Ubume besixhobo se-PCB asiyonto engenangqondo, inemithetho ethile ekufuneka ilandelwe ngumntu wonke. Ukongeza kwiimfuno ngokubanzi, ezinye izixhobo ezizodwa zineemfuno ezahlukeneyo zokubekwa.

Iimfuneko zokubekwa kwezixhobo zestrimpa

1) Akufanelanga ukuba kungabikho nto ingaphezulu kwe-3mm 3mm ijikeleze i-curted / i-subred / icinyiwe / i-cuript / i-cuript / i-curing / i-cuript / i-curing / i-curing / i-curped / i-rimpred / i-Special / ye-Widing / i-Widing izixhobo ze-welsing ezijikeleze i-1.5mm; Umgama ukusuka kwelinye icala lesixhobo sokuqhekeza kwiziko le-pin hole yesixhobo se-crmim 25 akuyi kubakho nto phakathi koluhlu lwe-MM.

2) Akufanelanga ukuba kungabikho nto ngaphakathi kwe-1mm ejikeleze i-TOPE / yendoda, ethe ngqo / eyenziwe ngenkohliso / eqondile; when the back of the straight/male, straight/female crimping device needs to be installed with a sheath, no components shall be placed within 1mm from the edge of the sheath When the sheath is not installed, no components shall be placed within 2.5mm from the crimping hole.

3) Isokethi eliphilayo le-pluging esetyenziswe kumnxibelelanisi we-European, umphambili wenaliti ende i-6.5mm ye-6.5mm ye-6.5mm.

I-4) ipini ende ye-2mmfb yombane

Iimfuno zendawo yezixhobo ze-Thermal

1) Ngexesha lokubekwa kwesixhobo, gcina izixhobo ezibuthathaka ze-thermal (ezinje ngamandla e-elektrolytic, i-crystal oscillators, njl. Njl.) Ukude kakhulu kwizixhobo zobushushu obuphezulu kangangoko kunokwenzeka.

2) Isixhobo se-thermal kufuneka sisondele kwicandelo phantsi kovavanyo kwaye kude nendawo yobushushu obuphezulu, ukuze ingachaphazeli ezinye izinto zokufudumeza kwaye zibangela ukungasebenzi kakuhle.

3) Beka izinto ezihlanjululwe ubushushu kunye nezinto zobushushu kufutshane nendawo yokuphuma komoya okanye ngaphezulu, kodwa ukuba azinakho ukumelana nobushushu obuphakathi, kwaye zibekelwe ezinye izixhobo zokufudumeza kunye nezixhobo ezinobuthathaka kangangoko zinokubakho kwisikhundla sendlela.

Iimfuneko zokubeka kunye nezixhobo zePolar

I-1) Izixhobo ze-TOD nge-polacy okanye i-leaty inolwando olufanayo lwesakhiwo kwaye zilungelelaniswe kakuhle.
2) Indlela ye-SMC engafakwanga kwiBhodi kufuneka ihambelane njengoko kunokwenzeka; Izixhobo zohlobo olunye zilungelelaniswe ngokucocekileyo kwaye zintle.

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Iimfuneko zeNdawo zokuHanjiswa kweHole

I-1) ye-PCBs kunye ne-PCSONIRS engaphezulu kwe-300mm, izinto ezinzima akufuneki zibekwe embindini we-PCB kangangoko kunokwenzeka ukuba inciphise ifuthe lomthwalo wePCB ngexesha lenkqubo ethengiswayo kwiBhodi. Impembelelo yesixhobo esibekiweyo.

2) Ukwenzela ukuba kube lula ukufakelwa, ifowuni iyacetyiswa ukuba icwangciswe kufutshane necala lokusebenza lokufakwa.

3) Ubude kwicala lezixhobo ezinde (njengokhumbulo, njl njl) kuyacetyiswa ukuba ihambelane nendlela yokuhambisa.

4) Umgama phakathi komda we-chad ye-chad ye-Hid kunye ne-QFP, i-QFP, i-SOP, i-qubing, i-Bing kunye ne-BGASS enesitayile ≤ 0.65mm inkulu kune-20mm. Umgama ovela kwezinye izixhobo zeSMT ngu> 2mm.

5) Umgama phakathi komzimba wesixhobo sokungena kwi-Hoe-How-How-Howning isixhobo singaphezulu kwe-10mm.

6) umgama phakathi komda wepad off-How-How-How-How-How Stown isixhobo kunye necala lokudlulisela i-≥10mm; Umgama ukusuka kwicala elingasecaleni le-≥5mm.