Takardar Bayani na LED SMD LTST-S270KDKT - Guntun AllnGaP Ja - 20mA - 50mW - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

LTST-S270KDKT na'urar LED ce mai hawa a saman (SMD) wacce aka tsara don haɗa allon da'ira (PCB) ta atomatik. Tana da siffa ƙanƙanta wacce ta dace da aikace-aikacen da ke da ƙarancin sarari. Na'urar tana amfani da guntun semiconductor na Aluminum Indium Gallium Phosphide (AllnGaP) mai haske sosai don samar da hasken ja, wanda aka sanya a cikin fakitin ruwan tabarau mai tsabta. An haɗa wannan haɗin don aikace-aikacen da ke buƙatar ingantaccen aminci da dacewa da hanyoyin masana'antu na zamani.

1.1 Siffofi

• Ya bi ka'idojin RoHS (Ƙuntata Abubuwa masu haɗari).
• Tsarin guntu mai kallon gefe tare da igiyoyin da aka lulluɓe da tin don ingantaccen haɗaƙƙiyar solder.
• Yana amfani da fasahar guntu na AllnGaP mai haske sosai don ƙarfin haske mai ƙarfi.
• An tattara shi a cikin tef na milimita 8 akan reels masu diamita inci 7 don haɗawa ta atomatik ta ɗauka da sanyawa.
• Ya yi daidai da ƙa'idodin fakitin EIA (Ƙungiyar Masana'antu na Lantarki).
• Halayen tuƙi masu dacewa da IC.
• An tsara shi don dacewa da kayan aikin sanyawa ta atomatik.
• Ya dace da hanyoyin haɗa solder na infrared (IR) reflow.

1.2 Aikace-aikace

An yi niyya wannan LED ga ɗimbin kayan aikin lantarki inda ƙaramin girma, aminci, da ingantaccen haɗawa suke da mahimmanci. Yankunan aikace-aikace na yau da kullun sun haɗa da:

• Sadarwa:Alamomin matsayi a cikin wayoyin mara igiya, wayoyin hannu, da kayan aikin cibiyar sadarwa.
• Sarrafa Ofis & Kayan Lantarki na Masu Amfani:Hasken baya don maɓallan maɓalli da madannai a cikin kwamfutocin tebur da sauran na'urori masu ɗaukuwa.
• Kayan Aikin Gida & Masana'antu:Alamomin wutar lantarki, yanayi, ko matsayi.
• Nuni da Alama:Ƙananan nunin allo da hasken alama a cikin aikace-aikacen cikin gida.

2. Girman Fakitin da Bayanan Injiniya

Ana ba da LED a cikin daidaitaccen fakitin SMD. Launin ruwan tabarau yana da tsabtar ruwa, kuma launin hasken tushen ja ne daga guntun AllnGaP. Duk ƙayyadaddun girman girman suna \u00b10.1 mm sai dai idan an faɗi akasin haka. An ba da cikakkun zane-zane na injiniya don ɓangaren, fakitin PCB da aka ba da shawarar, da kuma fakitin tef-da-reel a cikin takardar tushe, waɗanda ke da mahimmanci don ƙirar shimfidar PCB da tsara tsarin haɗawa.

3. Ƙima da Halaye

3.1 Matsakaicin Ƙimar Ƙarfafawa

Waɗannan ƙimar suna ayyana iyakokin da za su iya haifar da lalacewa na dindindin ga na'urar. Duk ƙimar an ƙayyade su a yanayin zafin yanayi (Ta) na 25\u00b0C.

• Rushewar Wutar Lantarki (Pd):50 mW
• Matsakaicin Halin Gaba (I_F(PEAK)):40 mA (a cikin zagayowar aiki 1/10, faɗin bugun jini 0.1ms)
• Halayen Gaba na DC (I_F):20 mA
• Ƙarfin Baya (V_R):5 V
• Kewayon Zafin Aiki (T_opr):-30\u00b0C zuwa +85\u00b0C
• Kewayon Zafin Ajiya (T_stg):-40\u00b0C zuwa +85\u00b0C
• Yanayin Haɗa Solder na Infrared:Matsakaicin zafin jiki 260\u00b0C na iyakar daƙiƙa 10.

3.2 Halayen Lantarki da Na Gani

Waɗannan su ne madaidaicin sigogin aiki da aka auna a Ta=25\u00b0C da I_F=20 mA, sai dai idan an lura.

• Ƙarfin Hasken Hasken (I_V):4.5 - 45.0 mcd (millicandela). An auna shi da tacewa wanda ya kusanci lanƙwaran amsawar ido na CIE photopic.
• Kusurwar Dubawa (2\u03b8_1/2):Digiri 130. An ayyana shi azaman cikakken kusurwar da ƙarfinsa ya rabi ƙimar axial (a kan-axis).
• Matsakaicin Tsawon Tsawon Watsawa (\u03bb_P):650.0 nm (na yau da kullun).
• Matsakaicin Tsawon Tsawon (\u03bb_d):630.0 - 645.0 nm. Wannan tsawon tsawon raƙuman ruwa guda ɗaya yana ayyana launin da ake gani na LED akan zanen launi na CIE.
• Rabin Faɗin Layin Bakan (\u0394\u03bb):20 nm (na yau da kullun). Faɗin bakan watsawa a rabin matsakaicin ƙarfinsa.
• Ƙarfin Gaba (V_F):1.6 - 2.4 V.
• Halayen Baya (I_R):10 \u03bcA (matsakaici) a V_R=5V.

3.3 Taka Tsantsan Game da Zubar da Wutar Lantarki (ESD)

LEDs suna da hankali ga zubar da wutar lantarki da haɓakar ƙarfin lantarki. Dole ne a aiwatar da ingantattun matakan sarrafa ESD yayin sarrafawa da haɗawa. Wannan ya haɗa da amfani da igiyoyin wuyan hannu masu tushe, safar hannu masu hana tashin hankali, da tabbatar da cewa duk kayan aiki da wuraren aiki suna da tushe yadda ya kamata don hana ɓoyayyen lalacewar na'ura ko bala'i.

4. Tsarin Matsayi na Bin

Don tabbatar da daidaiton launi da haske a cikin samarwa, ana rarraba LEDs zuwa kwandon shara dangane da ƙarfin haske. LTST-S270KDKT yana amfani da waɗannan lambobin kwandon shara don fitowar ja, wanda aka auna a 20 mA.

• Bin J:4.5 - 7.1 mcd
• Bin K:7.1 - 11.2 mcd
• Bin L:11.2 - 18.0 mcd
• Bin M:18.0 - 28.0 mcd
• Bin N:28.0 - 45.0 mcd

Ana amfani da jurewar \u00b115% ga iyakokin kowane kwandon shara mai ƙarfin haske. Masu ƙira yakamata su ƙayyade lambar kwandon shara da ake buƙata don tabbatar da matakin haske da ake so a cikin aikace-aikacen ƙarshe.

5. Bincike na Lanƙwaran Aiki

Takardar tushe ta haɗa da madaidaicin lanƙwaran aiki waɗanda ke da mahimmanci don fahimtar halayen na'urar a ƙarƙashin yanayi daban-daban. Waɗannan lanƙwasa yawanci suna kwatanta alaƙar da ke tsakanin halin gaba da ƙarfin haske (I_Fvs. I_V), halin gaba da ƙarfin gaba (I_Fvs. V_F), da kuma tasirin yanayin zafin yanayi akan ƙarfin haske. Binciken waɗannan lanƙwasa yana ba masu ƙira damar inganta halin tuƙi don inganci da haske, fahimtar buƙatun ƙarfin lantarki don ƙirar wutar lantarki, da kuma lissafin raguwar zafin jiki a cikin yanayin zafi mai zafi.

6. Jagororin Haɗawa da Sarrafawa

6.1 Tsaftacewa

Masu tsaftacewa na sinadarai da ba a bayyana ba na iya lalata fakitin LED. Idan tsaftacewa ya zama dole bayan haɗa solder ko saboda gurɓata, yi amfani da barasa na ethyl ko isopropyl alcohol a zafin daki. Lokacin nutsarwa yakamata ya kasance ƙasa da minti ɗaya don hana yuwuwar cutar da ruwan tabarau na epoxy ko tsarin ciki.

6.2 Tsarin Haɗa Solder

Na'urar ta dace da hanyoyin haɗa solder na infrared (IR) reflow, wanda shine ma'auni don haɗa SMD. Ana ba da shawarar tsarin mara gubar (Pb-free).

• Dumama Kafin:150\u00b0C zuwa 200\u00b0C.
• Lokacin Dumama Kafin:Iyakar daƙiƙa 120.
• Matsakaicin Zafin Jiki:Iyakar 260\u00b0C.
• Lokacin Sama da Liquidus:Iyakar daƙiƙa 10 a matsakaicin zafin jiki. Kada a yi reflow fiye da sau biyu.

Don gyara da hannu tare da ƙarfe mai haɗa solder, zafin ƙarshen bai kamata ya wuce 300\u00b0C ba, kuma lokacin tuntuɓar yakamata a iyakance ga iyakar daƙiƙa 3 a kowane haɗin gwiwa. Yana da mahimmanci a bi bayanan reflow na ma'aunin JEDEC da shawarwarin masana'anta na manna solder don tabbatar da ingantattun haɗin gwiwar solder da hana lalacewar zafi ga LED.

6.3 Yanayin Ajiya

Ingantaccen ajiya yana da mahimmanci don kiyaye haɗaƙƙiyar solder da amincin na'urar.

• Fakitin da aka Rufa:Ajiye a \u2264 30\u00b0C da \u2264 90% Yanayin Zafi (RH). Tsawon rayuwar shiryayye shekara ɗaya ne lokacin da aka ajiye shi a cikin jakar hana danshi ta asali tare da desiccant.
• Fakitin da aka Buɗe:Don ɓangarorin da aka cire daga fakitin su na asali, yanayin ajiya bai kamata ya wuce 30\u00b0C ko 60% RH ba. Ana ba da shawarar kammala reflow na IR a cikin mako guda (Matsakaicin Hankali na Danshi 3, MSL 3). Don ajiya mai tsawo a waje da jakar asali, yi amfani da akwati mai rufewa tare da desiccant ko nitrogen desiccator. ɓangarorin da aka ajiye fiye da mako guda yakamata a gasa su a kusan 60\u00b0C na aƙalla sa'o'i 20 kafin haɗa solder don cire danshin da aka sha.

7. Bayanin Fakitin da Oda

Daidaitaccen fakitin don haɗawa mai yawa shine tef mai ɗaukar kaya mai faɗin milimita 8 wanda aka nannade akan reels masu diamita inci 7 (178mm). Kowane reel yana ɗauke da guda 4000. An rufe tef da tef ɗin saman. Fakitin yana bin ƙayyadaddun bayanai na ANSI/EIA-481. Don ƙananan adadi, akwai mafi ƙarancin fakitin guda 500. An tsara tef ɗin don ba da damar mafi yawan ɓangarori biyu da suka ɓace a jere (aljihuna fanko).

8. Abubuwan Tunani na Ƙirar Aikace-aikace

8.1 Ƙirar Da'irar Tuƙi

LEDs na'urori ne masu tuƙi na halin yanzu. Don tabbatar da daidaiton haske lokacin tuƙi da yawa LEDs, musamman a cikin tsararrun layi daya, yana da mahimmanci a yi amfani da resistor mai iyakance halin yanzu a cikin jerin tare da kowane LED. Wannan yana rama bambancin halitta a cikin ƙarfin gaba (V_F) daga na'ura ɗaya zuwa wata. Tuƙi LEDs kai tsaye daga tushen ƙarfin lantarki ba tare da daidaita halin yanzu ba na iya haifar da halin yanzu mai yawa, guduwar zafi, da rage tsawon rayuwa. Hanyar resistor na jerin sauƙi (Da'irar A a cikin takardar tushe) hanya ce mai aminci kuma ta gama gari.

8.2 Gudanar da Zafi

Duk da cewa fakitin yana da ƙanƙanta, dole ne a mutunta rushewar wutar lantarki (50 mW matsakaici) da kewayon zafin aiki (-30\u00b0C zuwa +85\u00b0C). Fitowar haske yawanci tana raguwa yayin da zafin haɗin gwiwa ya karu. A cikin aikace-aikacen da ake tuƙi LED a ko kusa da matsakaicin halinsa, ko a cikin yanayin zafi mai zafi, yakamata a yi la'akari da shimfidar PCB don samar da isassun taimakon zafi ta hanyar fakitin tagulla da alamun.

8.3 Iyakar Aikace-aikace da Aminci

An yi niyya wannan samfurin don amfani da shi a cikin daidaitattun kayan aikin lantarki na kasuwanci da na masu amfani. Don aikace-aikacen da ke buƙatar ingantaccen aminci inda gazawar za ta iya haifar da haɗari ga lafiya ko lafiya (misali, jirgin sama, tallafin rayuwa na likita, sarrafa sufuri), ƙarin cancanta da shawarwari sun zama dole. Ba a tsara na'urar don ci gaba da bayyanawa a waje ko munanan yanayi sai dai idan an kare shi yadda ya kamata.

9. Kwatancen Fasaha da Trends

Amfani da fasahar AllnGaP don LEDs ja yana wakiltar ci gaba mai mahimmanci akan tsofaffin fasahohi kamar Gallium Arsenide Phosphide (GaAsP). AllnGaP yana ba da ingantaccen inganci na haske, yana haifar da haske mafi girma don irin wannan halin tuƙi, da ingantaccen kwanciyar hankali na zafin jiki. Fakitin mai kallon gefe (sabanin fitarwa na sama) yana da fa'ida musamman ga aikace-aikacen da ake buƙatar jagorar haske a layi daya tare da saman PCB, kamar a cikin allunan hasken gefe ko aikace-aikacen jagorar haske don hasken baya na madannai. Trends a cikin SMD LEDs yana ci gaba zuwa mafi inganci, ƙananan fakitoci, da faɗaɗa dacewa da atomatik, hanyoyin haɗawa masu zafi kamar haɗa solder mara gubar reflow.

10. Tambayoyin da ake yawan yi (FAQ)

Q: Menene bambanci tsakanin tsayin tsayin raƙuman ruwa da tsayin tsayin raƙuman ruwa?

A: Tsayin tsayin raƙuman ruwa (\u03bb_P) shine tsayin raƙuman ruwa wanda ƙarfin fitarwa na gani ya fi girma. Tsayin tsayin raƙuman ruwa (\u03bb_d) shine tsayin raƙuman ruwa guda ɗaya wanda idon ɗan adam ya gane, wanda aka lissafta daga madaidaitan launi na CIE. \u03bb_dya fi dacewa don ƙayyadaddun launi.

Q: Shin zan iya tuƙi wannan LED ba tare da resistor na jerin ba?

A: Ana ƙarfafa hakan sosai. Ƙarfin gaba yana da kewayon (1.6V zuwa 2.4V). Haɗa shi kai tsaye zuwa tushen ƙarfin lantarki ko da kaɗan sama da V_Fna iya haifar da babban halin yanzu mara sarrafawa, mai yuwuwar lalata LED nan take ko bayan lokaci.

Q: Me yasa kusurwar dubawa ta yi fadi haka (130\u00b0)?

A> Faɗin kusurwar dubawa siffa ce ta fakitin mai kallon gefe da ƙirar ruwan tabarau. Yana da fa'ida ga aikace-aikacen da ke buƙatar faɗi, ko da haske a kan yanki, maimakon tabo na haske mai mai da hankali.

Q: Ta yaya zan zaɓi lambar kwandon shara daidai?

A> Zaɓin lambar kwandon shara ya dogara da mafi ƙarancin haske da ake buƙata don aikace-aikacenku. Idan ƙirar ku tana buƙatar aƙalla 15 mcd, yakamata ku ƙayyade Bin L ko mafi girma (L, M, N). Yin amfani da babban kwandon shara yana tabbatar da cewa an cika buƙatar haskenku ko da tare da jurewar -15%.

11: Nazarin Ƙira da Amfani

Labari: Hasken Baya na Maɓalli na Membrane.

Mai ƙira yana ƙirƙira na'urar likita tare da maɓalli na roba na siliki wanda ke buƙatar hasken baya ja don aiki mai ƙarancin haske. Sarari yana da iyaka sosai a bayan maɓalli.

Zaɓuɓɓukan Ƙira:

1. An zaɓi LTST-S270KDKT saboda fitowar sa mai kallon gefe, wanda ya dace don haɗa haske zuwa gefen jagorar haske ko kuma haskaka gefen almara na maɓalli mai wucewa kai tsaye daga matakin PCB.

2. Guntun AllnGaP mai haske sosai yana tabbatar da isasshen fitar da haske ko da lokacin da aka watsa shi ta hanyar kayan maɓalli na roba.

3. An zaɓi halin tuƙi na 15 mA (ƙasa da matsakaicin 20 mA) don tabbatar da aminci na dogon lokaci da rage yawan zafi a cikin rufaffiyar na'urar.

4. An ƙayyade Bin M (18.0-28.0 mcd) don tabbatar da bayyananne, daidaitaccen bayyanar a duk maɓallai.

5. Shimfidar PCB ta haɗa da ƙayyadaddun girman fakitin solder kuma tana amfani da resistor mai iyakance halin yanzu mai girman 0805 a cikin jerin tare da kowane LED, wanda aka lissafta dangane da ƙarfin wutar lantarki da madaidaicin V_Fna LED.

6. Gidan haɗawa yana bin bayanan reflow na IR da aka bayar, kuma ana adana na'urori a cikin yanayi mai sarrafawa kafin amfani don biyan buƙatun MSL3.

Wannan hanya ta haifar da ingantaccen maɓalli mai haske, wanda ya dace da buƙatun kayan ƙarshe na ado da aiki.