Takardar Bayanin Fasaha na SMD Top View Blue LED 67-21 - Kunshin P-LCC-2 - 2.7-3.5V - 25mA - 90mW

1. Bayyana Samfurin

Jerin 67-21 suna wakiltar dangin na'urorin da aka haɗa a saman (SMD) masu fitar da haske (LED) waɗanda aka tsara don aikace-aikacen kallon sama. An ƙera wannan ɓangaren don samar da aikin nuna alama da hasken baya mai dogaro a cikin ƙaramin kunshin P-LCC-2 mai launin fari tare da taga mai tsabta mara launi. Babban manufar ƙirarsa ita ce ba da ingantaccen fitar da haske da ingantaccen haɗin kai, wanda ya sa ya dace musamman don haɗawa da bututun haske. Na'urar tana aiki a ƙananan matakan wutar lantarki, wannan fa'ida ce mahimmanci don kayan lantarki masu amfani da baturi ko masu hankali ga wutar lantarki inda ingantaccen amfani da makamashi ya fi muhimmanci.

Babban fa'idodin wannan LED sun haɗa da faɗin kusurwar kallonsa, wanda ke tabbatar da ganuwa daga mahanga daban-daban, da kuma dacewarsa da daidaitattun hanyoyin haɗawa ta atomatik. Ana ba da shi akan tef da reel don ingantaccen samarwa mai yawa. Samfurin yana bin wasu mahimman ka'idojin muhalli da tsaro, gami da kasancewa mara gubar, bin ka'idar EU REACH, da kuma cika buƙatun mara halogen (Br<900ppm, Cl<900ppm, Br+Cl<1500ppm). Hakanan an riga an daidaita shi bisa ma'aunin JEDEC J-STD-020D Level 3 don hankalin danshi.

2. Zurfin Binciken Sigogi na Fasaha

2.1 Matsakaicin Matsakaicin Matsayi

Matsakaicin Matsakaicin Matsayi yana ayyana iyakokin da za su iya haifar da lalacewa na dindindin ga na'urar. Waɗannan ba yanayin aiki ba ne. Ga jerin LED na 67-21, matsakaicin ƙarfin lantarki na baya (VR) shine 5V. Wuce wannan ƙarfin lantarki a cikin hanyar baya zai iya haifar da rushewar haɗin gwiwa. Matsakaicin ci gaba na gaba na gaba (IF) shine 25 mA. Don aikin bugun jini, ana ba da izinin matsakaicin ƙarfin lantarki na gaba (IFP) na 100 mA a ƙarƙashin zagayowar aiki na 1/10 a 1 kHz. Matsakaicin raguwar wutar lantarki (Pd) da kunshin zai iya ɗauka shine 90 mW, wanda yake da alaƙa kai tsaye da sarrafa zafi. Matsakaicin yanayin zafi na haɗin gwiwa (Tj) shine 115°C. An ƙididdige na'urar don aiki (Topr) tsakanin -40°C da +85°C kuma don ajiya (Tstg) tsakanin -40°C da +90°C. Zai iya jure watsawar lantarki (ESD) na 2000V (Samfurin Jikin Mutum). An ƙayyade yanayin zafin gishiri don duka sake kunnawa (260°C matsakaici don dakika 10) da gishiri na hannu (350°C matsakaici don dakika 3).

2.2 Halayen Lantarki da Na'ura mai kama da na gani

Ana auna Halayen Lantarki da Na'ura mai kama da na gani a daidaitaccen yanayin gwaji na Ta=25°C da IF=20mA, yana ba da sigogin aiki na yau da kullun. Ƙarfin haske (Iv) yana da kewayon yau da kullun daga mafi ƙanƙanta na 72 mcd zuwa matsakaicin 180 mcd, tare da takamaiman ƙimomin da aka ƙaddara ta lambar kwandon shara. Kusurwar kallo (2θ1/2), wanda aka ayyana shi azaman kusurwar da ƙarfin haske ya faɗi zuwa rabin ƙimar kololuwa, yawanci digiri 120 ne, yana ba da tsarin fitarwa mai faɗi sosai. Hasken da aka fitar shuɗi ne, tare da tsayin raƙuman ruwa (λp) yawanci kusan 468 nm. Tsayin raƙuman ruwa mai rinjaye (λd) ya bambanta daga 462 nm zuwa 472 nm. Faɗin bandeji na gani (Δλ) yawanci 20 nm ne. Ƙarfin lantarki na gaba (VF) da ake buƙata don tuƙi 20mA ta LED yana kewayo daga 2.70V zuwa 3.50V. Ƙarfin lantarki na baya (IR) yana da ƙasa sosai, tare da matsakaicin 10 μA lokacin da aka yi amfani da karkatar da baya na 5V.

3. Bayanin Tsarin Kwandon Shara

Ayyukan LED na iya bambanta daga rukuni zuwa rukuni. Don tabbatar da daidaito ga masu ƙira, an rarraba jerin 67-21 zuwa kwandon shara don mahimman sigogi: ƙarfin haske, tsayin raƙuman ruwa mai rinjaye, da ƙarfin lantarki na gaba.

3.1 Kwandon Shara na Ƙarfin Hasken

An sanya ƙarfin haske cikin lambobi huɗu: Q1 (72-90 mcd), Q2 (90-112 mcd), R1 (112-140 mcd), da R2 (140-180 mcd). Ana amfani da juzu'i na ±11%. Wannan yana ba da damar zaɓi bisa matakan haske da ake buƙata.

3.2 Kwandon Shara na Tsayin Raƙuman Ruwa Mai Rinjaye

Tsayin raƙuman ruwa mai rinjaye, wanda ke ayyana launin da ake gani, an haɗa shi a ƙarƙashin 'FA' kuma an sanya shi cikin lambobi biyar: AA0 (462.0-464.0 nm), AA1 (464.0-466.0 nm), AA2 (466.0-468.0 nm), AA3 (468.0-470.0 nm), da AA4 (470.0-472.0 nm). An ƙayyade juzu'i na ±1nm. Wannan yana ba da damar daidaita launi daidai a aikace-aikace.

3.3 Kwandon Shara na Ƙarfin Lantarki na Gaba

An haɗa ƙarfin lantarki na gaba a ƙarƙashin 'F' kuma an sanya shi cikin lambobi huɗu: 10 (2.70-2.90V), 11 (2.90-3.10V), 12 (3.10-3.30V), da 13 (3.30-3.50V). Ana amfani da juzu'i na ±0.1V. Sanin kwandon shara na VF yana taimakawa wajen ƙirar ingantattun da'irori masu iyakancewar wutar lantarki da kuma hasashen amfani da wutar lantarki.

4. Binciken Lanƙwasa Aiki

Takardar bayanin tana ba da wasu lanƙwasan halaye na yau da kullun waɗanda ke kwatanta halayen na'urar a ƙarƙashin yanayi daban-daban. Waɗannan jadawalin don tunani ne kuma suna wakiltar bayanan yau da kullun, ba tabbatattun mafi ƙanƙanta ko matsakaici ba.

Ƙarfin Lantarki na Gaba da Ƙarfin Lantarki na Gaba (Lanƙwasa IV):Wannan lanƙwasa yana nuna alaƙar ƙima tsakanin wutar lantarki da ke gudana ta LED da ƙarfin lantarki a cikinta. Yana da mahimmanci don tantance wurin aiki da ƙirar da'irar tuƙi. Lanƙwasa yawanci yana nuna cewa ƙaramin ƙaruwa a cikin ƙarfin lantarki bayan wurin kunna yana haifar da babban ƙaruwa a cikin wutar lantarki.

Dangantakar Ƙarfin Hasken da Ƙarfin Lantarki na Gaba:Wannan jadawalin yana nuna yadda fitar da haske ke ƙaruwa tare da ƙarfin lantarki na gaba. Gabaɗaya layi ne a cikin kewayon aikin da aka ba da shawarar amma yana iya cika a manyan igiyoyin ruwa. Yana taimakawa wajen zaɓar wutar lantarki don matakin haske da ake so.

Dangantakar Ƙarfin Hasken da Yanayin Yanayi:Wannan lanƙwasa yana nuna raguwar fitar da haske yayin da yanayin yanayi ya ƙaru. Ingantaccen LED yana raguwa tare da hawan zafin jiki. Wannan muhimmin abu ne don sarrafa zafi a aikace-aikace don kiyaye haske mai daidaito.

Lanƙwasa Rage Ƙarfin Lantarki na Gaba:Wannan jadawalin yana nuna matsakaicin ƙarfin lantarki na gaba na ci gaba da aka ba da izini a matsayin aikin yanayin yanayi. Yayin da zafin jiki ya tashi, dole ne a rage matsakaicin wutar lantarki don hana wuce matsakaicin yanayin zafi na haɗin gwiwa da kuma tabbatar da dogon lokacin dogaro.

Rarraba Bakan:Wannan makircin yana nuna ƙarfin haske da aka fitar a tsawon raƙuman ruwa daban-daban, wanda ya ta'allaka ne a tsayin raƙuman ruwa na ~468 nm. Yana nuna tsantsar gani da faɗin fitar da hasken shuɗi.

Zanen Radiation:Wannan makircin polar yana wakiltar rarraba sararin samaniya na ƙarfin haske, yana tabbatar da faɗin kusurwar kallo na digiri 120. Yana nuna yadda ake fitar da haske da ƙarfi a cikin hanyar gaba (0°) kuma yana raguwa zuwa gefuna.

5. Bayanin Injiniya da Kunshi

LED yana zaune a cikin kunshin P-LCC-2 (Plastic Leaded Chip Carrier). Jikin kunshin fari ne tare da ruwan tabarau mai tsabta mara launi. An ba da cikakken zane mai girma a cikin takardar bayanin, yana ƙayyade tsayi, faɗi, tsayi, tazarar jagora, da sauran mahimman fasalin injiniya. Duk juzu'i yawanci ±0.1mm sai dai idan an lura daban. Zanen ya haɗa da kallon sama, kallon gefe, da shawarar sawun ƙafa don shimfidar PCB, yana nuna geometry na kushin anode da cathode da kuma buɗe abin rufe fuska da aka ba da shawarar. Ana nuna polarity akan na'urar da kanta, yawanci ta alamar kamar tsaga ko ɗigo kusa da cathode.

6. Jagororin Gishiri da Haɗawa

Yin amfani da gishiri daidai yana da mahimmanci don dogaro.

Ajiya:Ana tattara abubuwan a cikin jakunkuna masu hana danshi tare da desiccant da katin nuna alamar danshi. Yakamata a buɗe jakar kawai nan da nan kafin amfani a cikin yanayin da aka sarrafa zuwa ƙasa da 30°C da 60% danshi dangi. Bayan buɗewa, dole ne a yi amfani da abubuwan a cikin lokacin da aka ƙayyade ta Matakin Hankalin Danshi (MSL 3, bisa J-STD-020D). Idan katin nuna alama ya nuna yawan danshi, ana buƙatar gasa a 60°C ±5°C na awanni 24 kafin amfani.

Sake Gishiri:An ba da shawarar takamaiman yanayin zafi don gishiri mara gubar. Bayanin ya haɗa da matakin riga-kafi (150-200°C na 60-120s), haɓaka zuwa matsakaicin zafin jiki (matsakaici 260°C), lokacin da ya wuce ruwa (217°C na 60-150s), da sanyaya mai sarrafawa. Lokacin da ya wuce 255°C bai kamata ya wuce dakika 30 ba, kuma matsakaicin zafin jiki na 260°C yakamata a riƙe shi na matsakaicin dakika 10. Ba ya kamata a yi sake kunnawa fiye da sau biyu. Kada a yi amfani da damuwa ga LED yayin dumama, kuma kada PCB ta karkace bayan gishiri.

Gishiri na Hannu:Idan ya cancanta, yakamata a yi gishiri na hannu tare da zafin ƙarshen ƙarfe ƙasa da 350°C na fiye da dakika 3 kowace tasha. Ƙarfin gishiri na ƙarfe yakamata ya zama 25W ko ƙasa da haka. Yakamata a bar tazarar aƙalla dakika 2 tsakanin gishiri kowace tasha. Ana ba da shawarar gishiri na ƙarfe mai kai biyu don kowane aikin gyara don guje wa damuwa na zafi.

7. Bayanin Kunshi da Oda

Ana ba da LED akan tef ɗin mai ɗaukar kaya na 8mm wanda aka nannade akan reels don haɗawa ta atomatik. Kowace reel tana ƙunshe da guda 2000. An ƙayyade girman reel da tef a cikin takardar bayanin. Alamar da ke kan reel tana ba da mahimman bayanai: Lambar Samfurin Abokin Ciniki (CPN), Lambar Samfur (P/N), Adadin Tattarawa (QTY), da lambobin kwandon shara don Matsayi na Ƙarfin Hasken (CAT), Matsayi na Tsayin Raƙuman Ruwa Mai Rinjaye (HUE), da Matsayi na Ƙarfin Lantarki na Gaba (REF), tare da Lambar Lot (LOT No).

8. Shawarwari na Aikace-aikace

Aikace-aikacen Yau da Kullun:Wannan LED ya dace da kayan aikin sadarwa (masu nuna alama da hasken baya a cikin wayoyi, injunan faks), hasken baya na LCD, maɓalli, da alamomi, aikace-aikacen bututun haske don jagorantar haske zuwa panel ko bezel, da amfani da mai nuna alama na gabaɗaya.

Abubuwan Ƙira: Iyakancewar Wutar Lantarki:Resistan mai iyakancewar wajewajibi ne. LED na'urori ne masu tuƙi, kuma ƙaramin canji a cikin ƙarfin lantarki na gaba zai iya haifar da babban canji, mai yuwuwar lalacewa a cikin wutar lantarki. Ana iya ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (Vsupply - VF) / IF, inda VF shine ƙarfin lantarki na gaba daga kwandon shara ko ƙimar yau da kullun, kuma IF shine wutar lantarki da ake so (misali, 20mA).Gudanar da Zafi:Duk da cewa raguwar wutar lantarki yana da ƙasa, tabbatar da isasshen yanki na tagulla na PCB ko ramukan zafi na iya taimakawa wajen watsar da zafi, musamman a cikin yanayin yanayi mai zafi ko lokacin da ake tuƙi a manyan igiyoyin ruwa. Wannan yana kiyaye fitar da haske da tsawon rai.Ƙirar Na'ura mai kama da na gani:Faɗin kusurwar kallo na 120° da ruwan tabarau mai tsabta sun sa ya yi kyau don aikace-aikacen bututun haske inda ake buƙatar cire haske da kuma jagoranta. Kunshin fari yana taimakawa wajen nuna haske na ciki, yana inganta ingantaccen aiki gabaɗaya.

9. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da LED shuɗi na gabaɗaya, jerin 67-21 suna ba da fa'idodi daban-daban guda da yawa. Faɗin kusurwar kallo na digiri 120 ya fi yawancin LED na yau da kullun waɗanda ke da ƙunƙun katako (misali, digiri 60-80), yana mai da shi mafi kyau don aikace-aikacen da ke buƙatar ganuwa daga gefe. Tsarin rarraba kwandon shara don ƙarfi, tsawon raƙuman ruwa, da ƙarfin lantarki yana ba masana'antun ingantaccen aiki mai iya hasasawa da daidaito, wanda ke da mahimmanci don daidaita launi da daidaiton haske a cikin tsararrun LED da yawa. An ƙera kunshin musamman don ingantaccen haɗin haske, yana haɓaka inganci lokacin amfani da jagororin haske. Bugu da ƙari, cikakken bin ka'idojin muhalli na zamani (RoHS, REACH, Maras Halogen) ya sa ya dace da kasuwannin duniya masu tsauraran ka'idoji.

10. Tambayoyin da ake yawan yi (FAQs)

Q: Me ya sa resistor mai iyakancewar wutar lantarki ya zama dole?

A: Halayen IV na LED na ƙima ne. Ba tare da resistor ba, wutar lantarki tana iyakance ne kawai ta ikon wutar lantarki da ƙaramin juriya na ciki na LED, wanda zai iya tuƙi wutar lantarki nan da nan fiye da matsakaicin 25mA, yana haifar da yawan zafi da gazawa mai muni.

Q: Zan iya tuƙi wannan LED tare da wadataccen 3.3V ba tare da resistor ba?

A: A'a. Ko da VF na yau da kullun yana 3.0V, bambance-bambance saboda rarraba kwandon shara, zafin jiki, da juzu'in masana'antu suna nufin ainihin VF na iya zama ƙasa. Wadataccen 3.3V da aka haɗa kai tsaye zai iya tilasta wutar lantarki mai yawa ta LED. Koyaushe yi amfani da resistor na jerin.

Q: Menene ma'anar 'Precondition: JEDEC J-STD-020D Level 3'?

A: Yana nufin abubuwan suna da Matakin Hankalin Danshi (MSL) na 3. Bayan an buɗe jakar shinge na danshi ta masana'anta, dole ne a haɗa abubuwan a kan PCB a cikin sa'o'i 168 (kwanaki 7) lokacin da aka adana a <30°C/60% RH. Idan wannan lokacin ya wuce, dole ne a sake gasa su kafin amfani don hana 'popcorning' yayin sake gishiri.

Q: Ta yaya zan fassara lambobin kwandon shara akan alamar reel?

A: Lambar CAT (misali, R1) tana gaya muku kewayon ƙarfin haske. Lambar HUE (misali, AA2) tana gaya muku kewayon tsayin raƙuman ruwa mai rinjaye. Lambar REF (misali, 11) tana gaya muku kewayon ƙarfin lantarki na gaba. Wannan yana ba ku damar tabbatar da sigogin lantarki da na gani na rukunin da kuke amfani da shi.

11. Misalin Amfani na Aiki

Yanayi: Ƙirar panel mai nuna alamar matsayi don na'urar likita mai ɗaukuwa.

Na'urar tana da LED masu nuna alamar matsayi da yawa (Wutar Lantarki, Ƙananan Baturi, Haɗin Bluetooth) a bayan taga polycarbonate mai launin duhu. An zaɓi jerin 67-21. Faɗin kusurwar kallonsa yana tabbatar da cewa ana iya ganin alamun ko da lokacin da aka duba na'urar daga kusurwa. Ƙananan buƙatun wutar lantarki (20mA) ya dace don haɓaka tsawon rai na baturi. An ƙera bututun haske don tafiyar da haske daga LED, wanda aka ɗora akan babban PCB, har zuwa taga gaban panel. Kunshin LED fari yana taimakawa wajen nuna haske cikin bututu. Mai zane ya zaɓi LED daga kwandon shara iri ɗaya na ƙarfi da tsawon raƙuman ruwa (misali, R1, AA2) don tabbatar da cewa duk alamun suna da haske iri ɗaya da launi. An aiwatar da sauƙaƙan da'irar tuƙi tare da resistor mai iyakancewar wutar lantarki ga kowane LED, wanda aka ƙididdige shi don tsarin wadataccen 3.3V. An shirya bayanin sake kunnawa daga takardar bayanin a cikin layin haɗin SMT.

12. Ka'idar Aiki

Wannan diode ne na semiconductor wanda ya dogara da kayan guntu na InGaN (Indium Gallium Nitride). Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce ƙarfin kunna diode (kusan 2.7-3.5V), ana shigar da electrons da ramuka cikin yanki mai aiki na semiconductor. Lokacin da waɗannan masu ɗaukar caji suka sake haɗuwa, ana sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke ciki na kayan InGaN yana ƙayyade makamashin bandgap, wanda kuma ke ayyana tsayin raƙuman ruwa (launi) na hasken da aka fitar - a wannan yanayin, hasken shuɗi kusan 468 nm. Kunshin P-LCC-2 yana haɗa guntun, yana ba da kariya ta injiniya, yana ɗauke da igiyoyin haɗin gwiwa, kuma ya haɗa da ruwan tabarau wanda ke siffanta katakon fitar da haske.

13. Trends na Fasaha

Ci gaban LED shuɗi, musamman masu inganci dangane da InGaN, gagarumar nasara ce a cikin hasken ƙwaƙƙwaran jiki, wanda ke ba da damar LED fari (ta hanyar canza phosphor) da cikakkun nuni masu launi. Trends na yanzu a cikin LED na SMD masu nuna alama kamar jerin 67-21 suna mai da hankali kan fagage da yawa:Ƙara Ingantaccen Aiki:Haɓaka kimiyyar kayan da ke ci gaba da nufin samar da ƙarin haske (mafi girman ingancin haske) a kowace raka'a na wutar lantarki, yana ƙara rage amfani da makamashi.Ƙananan Girma:Duk da yake P-LCC-2 kunshi ne na yau da kullun, akwai ci gaba mai ci gaba don ƙananan sawun ƙafa (misali, girman awo na 0402, 0201) don adana sararin PCB a cikin kayan lantarki na mabukaci masu raguwa.Ingantaccen Dogaro da Ƙarfi:Haɓaka kayan kunshi da fasahohin haɗa guntu suna ci gaba da tsawaita tsawon lokacin aiki da ƙara juriya ga zagayowar zafi da danshi.Matsakaicin Rarraba Kwandon Shara da Daidaiton Launi:Yayin da aikace-aikace ke buƙatar haske mafi daidai da daidaito, masana'antun suna aiwatar da mafi tsauraran hanyoyin rarraba kwandon shara don kwararar haske, daidaitawar launi, da ƙarfin lantarki na gaba.