugadzirwa - kuchinjika kwesimbi kunofanirwa kudzorwa mukati me0.10mm, uye kushivirirana kwepini kunenge hafu yezvinobvumirwa pa2.54mm. Zvinodiwa zvekugadzirisa otomatiki kunowedzera, uye kuongororwa kweX-ray kana AOI kunogona kudiwa kuti tione hunhu hwesolder joint pasi pemiviri yepitch. Tinogadzirisa matambudziko aya kuburikidza nekunyatso simbisa madhiri, kuongorora kwekuona kwemukati memutsetse paburiro redu rekugadzira, uye kushanda pamwe chete nevatengi vedu kuti vaone kuti assembly inoenderana nekugadzira zvinhu zvakawanda isati yatanga.
Maitiro Ekugadzira PCB Yenzvimbo Dzekuungana Dzimba Dzekuungana
Kugadzira motherboard ine 2.54mm ne1.27mm pin headers kunoda kuronga nokungwarira kudzivirira matambudziko anowanzoitika. Takatsigira mazana emadhizaini emabhodhi ane mapitch maviri mumakore apfuura, uye nzira dzakawanda dzakanaka dzagara dzichiratidza kukosha kwawo. Nheyo yekutanga ndeyekupatsanurana kwenzvimbo. Tinokurudzira kuisa ma connectors ese e2.54mm munzvimbo imwe chete yebhodhi uye ese e1.27mm munzvimbo yakasiyana, zvakanaka kuti zvive pamipendero yakasiyana yebhodhi. Kupatsanurana uku kunoita kuti zvigadziriso zvive nyore panguva yekubatanidza otomatiki, kunoderedza njodzi yekutsiva zvikamu netsaona, uye kunoita kuti kuongororwa kwemhando kuve nyore.
Nheyo yechipiri ndeyekuenderana kwenzvimbo. Ma pin headers ese epitch imwechete pabhodhi rakapihwa anofanira kunge aine nzira imwechete yekutarisa kana tichienzanisa ne primary axis yebhodhi. Iyi tsika inoderedza huwandu hwekuchinja kwe feeder uye kutenderera kwe nozzle kunodiwa nemuchina we pick-and-place, zvichivandudza zvakananga nguva yekutenderera uye kuderedza zvikanganiso zvekuisa. Muruzivo rwedu, mabhodhi anotevera iyi anowana mwero wekuisa ne 8 kusvika 12 muzana nekukurumidza kupfuura ayo ane nzira dzakasiyana.
Kutarisira kupisa panguva yekudzoreredza magetsi ndeimwe pfungwa inokosha. Ma pin headers e2.54mm ne1.27mm ane ma thermal masses akasiyana, zvinoreva kuti anotora uye anobvisa kupisa nematanho akasiyana panguva yekudzoreredza magetsi. Kana marudzi ese econnector akaiswa pabhodhi rimwe chete, reflow profile inofanira kugadziriswa kuti ikwane ma thermal mass makuru emuviri we2.54mm pasina kupisa zvakanyanya ma 1.27mm pins akapfava. Tinokurudzira kusarudza mutengesi we pin header anogona kupa nhungamiro yakadzama ye thermal profile zvichibva pa pin mass chaiyo uye plating yezvikamu zvakarairwa, izvo timu yedu yeinjiniya inowanzopa kune vadyidzani ve assembly-house.
Chekupedzisira, funga nezvematanho ekubvisa mapaneri uye ekubata. Ma connector e 1.27mm ane pitch yakapfava anogona kukuvara zvakanyanya kubva pakukwenya kwebhodhi panguva yekubvisa mapaneri. Kana ma connector e 1.27mm akaiswa pedyo nemupendero webhodhi kana pamwe chete nematabhu akatsemuka, zvimwe zvigadziriso zvekutsigira kana kugadzirisa kudzika kweV-score zvingadikanwa. Tinopa zano vatengi vedu kuti vatiudze marongerwo avo epaneli pakutanga kwekugadzira kuitira kuti tigone kuratidza nzvimbo dzinogona kuva nenjodzi uye kupa mazano ekugadzirisa nzvimbo dzeconnector tisati tatanga kushandisa maturusi.
Sarudzo dzeZvinhu uye Kuisa Mapuranga: Tin, Goridhe, uye Kuisa Mapuranga Zvakasarudzwa
Kusarudzwa kwezvinhu zvekuputira mapini zvine chekuita nemutengo, kugona kusundidzira, kuramba kubatwa, uye hupenyu hwekufamba kwemota. Kune maapplication emagetsi evatengi, tinopa magadzirirwo matatu epurasitiki, uye kunzwisisa nguva yekusarudza imwe neimwe kunogona kuchengetedza mari yakawanda yekutenga pasina kukanganisa kunaka kwechigadzirwa.
Kuisa tin plating ndiyo sarudzo inodhura zvakanyanya uye ndiyo sarudzo yekutanga yezvigadzirwa zvevatengi zvinodhura zvakanyanya. Ma pin headers edu akajairwa anoshandisa matte-tin finish ine ukobvu hwema micrometer matatu kusvika mashanu pamusoro pe nickel barrier layer. Matte tin inofarirwa pane bright tin ye reflow soldering nekuti inogadzira intermetallic bonds yakavimbika uye inodzivirira tin-whisker formation. Kune ma interfaces ane ma mating cycles asingasviki makumi mashanu mukati mehupenyu hwechigadzirwa - iyo inofukidza ma debug headers mazhinji, programming interfaces, uye internal board-to-board connections - tin plating yakakwana uye inomiririra kukosha kwakanyanya.
Kuisa goridhe pamusoro penickel kunotsanangurwa kana zvichidikanwa kuvimbika kwakanyanya kana kutsungirira kukuru kwekufamba kwemuchina. Tinoisa goridhe re0.76 kusvika 1.27 micrometers (30 kusvika 50 micro-inches) pamusoro penickel barrier ye1.27 kusvika 2.54 micrometers. Matinji akaputirwa negoridhe anochengetedza kugadzikana kwekubata kuburikidza ne500 kana kupfuura mating cycles uye anodzivirira oxidation uye ngura munzvimbo dzine hunyoro. Izvi zvinoita kuti goridhe riise sarudzo yakajairika yekubatanidza kunze, test-and-measurement interfaces, uye chero application apo connector inogona kugara isina kubatana kwenguva yakareba isati yashandiswa.
Kuisa mapurasitiki akasarudzwa kunomiririra nzvimbo yepakati yakavandudzwa nemutengo. Mukuita uku, nzvimbo yekubata mapini inowana goridhe rekupedzisa ukuwo muswe wesolder uchiramba uine tin finish. Maitiro aya anotarisa mari yekuisa mapurasitiki painonyanya kukosha - pakubatanidza - ukuwo mitengo yekuisa mapurasitiki yakaderera. Tinoona kuisa mapurasitiki akasarudzwa zvakanyanya mumagetsi emagetsi epakati, uko tarisiro yekuvimbika kwechigadzirwa iri kuwedzera asi kumanikidzwa kwemutengo wezvinhu kunoramba kwakanyanya. Maitiro edu ese ekuisa mapurasitiki anoenderana nezvinodiwa zvehukuru uye mashandiro akatsanangurwa mu IEC 60603-2, kuve nechokwadi chekuti mashandiro anowirirana nemasystem ekubatanidza akajairwa pasi rese.
Kudzora Hunhu: Kubatana, Simba Rekuchengetedza Pini, uye Kugona Kutengesa
Kudzora hunhu mukugadzira pin header hakusi sarudzo - ndiyo hwaro hunoenderana nehuwandu hwegoho re assembly-house uye kuvimbika kwechigadzirwa chekupedzisira. Isu tinochengetedza nzira yekuongorora ine matanho akawanda inovhara zvese zvakakosha kubva pakubvumidzwa kwezvinhu zvakabikwa kusvika pakurongedza kwekupedzisira. Kune vatengesi vePCB assembly vanoongorora pin header, zviyero zvitatu zvakakosha zvehunhu zvekuongorora ndezve coplanarity, pin retention force, uye solderability.
Coplanarity inoreva mwero wekuti mapini ese ari muconnector ari mudenderedzwa rimwe chete. Pakuisa otomatiki SMT, coplanarity inofanira kudzorwa mukati me 0.10mm ye 2.54mm pitch headers uye mukati me 0.08mm ye 1.27mm pitch headers. Kana coplanarity ikadarika izvi, mamwe mapini anogona kusabatana nemazvo ne solder paste panguva yekuisa, zvichikonzera majoini e solder akavhurika kana anotonhora mushure mekudzokazve. Tinoyera coplanarity pane yega yega production lot tichishandisa optical flat comparators uye tinopa data sheets nekutumira kwega kwega.
Simba rekuchengetedza mapini — simba rinodiwa kuti pini ibudiswe kubva mudura rekudzivirira — chiyero chesimba remuchina. Pamapini e2.54mm, tinotsanangura simba rekuchengetedza mapini re0.5 kgf; pamapini e1.27mm, simba rekuchengetedza mapini i0.3 kgf, zvichiratidza nzvimbo diki yekupindirana. Mapini anokundikana pakuedza simba rekuchengetedza mapini anogona kubviswa panguva yekubata bhodhi, kuyedzwa otomatiki, kana kubasa remumunda. Nzvimbo yega yega yatinotumira inoedzwa kuratidza kuti inoenderana nezvinodiwa izvi.
Kugona kutengeswa kunoongororwa zvichienderana ne IPC-A-610 zvinodiwa kuti zvigamuchirwe. Tinoita bvunzo dzekunyorovesa uye kuongorora kunyura uye kutarisa pamapini emuenzaniso kubva pakugadzirwa kwega kwega kuti tione kuti plating inopa kufukidza kwakasimba, kusina chinhu. Kune mapini akaiswa mutin, tinoitawo bvunzo dzekukwegura nekukurumidza pakupisa kwakanyanya uye hunyoro kuti tisimbise kugona kusungirirwa kwenguva refu. Rudzi rwedu rwese rwe zvigadzirwa zvemusoro wepin inogadzirwa zvinoenderana nezvinodiwa izvi, uye tinogamuchira ongororo dzevamwe dzemaitiro edu emhando yepamusoro chero nguva.
Kufunga Nezvekutenga Kwakawanda Kwedzimba Dzekuungana dzePCB
Kutenga ma pin headers akawanda ekugadzira magetsi emagetsi evatengi kunosanganisira zvinopfuura kungoenzanisa mitengo yemayuniti chete. Tinoshanda pamwe chete nechikwata chekutenga zvinhu kuti tiwedzere mutengo wezvinhu zvakabiwa, uye zvinhu zvakawanda zvinosiyanisa chain ye pin headers inodzorwa zvakanaka kubva kune inochinja mashandiro.
Chinhu chekutanga kufunga nezvacho ndechekubatanidza zvinhu. Kuwana ma pin headers e2.54mm ne1.27mm kubva kumugadziri mumwe chete — kusiyana nekuparadzanisa vhoriyamu pakati pevatengesi vakawanda — kunopa mabhenefiti anooneka: magwaro emhando yakabatana, nzvimbo imwe chete yekutaurirana yekuchinja mainjiniya, kutumira zvinhu pamwe chete kunoderedza mitengo yekutakura zvinhu, uye mukana wakasimba wekutaurirana pamitengo yevhoriyamu. Tinopa marongero emitengo akarongwa anobhadhara maodha akabatanidzwa pakati pemhuri dzepitch uye ma connector configurations.
Kutarisira nguva yekushanda ndicho chinhu chechipiri chakakosha. Magadzirirwo akajairwa e2.54mm anotumirwa kubva mudura redu reNingbo mukati memazuva matatu kusvika mashanu ekushanda. Kuverengwa kwemapini akagadzirwa, plating chaiyo, kana 1.27mm mhando dzinoda mazuva gumi nemashanu kusvika makumi maviri nemashanu ekushanda zvichienderana nehuwandu. Tinochengetedza zvibvumirano zvekuchengetedza nevatengi vedu venguva dzose, tichichengeta zvinhu zvekuchengetedza zvinogona kumiswa kana nguva pfupi yakwana kuti zvivhare kuwedzera kwekugadzirwa pasina mari yezvigadzirwa zvakawandisa panzvimbo yekuunganidza.
Magwaro uye kutevedzera mitemo hazvifanirwe kuregeredzwa. Kutumirwa kwese kwatinotumira kunosanganisira zvitupa zvekutevedzera mitemo, mishumo yekuongorora mativi, mhinduro dzebvunzo dzekukora kweplate, uye zviziviso zveRoHS/REACH. Kune dzimba dzekuunganidza dzinoshandira misika inotungamirwa nemutemo senge zvishandiso zvekurapa kana zvigadzirwa zvevatengi zviri pedyo nemotokari, tinogona kupa zviziviso zvezvinhu mufomati yeIPC-1752 uye kutsigira kuongororwa kwemafekitori pasi pezvirongwa zvehunyanzvi zvinoenderana nevatengi. Kugadzira hwaro hwemagwaro aya pakutanga kwehukama hwemutengesi kunobvisa kunonoka panguva yekuongorora kuri kuuya uye kukurumidzisa nguva yekugadzira magadzirirwo matsva ebhodhi.
Mibvunzo Inowanzo bvunzwa
Ndeupi musiyano uripo pakati pema pin headers e 2.54mm ne 1.27mm?
Musiyano mukuru i pitch — daro riri pakati nepakati pakati pemapini ari pedyo. Pini ye2.54mm inoshandisa pitch ye0.100-inch yagara iripo kubvira panguva yekugadzira PCB, ichipa simba rakasimba remakanika uye nyore kushandisa nemaoko. Pini ye1.27mm ine 1.27mm inopatsanura nzvimbo iyoyo, zvichiita kuti ive nekanenge ka4 kapini density panzvimbo imwe neimwe. 1.27mm yakanakira kuendesa masaini nekukurumidza, macompact consumer electronics, uye magadzirirwo apo board real estate iri pamutengo wepamusoro. Mhando dzese dziri mbiri dziripo mu straight, right-angle, uye SMD configurations kubva kuNBGJGE.
Ndingashandisa here ma pin headers e1.27mm senzira yekutsiva zvakananga ma headers e2.54mm pamagadzirirwo ePCB aripo?
Kwete, 1.27mm pin headers haisi nzira yekutsiva 2.54mm headers. Kusiyana kwepitch zvinoreva kuti tsoka dzePCB, maburi patterns, uye routing traces zvese zvinofanirwa kugadziriswa patsva. Kuedza kutsiva imwe panzvimbo peimwe kuchaita kuti pasave nekurongeka uye kutadza kuunganidza. Zvisinei, kana uri kugadzira bhodhi idzva kana kuronga revision, kushandura nzira dzesignal dzakakosha kuenda ku1.27mm ukuwo simba ne programming headers zvichiramba zviri pa2.54mm inzira yakasimbiswa inoshandiswa nedzimba dzakawanda dze assembly kuti dzienzanise huwandu nekugadzirwa.
Ndezvipi zvingasarudzwa zvema plating zviripo zve pin headers zvinoshandiswa mumagetsi evatengi?
Kune mamaboard emagetsi evatengi, tinopa sarudzo nhatu dzekubatanidza: tin plating (inodhura, yakakodzera kushandiswa kwakawanda kunodhura zvishoma nezvishoma nemitambo yekubatanidza yakajairika iri pasi pe50), gold plating pamusoro penickel barrier (0.76 kusvika 1.27 micrometers gold thickness, yakayerwa kune 500+ mating cycles, inofarirwa kune high-trust uye high-frequency applications), uye selective plating uko nzvimbo yekubatana inogamuchira goridhi ukuwo solder tail ichiwana tin. Selective plating inogadzirisa mutengo uchienzaniswa nekushanda. Sarudzo dzese dzinoenderana neIEC 60603-2 dimensional uye electrical specifications.
Dzimba dzePCB dzinoongorora sei hunhu hwemusoro wepini usati waiswa?
Dzimba dzekugadzira dzinowanzo simbisa zvinhu zvitatu zvakakosha zvemhando yepamusoro: coplanarity (mapini ese anofanira kugara mukati me 0.10mm kubva panzvimbo yekunongedzera kuti aiswe otomatiki), simba rekuchengetedza mapini (pini yega yega inofanira kutsungirira simba rekubvisa, kazhinji 0.5 kgf ye 2.54mm uye 0.3 kgf ye 1.27mm, kuve nechokwadi chekuti michina inoshanda zvakanaka panguva yekubata), uye kuyedzwa kwekugona kusundirwa zvinoenderana neIPC-A-610 standards. Tinopa data rekuongorora usati watumira uye zvitupa zvekuenderana nehurongwa hwese hwehuwandu, kusanganisira mishumo yehukuru uye kuyerwa kweukobvu hweplating.
Ndeipi nguva yakajairika yekutumira zvinhu uye huwandu hushoma hweodha yekutumira zvinhu zvepa pin header?
Ma pin headers akajairika e2.54mm ari mumagadzirirwo akafanana (1x40, 2x20, 2x25) anowanikwa kubva muzvitoro nenguva dzekutanga dzemazuva matatu kusvika mashanu ebhizinesi. Kuverengwa kwema pin akagadzirwa nemaoko, ma plating asiri e standard, kana 1.27mm high-density variants zvinowanzoda mazuva gumi nemashanu kusvika makumi maviri nemashanu ebhizinesi zvichienderana nehuwandu uye zvakatsanangurwa. Huwandu hwedu hushoma hweodha hunotangira pa 1,000 zvidimbu zvezvinhu zvakajairwa uye 5,000 zvidimbu zvemagadzirirwo akagadzirwa nemaoko. Tinochengetedza stock yekuchengetedza yevatengi vanodzoka uye tinopa mapurogiramu ekutumira akarongwa edzimba dzekuunganidza nezvinodiwa zvekugadzira zviri kuenderera mberi.
Munopa rutsigiro rwehunyanzvi here pakugadzira footprint yePCB uye kuronga kwedual-pitch?
Ehe, tinopa rutsigiro rwakakwana rwehunyanzvi kune mainjiniya ePCB layout. Izvi zvinosanganisira mifananidzo inokurudzirwa yetsoka muDXF neGerber formats kune ese ma pin header variants, 3D STEP models yekuongorora clearance yemakanika, uye manotsi ekushandisa anosanganisira maitiro akanakisa ekugadzira dual-pitch board. Chikwata chedu cheinjiniya chinogona zvakare kuongorora mafaira ako ekugadzira uye kukurudzira magadzirirwo akanakisa epin header zvichienderana nemiganhu yako chaiyo yeassembly, reflow profile, uye zvinodiwa zve end-product. Tibate kuburikidza newebhusaiti yedu kuti ukumbire magwaro ekutsigira dhizaini.