Chikamu 1 Yakajairika IDENTIFICATION nzira dzeSMT polar zvikamu

Kunyanya kutarisisa kunofanirwa kubhadharwa kune polarity zvinhu mukati mePCBA maitiro, sezvo zvikanganiso zvechikamu zvinotungamira zvinogona kukonzera tsaona yebhetch uye kutadza kwePCBA board yese.Naizvozvo, zvakakosha zvakanyanya kune mainjiniya nevashandi vekugadzira kuti vanzwisise SMT polarity zvinhu.

I. Tsanangudzo ye polarity
Polarity inoreva kuti matanda akanaka uye asina kunaka kana mapini ekutanga ezvikamu ari munzira imwe chete neaya ePCB (yakadhindwa redunhu bhodhi).Kana iyo nzira yezvikamu uye PCB isingaenderani, inonzi yakaipa reverse.

II.Polarity identification nzira
1. Resistor yemhando yechip haina polarity

2. Capacitor (Capacitor)

2.1 Ceramic capacitors haisi-polar

2.2 Tantalum capacitors ari polar.PCB bhodhi uye mudziyo wakanaka pole labeling :1) Ribhoni kunyora;2) Maka “+”;3) Bevel kumaka.

2.3 Aluminium electrolytic capacitor ine polarity.Chikamu kunyora: bhendi remavara rinomiririra zvakaipa;PCB yekumaka: Ribhoni kana "+" inomiririra danda rakanaka.

3. Inductor

3.1 Iko hakuna polarity inodiwa kune maviri welding end mapakeji senge chip coil.

3.2 Multi-pin inductors ane polarity zvinodiwa.Kutara chikamu: dot/” 1 “inomirira polarity point;Maka paPCB: Dot/denderedzwa/” * “inoratidza polarity.

4. Chiedza Emitting Diode

4.1 THE SMT table sticker LED ine polarity.Chikamu chakaipa mucherechedzo: girini haina kunaka;PCB negative marker :1) vertical bar, 2) ribhoni, 3) sirika sikirini inopinza Engi;4) Kudhinda skrini "kunosiyana" mumiriri webhokisi.

5. Diode (9W)
5.1 Iyo diode ine SMT tafura paste ine polarity.Part negative marker :1) ribhoni, 2) groove, 3) color marker (vitreous);PCB yemazuva ano imba :1) yakatwasuka bar, 2) ribhoni, 3) screen printing horn, 4) “Modernizing” bhokisi.

NeoDen inopa yakazara SMT mutsetse mhinduro, kusanganisira SMT reflow oven, wave soldering muchina, pick nekuisa muchina, solder paste printer, Reflow oven, PCB loader, PCB unloader, chip mounter, SMT AOI muchina, SMT SPI muchina, SMT X- Ray muchina, SMT mutsara mutsara mudziyo, PCB yekugadzira Equipment SMT spare parts, etc chero mhando dzeSMT michina yaungade, ndapota taura nesu kuti uwane rumwe ruzivo:

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