Takardar Bayani na Fasaha na SMD LED 0201 Mai Launin Raɗaɗi AlInGaP - Girman 1.6x0.8x0.6mm - Ƙarfin Wutar Lantarki 1.8-2.4V - Ƙarfi 72mW - Takardar Fasaha ta Hausa

1. Bayanin Samfur

Wannan takarda ta ba da cikakken bayani game da ƙayyadaddun bayanai na ƙaramin Na'urar Haske mai Haɓakawa (LED) mai haɗawa ta saman (SMD). An ƙera kayan a cikin ƙaramin tsari na 0201, wanda ya sa ya dace sosai don aikace-aikacen da ke da ƙarancin sarari akan allunan da'irar bugu (PCBs). Babban aikinsa shine zama mai nuna alama ta gani, hasken baya, ko mai haskakawa a cikin yawancin kayan lantarki na zamani.

1.1 Fa'idodi na Asali da Kasuwar Da Ake Nufi

LED yana ba da fa'idodi masu mahimmanci ga masana'antar sarrafa kai da ƙirar da ke da yawan ƙima. Ya dace sosai da kayan aikin ɗauka da sanyawa ta atomatik da kuma tsarin haɗa ta hanyar reflow na infrared (IR) na yau da kullun, yana sauƙaƙe samarwa mai yawa. Ana samar da fakitin akan tef ɗin da'irar masana'antu mai girman 12mm wanda aka ɗora akan reels na inci 7. Manyan kasuwannin da ake nufi sun haɗa da kayan aikin sadarwa (misali, wayoyin mara igiya da wayoyin hannu), na'urorin lissafi masu ɗaukuwa (kwamfutocin tebur), tsarin hanyoyin sadarwa, kayan amfani na gida, da aikace-aikacen alamar cikin gida inda ake buƙatar mai nuna alama mai ƙarancin girma mai aminci.

2. Ma'auni na Fasaha: Cikakken Fassarar Manufa

Wannan sashe yana ba da cikakken bincike game da ƙayyadaddun bayanai na lantarki, na gani, da na muhalli na LED.

2.1 Matsakaicin Matsakaicin Matsakaici

Kada a yi amfani da na'urar fiye da waɗannan iyakoki don hana lalacewa na dindindin. Manyan ƙididdiga sun haɗa da matsakaicin ɓarnawar wutar lantarki na 72mW, halin yanzu na gaba na DC na 30mA, da matsakaicin halin yanzu na gaba na 80mA (a ƙarƙashin yanayin bugun jini tare da aikin 1/10 da faɗin bugun 0.1ms). An ƙayyade kewayon zafin jiki daga -40°C zuwa +85°C, tare da kewayon zafin ajiya daga -40°C zuwa +100°C, yana tabbatar da amincin a cikin mawuyacin yanayi.

2.2 Halayen Lantarki da Na Gani

An auna a daidaitaccen yanayin gwaji na zafin yanayi na 25°C da halin yanzu na gaba (I_F) na 20mA, na'urar tana nuna irin wannan aikin na yau da kullun. Ƙarfin haske (I_V) ya bambanta daga mafi ƙarancin 140.0 mcd zuwa matsakaicin 450.0 mcd, tare da ainihin ƙimar da aka ƙaddara ta hanyar matakin rarrabawa. Yana da faɗin kusurwar kallo (2θ_1/2) na digiri 110, yana ba da faɗin gani. Hasken da aka fitar yana cikin bakan launin raɗaɗi, tare da matsakaicin tsayin haske mai fitarwa (λ_p) na 591 nm da kewayon tsayin haske mai rinjaye (λ_d) wanda aka ƙayyade ta hanyar rarrabawar tsayin haske. Ƙarfin wutar lantarki na gaba (V_F) yakan faɗo tsakanin 1.8V zuwa 2.4V a halin yanzu na gwaji.

3. Bayanin Tsarin Rarrabawa

Don tabbatar da daidaito a cikin samarwa da ƙira, ana rarraba LED zuwa kwandon asusun ma'auni masu mahimmanci. Wannan yana ba masu ƙira damar zaɓar abubuwan da suka dace da takamaiman da'irar da buƙatun haske.

3.1 Matsayin Ƙarfin Wutar Lantarki na Gaba (V_F)

Ana rarraba LED zuwa kwandon wutar lantarki guda uku: D2 (1.8V - 2.0V), D3 (2.0V - 2.2V), da D4 (2.2V - 2.4V). Kowane kwandon yana da iyakar ±0.10V. Zaɓin kwandon da ya dace yana taimakawa wajen ƙirar da'irori masu iyakance halin yanzu masu ƙarfi.

3.2 Matsayin Ƙarfin Hasken (I_V)

An rarraba haske zuwa kwandon ƙarfi guda biyar: R2 (140.0-180.0 mcd), S1 (180.0-224.0 mcd), S2 (224.0-280.0 mcd), T1 (280.0-355.0 mcd), da T2 (355.0-450.0 mcd). Iyaka akan kowane kwandon ƙarfi shine ±11%. Wannan rarrabawar yana da mahimmanci ga aikace-aikacen da ke buƙatar daidaiton haske a cikin masu nuna alama da yawa.

3.3 Matsayin Tsayin Haske Mai Rinjaye (WD)

Ana sarrafa launin hasken raɗaɗi ta hanyar rarrabawar tsayin haske. Kwandon guda huɗu sune H (584.5-587.0 nm), J (587.0-589.5 nm), K (589.5-592.0 nm), da L (592.0-594.5 nm), kowannensu yana da iyakar ±1 nm. Wannan yana tabbatar da daidaiton launi a cikin ƙayyadadden kewayon.

4. Bincike na Lanƙwan Aiki

Yayin da aka ambaci takamaiman lanƙwan lanƙwan a cikin takardar bayani, yawanci suna nuna alaƙar tsakanin halin yanzu na gaba da ƙarfin wutar lantarki na gaba (lanƙwan I-V), bambancin ƙarfin haske tare da halin yanzu na gaba, da tasirin zafin yanayi akan fitarwar haske. Waɗannan lanƙwan suna da mahimmanci don fahimtar halayen na'urar a ƙarƙashin yanayin aiki mara daidaituwa da kuma inganta da'irar tuƙi don inganci da tsawon rai.

5. Bayanin Injiniya da Fakitin

5.1 Girman Fakitin

LED yana cikin fakitin masana'antu na 0201. Manyan girmansu sun kai kusan 1.6mm tsawon, 0.8mm faɗi, da 0.6mm tsayi. Duk iyakokin girma yawanci ±0.1mm ne sai dai idan an ƙayyade su. Ruwan tabarau yana da tsabta, kuma launin da aka fitar daga guntu na AlInGaP shine raɗaɗi.

5.2 Pad ɗin Haɗa PCB da Ake Ba da Shawara

An ba da ƙirar ƙirar ƙasa don tabbatar da ingantaccen haɗa da kwanciyar hankali na injiniya. Tsarin pad ɗin da ake ba da shawara yana la'akari da girman kayan kuma an inganta shi don hanyoyin haɗa ta hanyar reflow na infrared ko tururi, yana hana kabari kuma yana tabbatar da ingantaccen fillet na solder.

6. Jagororin Haɗa da Tari

6.1 Yanayin Haɗa ta Hanyar Reflow na IR

Don hanyoyin haɗa marasa gubar (Pb-free), ana ba da shawarar takamaiman bayanin reflow na IR wanda ya dace da J-STD-020B. Manyan ma'auni sun haɗa da zafin jiki kafin dumama tsakanin 150-200°C, lokacin dumama kafin dumama har zuwa dakika 120 matsakaici, matsakaicin zafin jiki bai wuce 260°C ba, da lokacin da ya wuce ruwa (TAL) kamar yadda aka ƙayyade ta hanyar man solder. Yakamata a iyakance jimlar lokacin haɗa a matsakaicin zafin jiki zuwa dakika 10 matsakaici, kuma kada a yi reflow fiye da sau biyu.

6.2 Yanayin Ajiya

Don hana sha ruwa (wanda zai iya haifar da "popcorning" yayin reflow), an ba da ƙaƙƙarfan jagororin ajiya. Yakamata a ajiye jakunkunan shinge na danshi da ba a buɗe ba a ≤30°C da ≤70% RH, tare da tsawon rayuwar shekara guda. Da zarar an buɗe, yakamata a ajiye abubuwan a ≤30°C da ≤60% RH. Ana ba da shawarar sosai a kammala reflow na IR cikin sa'o'i 168 (kwanaki 7) bayan buɗe jakar. Abubuwan da aka fallasa fiye da wannan lokacin suna buƙatar tsari na gasa (misali, 60°C na awanni 48) kafin haɗa.

6.3 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan haɗa, yakamata a yi amfani da takamaiman kaushi na barasa kamar ethyl alcohol ko isopropyl alcohol kawai. Yakamata a nutsar da LED a zafin jiki na yau da kullun na ƙasa da minti ɗaya. Masu tsaftacewa na sinadarai da ba a ƙayyade ba na iya lalata epoxy na fakitin.

7. Bayanin Marufi da Oda

7.1 Ƙayyadaddun Tef da Reel

Ana samar da abubuwan akan tef ɗin mai ɗaukar hoto mai faɗin 12mm, wanda aka nannade akan reels mai diamita inci 7 (178mm). Kowane reel yana ɗauke da guda 4000. Tef ɗin yana amfani da murfin saman don rufe aljihunan fanko. Marufi yana bin ƙa'idodin ANSI/EIA-481. Ƙaramin adadin oda na guda 500 na iya shafi ga sauran adadin.

8. Shawarwari na Aikace-aikace

8.1 Yanayin Aikace-aikace na Yau da Kullun

Wannan LED ya dace don nuna matsayi a cikin kayan lantarki na masu amfani (kunna/kashe wutar lantarki, cajin baturi), hasken baya don maɓallan panel na gaba ko alamomi, da kuma a matsayin masu haskakawa na sigina a cikin kayan aikin hanyar sadarwa da kayan amfani na gida. Ƙaramin girman sa ya sa ya dace sosai don na'urori na zamani, ƙananan na'urori.

8.2 Abubuwan da Ake La'akari da Ƙira

Dole ne masu ƙira su aiwatar da ingantaccen resistor mai iyakance halin yanzu a jere tare da LED. Yakamata a ƙididdige ƙimar resistor bisa ga ƙarfin wutar lantarki, ƙarfin wutar lantarki na gaba (V_F) daga zaɓaɓɓen kwandon, da halin yanzu na aiki da ake so (kada ya wuce 30mA DC). Don daidaiton haske a cikin jerin LED da yawa, zaɓin LED daga kwandon ƙarfin haske (I_V) yana da mahimmanci. Dole ne kuma a mai da hankali ga sarrafa zafin jiki na shimfidar PCB don guje wa wuce iyakokin zafin jiki.

9. Tambayoyin da Ake Yawan Yi (Bisa Ma'auni na Fasaha)

Q: Menene bambanci tsakanin tsayin haske mai kololuwa da tsayin haske mai rinjaye?

A: Tsayin haske mai kololuwa (λ_p) shine tsayin haske guda ɗaya wanda bakan fitarwa ya fi ƙarfi. Tsayin haske mai rinjaye (λ_d) an samo shi daga zanen launi na CIE kuma yana wakiltar launin hasken da aka gane; shine tsayin haske guda ɗaya wanda zai dace da launin LED. Ga LED masu launi ɗaya kamar wannan raɗaɗi, yawanci suna kusa sosai.

Q: Shin zan iya tuƙa wannan LED da tushen wutar lantarki kai tsaye?

A: A'a. LED na'urori ne masu tuƙa halin yanzu. Ƙarfin wutar lantarki na gaba yana da iyaka kuma yana bambanta da zafin jiki. Haɗawa kai tsaye zuwa tushen wutar lantarki zai haifar da kwararar halin yanzu mara sarrafawa, mai yiwuwa ya wuce matsakaicin matsakaici kuma ya lalata na'urar. Koyaushe yi amfani da resistor mai iyakance halin yanzu a jere ko direban halin yanzu mai tsayi.

Q: Me yasa yanayin danshin ajiya yake da mahimmanci haka?

A> Fakitin SMD na iya sha ruwa daga iska. A lokacin babban zafin jiki na haɗa ta hanyar reflow, wannan ruwan da aka kama zai iya yin tururi cikin sauri, yana haifar da matsa lamba a ciki wanda zai iya fashewar epoxy na fakitin ("popcorning" ko "delamination"). Bin jagororin ajiya da gasa yana hana wannan yanayin gazawa.

10. Gabatarwar Ka'idar Aiki

Wannan LED ya dogara ne akan kayan semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP). Lokacin da aka yi amfani da ƙarfin wutar lantarki na gaba a kan anode da cathode na LED, ana shigar da electrons da ramuka zuwa yankin aiki na semiconductor. Waɗannan masu ɗaukar caji suna sake haɗuwa, suna sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke cikin gawa na AlInGaP yana ƙayyade ƙarfin bandgap, wanda kai tsaye yayi daidai da tsayin haske (launi) na hasken da aka fitar—a wannan yanayin, a cikin bakan raɗaɗi (~590 nm). Ruwan tabarau mai tsabta na epoxy yana rufe guntun semiconductor, yana ba da kariya ta injiniya, kuma yana siffanta fitarwar haske.