Icandelo 1 Iindlela zokuchongwa eziqhelekileyo zamacandelo e-SMT amhlophe

Ingqwalasela ekhethekileyo kufuneka ihlawulwe kwizinto ze-polarity kuyo yonke inkqubo ye-PCBA, njengoko iimpazamo zecandelo lolwalathiso zinokukhokelela kwiingozi zebhetshi kunye nokusilela kwebhodi yonke yePCBA.Ke ngoko, kubaluleke kakhulu kubunjineli kunye nabasebenzi bemveliso ukuba baqonde izinto ze-SMT polarity.

I. Inkcazo yepolarity
I-Polarity ibhekisa kwinto yokuba iipali ezilungileyo nezingalunganga okanye izikhonkwane zokuqala zamacandelo zikwicala elinye nezo zePCB(ibhodi yesekethe eprintiweyo).Ukuba ulwalathiso lwamacandelo kunye ne-PCB aluhambelani, kubizwa ngokuba yi-reverse embi.

II.Indlela yokuchonga i-polarity
1. I-Resistor yohlobo lwe-chip ayinayo i-polarity

2. I-Capacitor (I-Capacitor)

2.1 Ii-Ceramic capacitors azikho-polar

2.2 Ii-Tantalum capacitors zi-polar.Ibhodi yePCB kunye nesixhobo sokuleyibhelishwa kwepali evumayo :1) Iribhoni yokubhala;2) Phawula “+”;3) Ukumakishwa kweBevel.

2.3 I-Aluminiyam i-electrolytic capacitor ine-polarity.Inxalenye yokuleyibhela: ibhendi yombala imele embi;Ukumakishwa kwePCB: Iribhoni okanye “+” imele ipali evumayo.

3. Inductor

3.1 Akukho mfuneko ye-polarity yeepakethe ezimbini ze-welding end ezifana ne-chip coil.

3.2 Ii-Multi-pin inductors zineemfuno ze-polarity.Inxalenye yokumakisha: ichaphaza/” 1 “imele indawo yepolarity;Phawula kwi-PCB: Ichaphaza/isangqa/” * “ibonisa i-polarity.

4. I-Diode yokuKhanya

4.1 Isincamathelisi setafile ye-SMT i-LED inobumbano.Ingxenye yesiphawuli esinegethivu: eluhlaza luhlaza;I-PCB i-negative marker :1) ibha ethe nkqo, 2) iribhoni, 3) i-Silk screen ebukhali iAngile;I-4) Ukuprintwa kwesikrini "kuhlukileyo" kummeli webhokisi.

5. I-Diode (9W)
5.1 I-diode ene-SMT table paste ine-polarity.Ingxenye yesiphawuli esingalunganga :1) iribhoni, 2) igroove, 3) isiphawuli sombala (vitreous);Igumbi lePCB elenziwa langoku :1) ibha ethe nkqo, 2) iribhoni, 3) uphondo loshicilelo lwesikrini, 4) ibhokisi ethi “Modernizing”.

I-NeoDen ibonelela ngezisombululo zomgca wendibano ye-SMT epheleleyo, kubandakanywa i-oven yokuqukuqela kwakhona kwe-SMT, umatshini wokuthengisa amaza, umatshini wokukhetha kunye nendawo, umshicileli we-solder paste, i-Oven yokuReflow, isilayishi se-PCB, isikhupheli se-PCB, i-chip mounter, umatshini we-SMT AOI, umatshini we-SMT SPI, i-SMT X- Umatshini we-Ray, izixhobo ze-SMT zokudibanisa, imveliso ye-PCB Izixhobo ze-SMT ezisetyenzisiweyo, njl.

IHangzhou NeoDen Technology Co., Ltd

Iwebhu:www.smtneoden.com

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