6. Integrated Circuit
6.1 ụdị nkwakọ ngwaahịa SOIC nwere polarity.Akara polarity:1) rịbọn, 2) akara, 3) notches na grooves, 4) bevel.
6.2 Ngwugwu nke ụdị SOP ma ọ bụ QFP nwere polarity.Polarity labeled: 1) notch/groove labeled, 2) Otu isi ihe dị iche (nha / ọdịdị) site na isi abụọ/atọ ndị ọzọ.
6.3 QFN ụdị encapsulation nwere polarity.Polarity gosiri :1) otu isi ihe dị iche na isi ihe abụọ ndị ọzọ (nha / ọdịdị), 2) egosiri hypotenuse, 3) akara ngosi ( mmanya / "+" akara / ntụpọ).
7. Ball Grid Array
7.1 Akụkụ polarity: notch / groove / dot / circle;Polarity nke bọọdụ PCB: okirikiri/ntụpọ/akwụkwọ ozi “1 ma ọ bụ A”/ akara bevel.Ebe polarity nke akụkụ ahụ kwekọrọ na ebe polarity na PCB.Usoro njirimara nguzogide SMT
N'ozuzu, e nwere 12 agba nke agba mgbanaka resistors: aja aja, red, oroma, odo, green, blue, purple, gray, white, black, gold and silver.N'ime ha, agba iri mbụ na-anọchi anya 1 ~ 9 (oji na-anọchi anya 0), na ọla edo na ọlaọcha na-anọchi anya ụdị njehie abụọ (gbakwunyere ma ọ bụ mwepu 5% na gbakwunyere ma ọ bụ mwepu 10%).
Agba abụọ mbụ na-anọchi anya ọnụọgụ dị ọcha.Dịka ọmụmaatụ, oroma na ojii na-anọchi anya nọmba 30 (na-ekwughị na nguzogide bụ 30 euro), na mgbanaka agba nke atọ na-anọchi anya ọnụọgụ efu.Dịka ọmụmaatụ, ọ bụrụ na mgbanaka agba nke atọ na-acha uhie uhie, ọ pụtara na nọmba 30 na-esote efu abụọ, na uru nkwụsị nke nkwụsị a bụ 30 00 euro (3k euro).
Mgbanaka agba ikpeazụ bụ ọla edo ma ọ bụ ọlaọcha.Dịka ọmụmaatụ, ọ bụrụ na mgbanaka agba ikpeazụ bụ ọlaọcha, nkwụsị nke nkwụsị ahụ ga-adị n'etiti 3000 ohms gbakwunyere ma ọ bụ mwepu 10% (ezigbo nkwụsi ike nke nguzogide ga-abụ uru ọ bụla doro anya n'ime oke a).
SMT capacitance polarity ikpe na njirimara ikike
A na-ekewa capacitor ka ọ bụrụ capacitor electrolytic na wafer capacitor.Ọdịdị nke electrolytic capacitor bụ cylinder, na elu cylinder ya ka akara ya na ikike ya, ọ nwekwara polarity (ogologo ụkwụ bụ ogwe dị mma, obere ụkwụ bụ ogwe adịghị mma).
N'aka nke ọzọ, wafer capacitance enweghị polarity.A na-eme ya ka ọ dị okirikiri ma jiri ọnụọgụ atọ akara, n'ime nke ọnụọgụ nke mbụ na nke abụọ na-anọchi anya uru ikike na ọnụọgụ nke atọ na-anọchi anya ọnụọgụ efu, dịka 233, nke na-anọchite anya uru ikike nke 23000PF ma ọ bụ 0.023 micromethod.
NeoDen na-enye ngwọta ahịrị mgbakọ SMT zuru ezu, gụnyere SMT reflow oven, igwe na-ere ọkụ, igwe na-eburu na ebe, ngwa nbipute tapawa, oven reflow, PCB loader, PCB unloader, mgbawa mgbawa, igwe SMT AOI, igwe SMT SPI, SMT X- Ray igwe, SMT mgbakọ ahịrị akụrụngwa, PCB mmepụta Equipment SMT akụkụ mapụtara, wdg ụdị ọ bụla SMT igwe ị nwere ike chọrọ, biko kpọtụrụ anyị maka ozi ndị ọzọ:
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Oge nzipu: Nov-06-2020