Bayanin Fasaha na SMD LED LTST-C21TBKT - Shudi - 20mA - 3.8V - Takardar Fasaha ta Hausa

1. Bayanin Samfurin

Wannan takarda ta bayyana cikakkun ƙayyadaddun bayanai na na'urar hawa ta saman (SMD) Chip LED da aka tsara don aikace-aikacen hawa ta baya. Kayan aikin wani LED ne mai haske shudi wanda ke amfani da fasahar InGaN (Indium Gallium Nitride), an lulluɓe shi a cikin fakitin ruwa mai tsabta. An ƙera shi don dacewa da tsarin haɗawa ta atomatik, gami da kayan aikin ɗauka da sanyawa, kuma ya dace da daidaitattun haɗa guntayen ƙarfe ta infrared (IR) da tururi. Samfurin ya bi ka'idojin muhalli, yana bin ka'idodin RoHS kuma an rarraba shi azaman samfuri mai kore.

Babban aikace-aikacen wannan LED shine a cikin kayan aikin lantarki inda ajiye sarari da ingantaccen haɗawa suke da muhimmanci. Ƙirar sa ta hawa ta baya tana ba da damar ƙirar PCB da mafita masu haske. Ana samar da na'urar a cikin kaset ɗin 8mm na masana'antu akan reels masu diamita 7-inch, wanda ke sauƙaƙe samarwa mai yawa.

2. Madaidaicin Ƙimar Iyaka

Teburin da ke gaba yana lissafta iyakokin damuwa waɗanda sama da su lalacewar dindindin na iya faruwa ga na'urar. An ƙayyade waɗannan ƙimar a yanayin zafin muhalli (Ta) na 25°C.

• Rushewar Wutar Lantarki:76 mW
• Matsakaicin Halin Gaba:100 mA (a cikin zagayowar aiki 1/10, faɗin bugun jini 0.1ms)
• Ci gaba da DC Gaba Halin yanzu (IF):20 mA
• Ragewar Halin yanzu:Ragewa mai layi daga 25°C a ƙimar 0.25 mA/°C
• Ƙarfin lantarki na Baya (VR):5 V (Lura: Ba a yarda da ci gaba da aiki a ƙarfin lantarki na baya)
• Kewayon Zafin Aiki:-55°C zuwa +85°C
• Kewayon Zafin Ajiya:-55°C zuwa +85°C
• Jurewar Zafin Haɗa Guntayen Ƙarfe:
  • Haɗa Guntayen Ƙarfe ta Wave: 260°C na daƙiƙa 5 matsakaici.
  • Reflow na Infrared (IR): 260°C na daƙiƙa 5 matsakaici.
  • Reflow na Tururi: 215°C na mintuna 3 matsakaici.

Wuce waɗannan iyakoki, musamman ƙarfin lantarki na baya da ƙimar halin yanzu, na iya haifar da gazawar na'urar nan take ko a ɓoye. Lanƙwan ragewar halin yanzu na gaba yana da mahimmanci ga ƙira waɗanda ke aiki a matsanancin zafin muhalli don tabbatar da dogon lokacin aminci.

3. Halayen Lantarki & Gani

Ana auna madaidaicin sigogin aiki a Ta=25°C ƙarƙashin ƙayyadaddun yanayin gwaji. Waɗannan ƙimar suna bayyana yadda ake tsammanin LED zai yi aiki.

3.1 Sigogin Gani

• Ƙarfin Hasken (Iv):45.0 - 280.0 mcd (matsakaici - matsakaici) a IF = 20 mA. An auna tare da firikwensin / tacewa wanda ke kusa da lanƙwan amsawar ido na CIE photopic.
• Kusurwar Dubawa (2θ_1/2):Digiri 70 (na al'ada). An bayyana shi azaman cikakken kusurwar da ƙarfin ya rabi matsakaicin ƙarfin axial.
• Matsakaicin Tsawon Tsinkaya (λ_P):468 nm (na al'ada). Tsawon raƙuman ruwa inda rarraba ƙarfin gani ya fi girma.
• Matsakaicin Tsawon Raƙuman Ruwa (λ_d):465.0 - 475.0 nm a IF = 20 mA. Matsakaicin tsawon raƙuman ruwa ɗaya da idon ɗan adam ya fahimta wanda ke bayyana launi, wanda aka samo daga zanen launi na CIE.
• Rabin Faɗin Layin Gani (Δλ):25 nm (na al'ada). Faɗin gani da aka auna a rabin matsakaicin ƙarfin (FWHM).

3.2 Sigogin Lantarki

• Ƙarfin lantarki na Gaba (V_F):3.0 - 3.8 V (na al'ada - matsakaici) a IF = 20 mA.
• Halin yanzu na Baya (I_R):100 µA (matsakaici) a V_R= 5V.
• Ƙarfin Ƙarfin Lantarki (C):40 pF (na al'ada) a V_F=0V, f=1 MHz.

Kewayon ƙarfin lantarki na gaba yana da mahimmanci ga ƙirar da'irar tuƙi, musamman lokacin da aka haɗa LED da yawa a layi daya, don tabbatar da raba halin yanzu da daidaiton haske.

4. Tsarin Binning

Don sarrafa bambance-bambancen samarwa, ana rarraba LED zuwa kwandon shara bisa mahimman sigogin aiki. Wannan yana ba masu ƙira damar zaɓar abubuwan da suka dace da takamaiman buƙatun haske da daidaiton launi don aikace-aikacensu.

4.1 Binning Ƙarfin Hasken

An yi bin a IF = 20 mA. Jurewa a cikin kowane kwandon shara shine +/-15%.

• Lambar P:45.0 - 71.0 mcd
• Lambar Q:71.0 - 112.0 mcd
• Lambar R:112.0 - 180.0 mcd
• Lambar S:180.0 - 280.0 mcd

4.2 Binning Matsakaicin Tsawon Raƙuman Ruwa

An yi bin a IF = 20 mA. Jurewa ga kowane kwandon shara shine +/- 1 nm.

• Lambar AC:465.0 - 470.0 nm
• Lambar AD:470.0 - 475.0 nm

Zaɓin LED daga kwandon shara ɗaya ko kwandon shara na kusa yana da mahimmanci ga aikace-aikacen da ke buƙatar daidaiton launi da haske a cikin raka'a da yawa, kamar a cikin tsararrun hasken baya ko allunan nuna matsayi.

5. Jagororin Haɗa Guntayen Ƙarfe & Haɗawa

Daidaitaccen sarrafawa da haɗa guntayen ƙarfe suna da mahimmanci don hana lalacewa da tabbatar da aminci.

5.1 Bayanan Reflow Haɗa Guntayen Ƙarfe

Takardar bayanin ta ba da shawarar bayanan zafin jiki don duka tsarin haɗa guntayen ƙarfe na daidaitacce da maras gubar (Pb-free). Mahimman sigogi sun haɗa da:

• Yankin Pre-heat:Hanyar sannu a hankali don hana girgizar zafi.
• Yankin Jiƙa:Yana ba da damar daidaita zafin jiki a fadin PCB.
• Yankin Reflow:Matsakaicin zafin jiki bai kamata ya wuce 260°C ba, kuma lokacin sama da 240°C (don Pb-free) yakamata a sarrafa shi kamar yadda bayanin ya nuna.
• Yankin Sanyaya:An sarrafa gangarowa don ƙarfafa haɗin guntayen ƙarfe yadda ya kamata.

Don hanyoyin Pb-free, an bayyana a sarari cewa dole ne a yi amfani da manna SnAgCu.

5.2 Tsaftacewa

Masu tsaftacewa na sinadarai da ba a bayyana ba na iya lalata fakitin LED. Idan tsaftacewa ya zama dole bayan haɗa guntayen ƙarfe, ana ba da shawarar:

• Tsoma LED a cikin barasa na ethyl ko barasa na isopropyl a daidaitaccen zafin ɗaki.
• Iyakance lokacin tsoma zuwa ƙasa da minti ɗaya.
• Kauce wa tsaftacewa ta ultrasonic sai dai idan an tabbatar da shi musamman, saboda yana iya haifar da damuwa na injiniya.

5.3 Ajiya & Sarrafawa

• Ajiye a cikin muhallin da bai wuce 30°C da zafi na 70% ba.
• LED da aka cire daga ainihin fakitin shinge na danshi yakamata a haɗa su da reflow a cikin mako guda.
• Don ajiya mai tsawo a waje da ainihin fakitin, yi amfani da akwati mai rufi tare da bushewa ko nitrogen desiccator.
• Abubuwan da aka ajiye a waje da jakar fiye da mako guda suna buƙatar gasa a kusan 60°C na aƙalla awanni 24 kafin haɗawa don cire danshin da aka sha da hana "popcorning" yayin reflow.

6. Bayanin Injiniya & Marufi

6.1 Girman Fakitin & Polarity

An saka LED a cikin daidaitaccen fakitin EIA. Cikakken zanen injiniya (wanda aka nuna a cikin takardar bayanin) zai nuna mahimman girma ciki har da tsayi, faɗi, tsayi, da gano katifan cathode/anode. Siffar "hawa ta baya" yawanci tana nuna takamaiman shimfidar katifa ko shugaban ruwan tabarau da aka tsara don hawa a gefen gaba na PCB dangane da daidaitattun LED. An ba da shawarar shimfidar katifan haɗa guntayen ƙarfe don tabbatar da samuwar haɗin guntayen ƙarfe da daidaito na injiniya.

6.2 Ƙayyadaddun Kaset da Reel

Ana samar da kayan aikin a cikin kaset ɗin mai ɗaukar hoto mai faɗi 8mm akan reels masu diamita 7-inch (178mm).

• Guda a kowane Reel: 3000
• Matsakaicin Ƙimar Oda (MOQ):Guda 500 don sauran adadi.
• Kaset ɗin Murfin:Ana rufe aljihun abubuwan da ba kowa a ciki tare da kaset ɗin murfin sama.
• Abubuwan da suka ɓace:Ana ba da izinin mafi girman LED guda biyu a jere a kowane ƙayyadaddun reel.
• Marufin ya yi daidai da ƙa'idodin ANSI/EIA-481-1-A-1994 don sarrafawa da jigilar kaya.

7. Bayanan Aikace-aikace & Abubuwan da ake la'akari da ƙira

7.1 Ƙirar Da'irar Tuƙi

LED na'urori ne masu aiki da halin yanzu. Haskensu da farko aiki ne na halin yanzu na gaba (IF), ba ƙarfin lantarki ba.

• Da'irar da aka ba da shawarar (Samfurin A):Yakamata a sanya resistor mai iyakance halin yanzu a jere tare da kowane LED, ko da lokacin da aka haɗa LED da yawa a layi daya zuwa tushen ƙarfin lantarki. Wannan resistor (R_limit) ana ƙididdige shi ta amfani da Dokar Ohm: R_limit= (V_supply- V_F) / I_F. Wannan yana tabbatar da daidaitaccen halin yanzu ta kowace LED, yana rama bambance-bambancen halitta a cikin ƙarfin lantarki na gaba (V_F) daga na'ura zuwa na'ura, wanda ke haifar da daidaiton haske.
• Da'irar da ba a ba da shawarar ba (Samfurin B):Haɗa LED da yawa kai tsaye a layi daya ba tare da resistors na jere ɗaya ba ana hana shi. Ƙananan bambance-bambance a cikin halayen I-V na kowane LED na iya haifar da rashin daidaituwa mai mahimmanci a cikin halin yanzu, inda LED ɗaya zai iya ɗaukar halin yanzu fiye da sauran, wanda ke haifar da rashin daidaiton haske da yuwuwar matsanancin damuwa na na'urar mafi girman halin yanzu.

7.2 Kariya daga Zubar da Lantarki (ESD)

Wannan LED yana da saukin lalacewa daga zubar da lantarki. Dole ne a ɗauki matakan kariya yayin sarrafawa da haɗawa:

• Dole ne ma'aikata su sanya bel ɗin wuyan ƙasa ko safofin hannu masu hana tashin hankali.
• Dole ne duk tashoshin aiki, kayan aiki, da injina su kasance da ƙasa daidai.
• Yi amfani da ionizers don kawar da cajin tsaye wanda zai iya taruwa akan ruwan tabarau na filastik saboda gogayya yayin sarrafawa.
• Ajiye da jigilar LED a cikin kwantena masu ɗaukar lantarki ko masu hana tashin hankali.

7.3 Gudanar da Zafi

Duk da cewa rushewar wutar lantarki yana da ƙasa (76 mW matsakaici), ingantaccen sarrafa zafi har yanzu yana da mahimmanci don tsawon rai, musamman a matsanancin zafin muhalli ko manyan halayen tuƙi. Dole ne a yi la'akari da ƙayyadaddun ragewar 0.25 mA/°C sama da 25°C a cikin ƙira. Tabbatar da isasshen yanki na jan ƙarfe a kusa da katifan LED akan PCB yana taimakawa wajen watsar da zafi da kiyaye ƙananan zafin haɗin gwiwa, wanda ke adana fitarwar haske da tsawaita rayuwar aiki.

8. Bincike na Lanƙwan Ayyuka na Al'ada

Takardar bayanin tana nuni zuwa lanƙwan halaye na al'ada (misali, ƙarfin haske dangi vs. halin yanzu na gaba, ƙarfin lantarki na gaba vs. zafin jiki, rarraba gani). Duk da yake ba a ba da takamaiman zane-zane a cikin rubutun da aka bayar ba, abubuwan da suka shafi su ne daidaitattun:

• I_Vvs. I_FLanƙwan:Yana nuna cewa ƙarfin haske yana ƙaruwa tare da halin yanzu na gaba amma yana iya zama ƙasa da layi a manyan halayen yanzu saboda raguwar inganci da ƙarin zafi.
• V_Fvs. Lanƙwan Zafin Jiki:Yana nuna cewa ƙarfin lantarki na gaba yana da ƙimar zafin jiki mara kyau (yana raguwa yayin da zafin haɗin gwiwa ya ƙaru). Wannan wani muhimmin abu ne ga direbobi masu daidaitaccen halin yanzu.
• Lanƙwan Rarraba Gani:Yana kwatanta ƙunƙuntaccen band ɗin fitarwa wanda ke kewaye da matsakaicin tsawon raƙuman ruwa (468 nm), wanda shine halayen InGaN blue LEDs.

9. Aminci & Ikon Aikace-aikace

An yi amfani da na'urar don amfani da ita a cikin na'urorin lantarki na yau da kullun kamar na'urori masu sarrafa kansa na ofis, kayan aikin sadarwa, da kayan amfanin gida. Don aikace-aikacen da ke buƙatar aminci na musamman inda gazawar zai iya haifar da haɗarin rayuwa ko lafiya (misali, jirgin sama, na'urorin likita, tsarin aminci mai mahimmanci), dole ne a yi takamaiman tuntuba na fasaha tare da mai kera kayan aikin kafin ƙira. Ƙayyadaddun kewayon aiki da ajiya (-55°C zuwa +85°C) suna nuna ƙarfi wanda ya dace da yanayin kasuwanci da masana'antu da yawa.

10. Kwatancen Fasaha & Trends

Fa'idar Hawa ta Baya:Wannan ƙira yana ba da damar LED ɗin ya hau a gefen gaba na PCB daga mai kallo, tare da fitar da haske ta rami ko buɗaɗɗen allo. Wannan yana ba da damar ƙira mai sauƙi, ƙira mai lebur inda tushen haske ya ɓoye, yana ba da hasken da aka fitar kawai ba tare da abubuwan da ake iya gani ba. Ya bambanta da tsoffin LED na hawa na sama inda ake iya ganin fakitin a saman.

Fasahar InGaN:Amfani da kayan semiconductor na Indium Gallium Nitride shine daidaitacce don ingantaccen LED shudi (da kore). Yana ba da ingantaccen inganci da kwanciyar hankali. Juyin halitta a wannan fagen yana mai da hankali kan ƙara inganci (lumens kowace watt), inganta daidaiton launi (ƙarfafa binning), da haɓaka aminci ƙarƙashin yanayin aiki mai zafi da babban halin yanzu, galibi ana motsa shi ta buƙatun daga hasken gabaɗaya da aikace-aikacen mota.

11. Tambayoyin da ake yawan yi (FAQ)

Q1: Shin zan iya tuƙa wannan LED a 30 mA don ƙarin haske?

A1: A'a. Matsakaicin matsakaicin ci gaba da DC gaba halin yanzu shine 20 mA. Wuce wannan ƙimar zai rage tsawon rai kuma yana iya haifar da gazawar nan take. Don ƙarin haske, zaɓi LED bin tare da mafi girman ƙarfin haske ko wani samfurin LED wanda aka ƙididdige shi don mafi girman halin yanzu.

Q2: Menene bambanci tsakanin matsakaicin tsawon raƙuman ruwa da matsakaicin tsawon raƙuman ruwa?

A2: Matsakaicin tsawon raƙuman ruwa (λ_P) shine tsawon raƙuman ruwa na zahiri inda LED ke fitar da mafi yawan ƙarfin gani. Matsakaicin tsawon raƙuman ruwa (λ_d) ƙima ce da aka ƙididdige bisa fahimtar launi na ɗan adam (ginshiƙi na CIE) wanda ke bayyana launin da ake gani. Ga LED masu launi ɗaya kamar wannan shudi, yawanci suna kusa, amma λ_dshine sigar da ta dace don daidaita launi.

Q3: Me yasa resistor na jere ya zama dole ga kowane LED a layi daya?

A3: Saboda jurewar masana'antu, ƙarfin lantarki na gaba (V_F) na LED ya bambanta kaɗan. Ba tare da resistor na jere don iyakance halin yanzu ba, LED tare da ƙananan V_Fza su jawo halin yanzu da yawa a cikin tsari na layi daya, wanda ke haifar da rashin daidaiton haske da yuwuwar gazawar wuce gona da iri. Resistor yana aiki azaman sauƙi, ballast mai daidaitawa.

Q4: Ta yaya zan fassara lambobin bin lokacin yin oda?

A4: Dole ne ka ƙayyade duka Lambar Bin Ƙarfin (misali, "S" don mafi girman haske) da Lambar Bin Tsawon Raƙuman Ruwa (misali, "AC" don 465-470 nm). Cikakken lambar oda zai ƙayyade wani abu kamar LTST-C21TBKT-S-AC don samun na'urori daga waɗannan takamaiman kwandon shara, yana tabbatar da haske da daidaiton launi a cikin samarwar ku.