Bayanin Fasaha na SMD LED LTST-E682QETBWT - Ja & Shudi - 30mA - 75mW/108mW - Takardun Fasaha na Hausa

1. Bayanin Samfur

LTST-E682QETBWT na'urar haske ce mai haɗawa da allon (SMD LED) mai launi biyu a cikin fakitin guda ɗaya. An tsara shi don sarrafa allon da'irar da aka buga (PCB) ta atomatik, wanda ya sa ya dace da masana'antu masu yawa. Kayan ya haɗu da nau'ikan semiconductor guda biyu: AlInGaP don hasken ja da InGaN don hasken shudi, kowannensu ana sarrafa su ta hanyar nau'i-nau'i na anode-cathode daban-daban. Wannan ƙirar an yi niyya ne don aikace-aikacen da ke buƙatar ƙaramin bayyanar halin ko hasken baya a cikin na'urorin lantarki masu ƙarancin sarari.

1.1 Siffofi

• Ya bi ka'idojin RoHS (Ƙuntata Abubuwa Masu Hatsari).
• An yi fakitin a cikin tef na 8mm akan reels masu diamita 7-inch don dacewa da kayan aikin ɗauka da sanyawa ta atomatik.
• Tsarin fakitin EIA (Ƙungiyar Masana'antu na Lantarki) na yau da kullun.
• Matsakaicin tuƙi masu dacewa da da'irar haɗawa (IC).
• Ya dace da hanyoyin siyar da guduro na infrared (IR).
• An riga an shirya shi zuwa matakin haɗarin danshi na JEDEC (Majalisar Injiniyan Na'urorin Lantarki) 3.

1.2 Aikace-aikace

Wannan LED an yi niyya ne don ɗimbin kayan lantarki na mabukaci da na masana'antu inda ake buƙatar masu nuna alama na gani masu aminci. Misalan amfani sun haɗa da masu nuna halin da ake ciki da masu nuna wutar lantarki a cikin kayan aikin sadarwa (misali, na'urorin hanyar sadarwa, modem), na'urori masu sarrafa ofis (misali, firinta, na'urori masu dubawa), kayan aikin gida, da nau'ikan allunan sarrafa masana'antu daban-daban. Hakanan ana iya amfani da shi don hasken baya na allon gaba na maɓalli ko alamomi, da kuma a cikin alamun cikin gida masu ƙarancin ƙuduri inda ake buƙatar takamaiman launuka.

2. Cikakken Bayanin Ƙayyadaddun Fasaha

Wannan sashe yana ba da cikakken bincike na sigogi na lantarki, na gani, da na zafi waɗanda ke ayyana iyakokin aiki da aikin LED.

2.1 Matsakaicin Ƙimar Ƙarfafawa

Waɗannan ƙimomi suna wakiltar iyakokin damuwa waɗanda sama da su lalacewar dindindin na na'urar na iya faruwa. Ba a ba da garantin aiki a ƙarƙashin ko a waɗannan iyakokin ba. Duk ƙimar an ƙayyade su a yanayin zafin yanayi (Ta) na 25°C.

• Rushewar Wutar Lantarki (Pd):Ja: 75 mW, Shudi: 108 mW. Wannan shine matsakaicin yawan wutar lantarki da aka ba da izini a matsayin zafi. Wuce wannan na iya haifar da hawan zafin haɗuwa da lalacewa cikin sauri.
• Matsakaicin Halin Gaba na Gaba (I_FP):100 mA ga duka launuka. Wannan yana yiwuwa ne kawai a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun jini 0.1ms) don hana yin zafi sosai.
• Halayen Gaba na DC (I_F):30 mA ga duka launuka. Wannan shine matsakaicin halin yanzu na ci gaba da aka ba da shawarar don aiki mai aminci na dogon lokaci.
• Kewayon Zafin Aiki:-40°C zuwa +85°C. An tsara na'urar don yin aiki a cikin wannan tazarar zafin yanayi.
• Kewayon Zafin Ajiya:-40°C zuwa +100°C. Ana iya adana na'urar ba tare da amfani da wutar lantarki ba a cikin waɗannan iyakokin.

2.2 Halayen Lantarki-Gani

Ana auna waɗannan sigogi a Ta=25°C tare da halin yanzu na gaba (I_F) na 20mA, wanda shine daidaitaccen yanayin gwaji.

• Ƙarfin Hasken Hasken (I_V):Ma'auni mai mahimmanci na fitowar hasken da aka gani. Ga LED Ja, kewayon na yau da kullun shine 450-1080 millicandelas (mcd). Ga LED Shudi, kewayon shine 280-680 mcd. Ƙimar ainihin don takamaiman naúrar ya dogara da matsayin rumbun sa.
• Kusurwar Dubawa (2θ_1/2):Yawanci digiri 120. Wannan shine cikakken kusurwar da ƙarfin haske ya faɗi zuwa rabin ƙimar axial mafi girma. Ruwan tabarau mai yaduwa yana haifar da tsarin fitarwa mai faɗi, mai kama da Lambertian wanda ya dace da duban kusurwa mai faɗi.
• Matsakaicin Tsawon Tsawon Tsawon Tsawon (λ_P):Ja: 632 nm (na yau da kullun), Shudi: 468 nm (na yau da kullun). Wannan shine tsawon tsawon da rarraba ikon bakan ya fi girma.
• Mafi Girman Tsawon Tsawon (λ_d):Ja: 616-628 nm, Shudi: 465-475 nm. Wannan shine tsawon tsawon guda ɗaya da idon ɗan adam ya gane wanda ya fi dacewa da launin LED. An samo shi daga madaidaitan launi na CIE.
• Rabin Faɗin Layin Bakan (Δλ):Ja: 20 nm, Shudi: 25 nm (na yau da kullun). Wannan yana nuna tsaftar bakan; ƙaramin ƙima yana nufin launi mafi launi ɗaya.
• Ƙarfin Gaba (V_F):Ja: 1.7-2.5V, Shudi: 2.6-3.6V a 20mA. LED Shudi yana buƙatar ƙaramin ƙarfi saboda faɗin bandgap na kayan InGaN. Dole ne masu ƙira su yi la'akari da wannan bambanci lokacin tuƙi launuka biyu daga layin wutar lantarki ɗaya.
• Halin Baya (I_R):Matsakaicin 10 µA a ƙarfin baya (V_R) na 5V. Ba a tsara LED don aikin karkatar da baya ba; wannan sigogi ne da farko don gwajin inganci.

3. Bayanin Tsarin Rarrabuwa

Don tabbatar da daidaito a cikin samarwa mai yawa, ana rarraba LED zuwa rumbunan aiki. LTST-E682QETBWT yana amfani da tsarin rarrabuwa na ƙarfin haske.

3.1 Rumbunan Ƙarfin Hasken Hasken

Kowane launi yana da rumbuna uku na ƙarfi tare da jurewar ±11% a cikin kowane rumbu.

• Rumbunan Ja (AlInGaP):
  • R1: 450 - 600 mcd
  • R2: 600 - 805 mcd
  • R3: 805 - 1080 mcd
• Rumbunan Shudi (InGaN):
  • B1: 280 - 375 mcd
  • B2: 375 - 500 mcd
  • B3: 500 - 680 mcd

Wannan rarrabuwa yana ba masu ƙira damar zaɓar sassa waɗanda suka cika takamaiman buƙatun haske don aikace-aikacensu, yana tabbatar da daidaiton gani a cikin nau'ikan da yawa a cikin samfur.

4. Bayanin Injiniya da Fakitin

4.1 Girman Fakitin da Pinout

Na'urar ta yi daidai da ƙafar SMD na yau da kullun. Mahimman girma sun haɗa da girman jiki da tazarar jagora, waɗanda ke da mahimmanci don ƙirar ƙirar ƙasa na PCB. Ayyukan fil ɗin kamar haka ne: Fil ɗin 1 da 2 suna don LED Shudi, kuma Fil ɗin 3 da 4 suna don LED Ja. Cathode da anode na kowane launi an haɗa su da ciki zuwa takamaiman filaye; tuntuɓar cikakken zanen fakitin ya zama dole don daidaitaccen alkibla. Duk jurewar girma yawanci ±0.2mm sai dai idan an ƙayyade.

4.2 Shawararriyar Ƙafar Haɗin PCB

An ba da shawarar ƙirar ƙasa (shimfidar tagulla) don siyar da guduro na infrared ko tururi. Yin bin wannan shawarar yana taimakawa wajen cimma filayen siyar da guduro masu aminci, daidaitaccen daidaitawa, da ingantaccen canja wurin zafi yayin aikin siyar da guduro, yana rage lalacewar kabari ko kuskuren daidaitawa.

5. Jagororin Haɗawa da Sarrafawa

5.1 Tsarin Siyar da Guduro

Kayan ya dace da hanyoyin siyar da guduro na infrared marasa gubar (Pb-free). An ba da shawarar bayanin yanayin zafi wanda ya bi J-STD-020B. Mahimman sigogi sun haɗa da:

• Dumama Kafin:150-200°C har zuwa dakika 120 don dumama allon a hankali da kunna flux.
• Matsakaicin Zafin Jiki:Matsakaicin 260°C. Lokacin da ya wuce 217°C (zafin ruwa don guduro SnAgCu) yakamata a sarrafa shi.
• Jimlar Lokacin Siyar da Guduro:Matsakaicin dakika 10 a matsakaicin zafin jiki, tare da matsakaicin zagaye biyu na sake kwarara da aka ba da izini.

Don gyara da hannu tare da ƙarfe mai siyar da guduro, zafin ƙarshen bai kamata ya wuce 300°C ba, kuma lokacin tuntuɓar yakamata a iyakance zuwa dakika 3 a kowane haɗin gwiwa, sau ɗaya kawai, don hana lalacewar zafi ga fakitin filastik da mutuwar semiconductor.

5.2 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan siyar da guduro, yakamata a yi amfani da takamaiman kaushi kawai. Nitse LED a cikin barasa na ethyl ko isopropyl a zafin daki na ƙasa da minti ɗaya yana yarda. Mugayen ko sinadarai da ba a ƙayyade ba na iya lalata ruwan tabarau na epoxy da fakitin, suna haifar da canza launi ko fashewa.

5.3 Haɗarin Danshi da Ajiya

An yi fakitin a matsayin Matakin Haɗarin Danshi 3 (MSL3), LED ɗin an rufe su a cikin jakar shinge na danshi tare da desiccant. Yakamata a adana su a ≤30°C da ≤70% danshin yanayi (RH). Da zarar an buɗe jakar asali, \"rayuwar bene\" shine sa'o'i 168 (kwanaki 7) a ƙarƙashin yanayin ≤30°C/60% RH kafin a siyar da su. Idan wannan taga ya wuce, ana buƙatar gasa a kusan 60°C na aƙalla sa'o'i 48 don cire danshin da aka sha da hana \"popcorning\" (fashewar fakitin) yayin sake kwarara.

6. Bayanan Aikace-aikace da Abubuwan Ƙira

6.1 Hanyar Tuƙi

LED na'urori ne masu tuƙi na halin yanzu. Don tabbatar da daidaiton haske, musamman lokacin haɗa LED da yawa a layi daya, kowane LED ko kowane tashar launi yakamata a tuƙa shi da tushen halin yanzu na yau da kullun ko ta hanyar resistor mai iyakance halin yanzu. Ƙarfin gaba (V_F) yana da jurewa kuma ya bambanta da zafin jiki; tuƙi tare da tushen ƙarfin lantarki na yau da kullun ba tare da resistor na jerin ba zai iya haifar da halin yanzu mai yawa da gazawa cikin sauri.

6.2 Gudanar da Zafin Jiki

Duk da cewa rushewar wutar lantarki yana da ƙasa kaɗan, ingantaccen ƙirar zafi yana tsawaita rayuwa da kiyaye fitowar haske mai tsayi. PCB da kanta tana aiki azaman mai sanyaya zafi. Tabbatar da isasshen yanki na tagulla da aka haɗa zuwa filayen zafi (idan akwai) ko jagororin LED yana taimakawa wajen tarwatsa zafi. Yin aiki a ko kusa da matsakaicin halin yanzu na DC a cikin manyan yanayin zafi na yanayi zai ƙara zafin haɗuwa, wanda zai iya rage fitowar haske da haɗaɗɗen lalacewar lumen na dogon lokaci.

6.3 Ƙirar Gani

Kusurwar dubawa na digiri 120 da ruwan tabarau mai yaduwa suna ba da fitowar haske mai faɗi, mai laushi wanda ya dace da masu nuna alama na panel inda duban ba shi da tsauri axial. Don aikace-aikacen da ke buƙatar ƙarin hasken da aka jagoranta, ƙila na'urorin gani na biyu (misali, bututun haske, ruwan tabarau) su zama dole. Daban-daban ƙarfin haske na guntu ja da shudi na iya buƙatar daidaita halin yanzu mai zaman kanta idan daidaiton launi a cikin yanayin haske mai gauraye yana da mahimmanci.

7. Amincewa da Iyakokin Aiki

An yi niyya ne don na'urorin lantarki na gabaɗaya. Aikace-aikacen da suka haɗa da buƙatun amincin ƙarshe, kamar a cikin jiragen sama, sufuri, tallafin rayuwa na likita, ko tsarin masu mahimmanci na aminci, suna buƙatar tuntuɓar farko da cancanta. Dole ne a bi iyakokin aiki da aka ayyana a cikin Matsakaicin Ƙimar Ƙarfafawa da jagororin haɗawa don tabbatar da takamaiman aiki da tsawon rai. Rashin yin haka, kamar amfani da karkatar da baya, wuce iyakokin halin yanzu, ko siyar da guduro mara kyau, zai soke tsammanin aminci.