Teburin Abubuwan Ciki
- 1. Bayanin Samfur
- 1.1 Siffofi da Fa'idodi na Asali
- 1.2 Aikace-aikace da Kasuwanni da Ake Nufi
- 2. Zurfin Bincike na Ma'auni na Fasaha
- 2.1 Matsakaicin Matsakaicin Ma'auni
- 2.2 Halayen Lantarki da Haske
- 2.2.1 Ƙarfin Haske da Kallon Kallo
- 2.2.2 Halayen Bakan
- 2.2.3 Ma'auni na Lantarki
- 3. Bayanin Tsarin Rarraba
- 3.1 Rarraba Ƙarfin Haske
- 3.2 Rarraba Matsakaicin Tsayin Raƙuman Ruwa (G6 kawai)
- 4. Bincike na Lanƙwasa Aiki
- 4.1 Halin Yanzu na Gaba vs. Ƙarfin Wutar Lantarki na Gaba (Lanƙwasa IV)
- 4.2 Ƙarfin Haske vs. Halin Yanzu na Gaba
- 4.3 Ƙarfin Haske vs. Yanayin Yanayi
- 4.4 Rarraba Bakan
- 4.5 Zanen Radiation
- 5. Bayanin Injiniya da Kunshin
- 5.1 Girman Kunshin da Zane-zane
- 5.2 Gano Polarity da Ƙirar Pad
- 6. Jagororin Haɗawa da Haɗawa
- 6.1 Bayanin Siffar Haɗawar Sake Dawowa
- Ana tattara LED ɗin a cikin jakar da ba ta shiga ruwa tare da desiccant. Kada a buɗe jakar har sai an shirya abubuwan haɗawa don amfani. Kafin buɗewa, yanayin ajiya ya kamata ya zama 30°C ko ƙasa da haka da kuma 90% danshi na dangi (RH) ko ƙasa da haka. Bayan buɗewa, abubuwan haɗawa suna da "rayuwar bene" na shekara guda idan an adana su a 30°C/60% RH ko ƙasa da haka. LED ɗin da ba a yi amfani da su ba ya kamata a sake rufe su a cikin kunshin hana danshi. Idan mai nuna alamar desiccant ya nuna shan ruwa ko kuma an wuce lokacin ajiya, ana buƙatar maganin gasa a 60°C ±5°C na awanni 24 don cire ruwan da aka sha da hana "popcorning" (fashewar kunshin) yayin haɗawar sake dawowa.
- 7.1 Ƙayyadaddun Reel da Tepe
- Ana ba da abubuwan haɗawa akan tef ɗin mai ɗaukar kaya mai faɗin 8 mm, wanda aka nannade akan daidaitaccen reel mai diamita 7-inch (178 mm). Kowane reel yana ɗauke da guda 3000. An ba da cikakkun bayanai na reel da tepe don tabbatar da dacewa da masu ciyarwa ta atomatik.
- Alamar reel ta ƙunshi maɓallan lambobi da yawa: CPN (Lambar Samfur na Abokin Ciniki), P/N (Lambar Samfur na Masana'anta, misali, 18-225/R6G6C-A01/3T), QTY (Adadin Kunshin), CAT (Matsayi/Matsayi na Ƙarfin Haske), HUE (Maɓallan Haɗin kai & Matsayi na Tsayin Raƙuman Ruwa), REF (Matsayi na Ƙarfin Wutar Lantarki na Gaba), da LOT No (Lambar Lot da za a iya gano shi). Fahimtar waɗannan lambobin yana da mahimmanci don sarrafa kaya da tabbatar da amfani da daidaitaccen kwandon aiki a cikin samarwa.
- 8.1 Iyakance Halin Yanzu Wajibi Ne
- Muhimmin bayanin ƙira shine wajabcin amfani da resistor mai iyakancewa na jerin (ko direba mai ci gaba) tare da wannan LED. Ƙarfin lantarki na gaba yana da jurewa da ƙimar zafin jiki mara kyau (yana raguwa yayin da zafin jiki ya tashi). Ba tare da iyakancewar halin yanzu ba, ko da ƙaramin ƙaruwa a cikin ƙarfin wutar lantarki ko raguwar V_F saboda dumama na iya haifar da ƙaruwar halin yanzu, wanda ke haifar da gazawar sauri. Ana iya ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (V_supply - V_F) / I_F, inda V_F shine ƙimar yau da kullun ko matsakaicin ƙimar daga takardar bayani, kuma I_F shine halin yanzu na aiki da ake so (misali, 20 mA).
- Duk da yake kunshin yana da ƙanƙanta, sarrafa zafi yana da mahimmanci don tsawon rayuwa da kwanciyar hankali na fitar da haske. Matsakaicin ragewar ƙarfi shine 60 mW. A 20 mA da V_F na yau da kullun na 2.0V, ƙarfin da aka watsar shine 40 mW, wanda yana cikin iyakoki. Koyaya, a cikin yanayin yanayi mai zafi ko idan an tuƙa shi a manyan halayen yanzu, dole ne a kula da shimfidar PCB. Samar da isasshen yanki na tagulla a kusa da gidajen LED yana taimakawa wajen fitar da zafi daga haɗin gwiwa. Ya kamata a tuntubi lanƙwasa ragewa don ƙididdige asarar haske a cikin yanayi mai zafi.
- Kusurwar kallo na digiri 120 yana ba da haske mai faɗi, mai watsewa. Don aikace-aikacen da ke buƙatar ƙarin haske mai jagora, ana iya amfani da na'urorin gani na biyu kamar ruwan tabarau ko bututun haske. Ƙananan girman LED yana sa ya dace don haɗawa cikin ƙunƙuntattun wurare a bayan alluna ko nuni.
- Babban bambancin LED 18-225 yana cikin ƙaramin girmansa na 1.6x0.8mm, wanda ya fi ƙanƙanta da yawancin LED na SMD na gargajiya kamar kunshin 0603 (1.6x0.8mm) ko 0402 (1.0x0.5mm), ko da yake tsayinsa yayi kama. Babban fa'idarsa ita ce samun takamaiman launin kore-rawa mai haske (G6) tare da daidaitaccen rarrabuwar tsayin raƙuman ruwa, wanda ba a saba da shi ba fiye da kore na yau da kullun. Haɗin faɗin kusurwar kallo na digiri 120 da mafi girman ƙarfin haske don girmansa (musamman bambancin R6) yana ba da daidaitattun daidaito tsakanin haske da ɗaukar yanki na kallo. Dacewarsa da daidaitattun hanyoyin sake dawowa marasa gubar da biyayya ga RoHS sun daidaita shi da ƙa'idodin muhalli na zamani.
- 10.1 Menene bambanci tsakanin tsayin raƙuman ruwa da tsayin raƙuman ruwa?
- Matsakaicin tsayin raƙuman ruwa (λ_p) shine tsayin raƙuman ruwa inda bakan fitarwa yake da matsakaicin ƙarfinsa. Matsakaicin tsayin raƙuman ruwa (λ_d) shine tsayin raƙuman ruwa guda ɗaya na hasken monochromatic wanda zai dace da launin da ake gani na LED. Ga LED masu ƙunƙuntaccen bakan, sau da yawa suna kusa, amma λ_d ya fi dacewa don ƙayyadaddun launi a cikin aikace-aikace kamar alamomi da nuni.
- Tukin LED a 30 mA ya wuce Matsakaicin Matsakaicin Ma'auni don ci gaba da halin yanzu na gaba (25 mA). Duk da yake zai iya samar da ƙarin haske da farko, zai ƙara yawan zafin haɗin gwiwa, ya hanzarta raguwar lumen (raguwar fitar da haske akan lokaci), kuma ya rage tsawon rayuwar aiki sosai. Ba a ba da shawarar don ingantaccen ƙira ba.
- Lambar CAT ta dace da kwandon aiki na ƙarfin haske (misali, P1, N2). Lambar HUE ta dace da launi/tsayin raƙuman ruwa (misali, C16 don G6). Yin amfani da abubuwan haɗawa daga kwandon aiki ɗaya a cikin samfur yana tabbatar da daidaiton haske da bayyanar launi. Don aikace-aikacen da ba su da mahimmanci, ana iya amfani da kowane kwandon aiki a cikin ƙayyadaddun bayanai, amma don daidaito, ƙayyadewa da sarrafa lambar kwandon aiki a cikin sayayya yana da mahimmanci.
- 11.1 Misali: Da'irar Nuni na Dashboard
- Yi la'akari da ƙirar alamar dashboard na mota 12V ta amfani da LED ɗin R6. Ana ɗauka V_F na yau da kullun na 2.0V da I_F da ake so na 20 mA. Resistor na jerin da ake buƙata shine R = (12V - 2.0V) / 0.020A = 500 Ohms. Mafi kusancin ƙimar ma'auni shine 510 Ohms. Ƙididdige halin yanzu: I_F = (12V - 2.0V) / 510Ω ≈ 19.6 mA, wanda yake da aminci kuma yana cikin ƙayyadaddun bayanai. Ƙarfin da aka watsar a cikin resistor shine (10V)^2 / 510Ω ≈ 0.196W, don haka resistor 1/4-watt ya isa. Faɗin kusurwar kallo yana tabbatar da cewa ana iya ganin alamar daga wurare daban-daban na direba.
- Don hasken baya na maɓalli da ke buƙatar LED ɗin G6 da yawa don samun daidaitaccen launi, yana da mahimmanci a ƙayyade lambar kwandon aiki na HUE (misali, C17) yayin sayayya. Bugu da ƙari, tuƙi duk LED daga tushen halin yanzu ɗaya ko amfani da resistors ɗaya ɗaya tare da jurewa mai ƙarfi (1%) yana taimakawa rage bambance-bambancen haske da ke haifar da bambance-bambancen ƙarfin lantarki na gaba. Ƙananan girman yana ba da damar tazara tsakanin maɓalli.
- Diodes masu fitar da haske (LEDs) na'urorin semiconductor ne waɗanda ke fitar da haske ta hanyar electroluminescence. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin gwiwar p-n, electrons daga kayan n-type suna haɗuwa da ramuka daga kayan p-type. Wannan tsarin haɗuwa yana sakin makamashi a cikin nau'in photons (haske). Takamaiman tsayin raƙuman ruwa (launi) na fitowar haske an ƙaddara shi ta hanyar bandgap na makamashi na kayan semiconductor da aka yi amfani da su. LED ɗin R6 yana amfani da guntun AlGaInP (Aluminum Gallium Indium Phosphide), wanda aka ƙera don samar da hasken ja. LED ɗin G6 shima yana amfani da guntun AlGaInP amma tare da wani abu daban don samar da hasken kore-rawa. Encapsulant na epoxy yana aiki don kare guntun, daidaita fitowar haske, kuma yana iya haɗawa da phosphors ko rini, ko da yake a cikin wannan sigar "Ruwa Bayyananne", yana da bayyananne.
- LED 18-225 yana wakiltar samfurin da ya girma a cikin yanayin LED na nuni na SMD. Gabaɗayan yanayin a wannan yanki yana ci gaba zuwa ƙananan girman kunshin (misali, 01005, 0.4x0.2mm), mafi inganci (ƙarin lumens kowace watt), da ingantaccen aminci. Hakanan akwai haɓakar haɗakar kayan lantarki na direba a cikin kunshin LED da kansa ("LED masu hankali"). Koyaya, abubuwan haɗawa kamar 18-225 sun kasance masu dacewa sosai saboda ingantaccen amincinsu, ƙarancin farashi, sauƙin amfani, da samuwa mai yawa. Suna aiki azaman ginshiƙan gini a cikin adadi maras ƙima na na'urorin lantarki inda ake buƙatar sauƙi, ingantaccen hasken nuni. Ƙarfafa kan samarwa maras gubar da biyayya ga RoHS, kamar yadda aka gani a cikin wannan takardar bayani, yana nuna sauyin masana'antu gaba ɗaya zuwa samar da kayan lantarki masu kula da muhalli.
1. Bayanin Samfur
Jerin 18-225 yana wakiltar ƙaramin kayan aikin LED da aka tsara don haɗawa a saman allon lantarki, wanda aka tsara don aikace-aikacen lantarki na zamani waɗanda ke buƙatar ƙanƙanta da ingantaccen aminci. Wannan takardar bayani ta ƙunshi nau'ikan farko guda biyu waɗanda aka gano ta lambobin guntu: R6 (Ja Mai Haske) da G6 (Kore-Rawa Mai Haske). Babban fa'idar wannan samfurin yana cikin ƙarancin girman sa idan aka kwatanta da LED na gargajiya, wanda ke ba masu zane damar samun ƙananan allon lantarki, yawan abubuwan haɗawa, da kuma ƙananan kayan aiki na ƙarshe. Ginin sa mai sauƙi ya sa ya zama zaɓi mai kyau don aikace-aikace masu ɗaukuwa da ƙanana.
1.1 Siffofi da Fa'idodi na Asali
Ana ba da na'urar a kan tef ɗin 8mm da aka nannade a kan ƙwanƙwasa mai diamita 7-inch, yana tabbatar da dacewa da ingantattun na'urorin haɗawa ta atomatik, wanda ke sauƙaƙe hanyoyin masana'antu masu yawa. An cancanta don amfani da dabarun haɗawa ta infrared (IR) da tururi, wanda ya bi ka'idojin haɗawa marasa gubar. An tabbatar da cewa samfurin ya bi ka'idar Ƙuntata Abubuwa Masu Haɗari (RoHS). Kasancewar nau'in launi ɗaya, kowane ɓangare yana fitar da takamaiman tsayin haske, wanda aka ayyana ta kayan guntunsa.
1.2 Aikace-aikace da Kasuwanni da Ake Nufi
Ana amfani da LED 18-225 a cikin faffadan aikace-aikace inda ake buƙatar ƙananan hasken nuni mai aminci. Manyan wuraren aikace-aikace sun haɗa da hasken baya na allunan kayan aiki da maɓallan membrane. A cikin kayan aikin sadarwa, yana aiki azaman alamomin yanayi da fitilun baya na maɓalli. Hakanan ya dace don samar da hasken baya mai lebur don na'urorin nuni na ruwa (LCDs), labaran maɓalli, da alamomi. Yanayinsa na gabaɗaya ya sa ya zama ɓangare mai fa'ida don kayan lantarki na masu amfani, sarrafa masana'antu, da tsarin da aka haɗa daban-daban.
2. Zurfin Bincike na Ma'auni na Fasaha
Wannan sashe yana ba da cikakken bincike na ma'auni na lantarki, haske, da zafin jiki da aka ƙayyade don LED 18-225, wanda ke da mahimmanci don ingantaccen ƙirar da'ira da hasashen aiki.
2.1 Matsakaicin Matsakaicin Ma'auni
Matsakaicin Matsakaicin Ma'auni yana ayyana iyakokin damuwa waɗanda za su iya haifar da lalacewa na dindindin ga na'urar. Waɗannan ba sharuɗɗan aiki na yau da kullun ba ne. Ga duka nau'ikan R6 da G6, matsakaicin ci gaba na halin yanzu (I_F) an ƙididdige shi a 25 mA. Ana iya samun mafi girman ƙarfin halin yanzu na kololuwa (I_FP) na 60 mA a ƙarƙashin yanayin bugun jini tare da cikakken aiki na 1/10 a 1 kHz. Matsakaicin ƙarfin lantarki na baya (V_R) shine 5 V. Ragewar ƙarfin lantarki (P_d) ga kowane LED yana iyakance zuwa 60 mW. Na'urar na iya jure watsawar lantarki (ESD) na 2000 V bisa ga ƙirar Jikin Mutum (HBM). Ana ƙayyade kewayon zafin aiki (T_opr) daga -40°C zuwa +85°C, tare da ɗan faɗaɗa kewayon zafin ajiya (T_stg) na -40°C zuwa +90°C. Bayanan zafin haɗawa suna da mahimmanci: haɗawar sake dawowa bai kamata ya wuce 260°C na dakika 10 ba, yayin da haɗawar hannu ya kamata a iyakance shi zuwa 350°C na dakika 3.
2.2 Halayen Lantarki da Haske
Ana auna Halayen Lantarki da Haske a daidaitaccen zafin haɗin gwiwa (T_a) na 25°C da ƙarfin halin yanzu (I_F) na 20 mA, sai dai idan an lura daban. Waɗannan suna wakiltar yanayin aiki na yau da kullun.
2.2.1 Ƙarfin Haske da Kallon Kallo
Ƙarfin haske (I_v) shine hasken da ake gani na LED. Don guntun R6 (Ja), mafi ƙarancin ƙarfi shine 45.0 mcd, tare da matsakaicin 112 mcd. Guntun G6 (Kore-Rawa) yana da mafi ƙarancin 28.5 mcd kuma matsakaicin 72.0 mcd. Takardar bayani ta lura da jurewar ±11% akan ƙarfin haske. Dukansu LED suna da faɗin kusurwar kallo (2θ1/2) na digiri 120, suna ba da tsarin fitar da haske mai faɗi, wanda ya dace da aikace-aikacen nuni.
2.2.2 Halayen Bakan
Matsakaicin tsayin raƙuman ruwa (λ_p) don guntun R6 yawanci shine 632 nm, kuma don guntun G6, shine 575 nm. Matsakaicin tsayin raƙuman ruwa (λ_d), wanda ke da alaƙa da launin da ake gani, an ƙayyade shi tare da kewayon: 617.0 nm zuwa 625.0 nm don R6, da 567.5 nm zuwa 575.5 nm don G6, tare da jurewar ±1 nm. Faɗin bakan (Δλ) na duka biyun yana kusan 20 nm, yana nuna tsaftar bakan fitowar haske.
2.2.3 Ma'auni na Lantarki
Matsakaicin ƙarfin lantarki (V_F) ga duka nau'ikan LED a 20 mA yana da ƙimar yau da kullun na 2.0 V, tare da mafi ƙarancin 1.7 V da matsakaicin 2.4 V. An lura da jurewar a matsayin ±0.10 V. An ƙayyade ƙarfin halin yanzu na baya (I_R) a matsakaicin 10 μA lokacin da aka yi amfani da bambancin baya na 5 V, yana nuna kyawawan halayen diode.
3. Bayanin Tsarin Rarraba
Don tabbatar da daidaiton launi da haske a cikin samarwa, ana rarraba LED zuwa kwandon aiki bisa ga ma'auni da aka auna. Wannan yana ba masu zane damar zaɓar abubuwan haɗawa waɗanda suka cika takamaiman buƙatun aikace-aikace don daidaito.
3.1 Rarraba Ƙarfin Haske
An raba LED ɗin R6 (Ja) zuwa ƙungiyoyin ƙarfin haske guda huɗu: P1 (45.0-57.0 mcd), P2 (57.0-72.0 mcd), Q1 (72.0-90.0 mcd), da Q2 (90.0-112 mcd). An raba LED ɗin G6 (Kore-Rawa) zuwa ƙungiyoyi huɗu: N1 (28.5-36.0 mcd), N2 (36.0-45.0 mcd), P1 (45.0-57.0 mcd), da P2 (57.0-72.0 mcd).
3.2 Rarraba Matsakaicin Tsayin Raƙuman Ruwa (G6 kawai)
Don bambancin G6, ana yin ƙarin rarrabuwa bisa ga matsakaicin tsayin raƙuman ruwa. Kwandon aiki sune C15 (567.5-569.5 nm), C16 (569.5-571.5 nm), C17 (571.5-573.5 nm), da C18 (573.5-575.5 nm). Wannan yana ba da damar daidaita launi daidai a cikin aikace-aikace inda takamaiman launukan kore-rawa suke da mahimmanci.
4. Bincike na Lanƙwasa Aiki
Bayanan hoto yana ba da haske game da yadda aikin LED ke bambanta da yanayin aiki, wanda ke da mahimmanci don ingantaccen ƙira.
4.1 Halin Yanzu na Gaba vs. Ƙarfin Wutar Lantarki na Gaba (Lanƙwasa IV)
Lanƙwasa na yau da kullun yana nuna alaƙar haɓaka tsakanin halin yanzu na gaba da ƙarfin lantarki na gaba. Ga duka nau'ikan R6 da G6, a wurin aiki da aka ba da shawarar na 20 mA, ƙarfin lantarki yawanci shine 2.0V. Dole ne masu zane su yi amfani da resistor mai iyakancewa ko direba mai ci gaba don tabbatar da cewa LED yana aiki a cikin ƙayyadaddun kewayon halin yanzu, saboda ƙaramin ƙaruwa a cikin ƙarfin lantarki na iya haifar da babban ƙaruwa, mai yuwuwar lalacewa a cikin halin yanzu.
4.2 Ƙarfin Haske vs. Halin Yanzu na Gaba
Wannan lanƙwasa yana nuna cewa ƙarfin haske yana ƙaruwa kusan layi daya tare da halin yanzu na gaba har zuwa wani lokaci. Yin aiki a ƙayyadaddun 20 mA yana ba da ƙimar fitar da haske. Wuce matsakaicin ci gaba na halin yanzu na iya ƙara haske na ɗan lokaci amma zai rage tsawon rayuwa da aminci saboda ƙarin zafin haɗin gwiwa.
4.3 Ƙarfin Haske vs. Yanayin Yanayi
Fitarwar LED tana raguwa yayin da yanayin yanayi (saboda haka, haɗin gwiwa) ya tashi. Lanƙwasa ragewa yana da mahimmanci ga aikace-aikacen da ke aiki a cikin yanayin zafi mai girma. Fitarwar LED na iya faɗuwa sosai yayin da zafin jiki ya kusanci iyakar aiki na 85°C. Dole ne masu zane su yi la'akari da wannan ragewar zafin jiki don tabbatar da isasshen haske a ƙarƙashin duk yanayin aiki.
4.4 Rarraba Bakan
Hotunan bakan na R6 da G6 suna nuna ƙarfin haske da aka fitar a tsawon raƙuman ruwa. Hoton R6 yana kewaye da 632 nm (ja), yayin da hoton G6 yana kewaye da 575 nm (kore-rawa). Faɗin bakan na 20 nm yana nuna ƙunƙuntaccen launi mai cikakken cikakken launi.
4.5 Zanen Radiation
Tsarin radiation na polar yana tabbatar da kusurwar kallo na digiri 120. Ƙarfin yana da mafi girma tare da axis na tsakiya (0°) kuma yana raguwa daidai gwargwado zuwa 50% na ƙimar kololuwa a ±60° daga axis.
5. Bayanin Injiniya da Kunshin
5.1 Girman Kunshin da Zane-zane
LED 18-225 yana da ƙaramin kunshin haɗawa a saman. Manyan girma sun haɗa da tsawon jiki na 1.6 mm, faɗin 0.8 mm, da tsayi na 0.5 mm (tare da jurewar ±0.1 mm sai dai idan an ƙayyade daban). Kunshin yana da na'urorin lantarki guda biyu a gefen ƙasa.
5.2 Gano Polarity da Ƙirar Pad
An yiwa polarity alama a sarari. An gano cathode ta hanyar alamar kore a saman kunshin don LED ɗin G6 da alamar ja don LED ɗin R6. A gefen ƙasa, cathode shine babban pad ko wanda ke da kusurwar da aka gyara. An ba da shawarar shimfidar gidan gwauruwa, yana ba da shawarar girma don tabbatar da ingantaccen haɗin gwauruwa da daidaitawar daidai yayin sake dawowa. Takardar bayani ta jaddada cewa waɗannan girma na pad ne don tunani kawai kuma ya kamata a gyara su bisa ga takamaiman ƙa'idodin ƙira na PCB da buƙatun aiki.
6. Jagororin Haɗawa da Haɗawa
6.1 Bayanin Siffar Haɗawar Sake Dawowa
Don haɗawa maras gubar, dole ne a bi takamaiman bayanan zafin jiki. Yankin pre-heating ya kamata ya kasance tsakanin 150°C da 200°C na dakika 60-120. Lokacin da ya wuce zafin jiki na ruwa mai narkewa (217°C) ya kamata ya kasance dakika 60-150. Matsakaicin zafin jikin kunshin bai kamata ya wuce 260°C ba, kuma lokacin da ya wuce 255°C ya kamata a iyakance shi zuwa matsakaicin dakika 30. Matsakaicin ƙimar dumama ya kamata ya zama 6°C/sec, kuma matsakaicin ƙimar sanyaya ya kamata ya zama 3°C/sec. Bin wannan bayanin yana hana girgizar zafi kuma yana tabbatar da haɗin gwauruwa mai aminci ba tare da lalata epoxy na LED ko mutuwar semiconductor ba.
Ana tattara LED ɗin a cikin jakar da ba ta shiga ruwa tare da desiccant. Kada a buɗe jakar har sai an shirya abubuwan haɗawa don amfani. Kafin buɗewa, yanayin ajiya ya kamata ya zama 30°C ko ƙasa da haka da kuma 90% danshi na dangi (RH) ko ƙasa da haka. Bayan buɗewa, abubuwan haɗawa suna da "rayuwar bene" na shekara guda idan an adana su a 30°C/60% RH ko ƙasa da haka. LED ɗin da ba a yi amfani da su ba ya kamata a sake rufe su a cikin kunshin hana danshi. Idan mai nuna alamar desiccant ya nuna shan ruwa ko kuma an wuce lokacin ajiya, ana buƙatar maganin gasa a 60°C ±5°C na awanni 24 don cire ruwan da aka sha da hana "popcorning" (fashewar kunshin) yayin haɗawar sake dawowa.
7. Bayanin Kunshin da Oda
7.1 Ƙayyadaddun Reel da Tepe
Ana ba da abubuwan haɗawa akan tef ɗin mai ɗaukar kaya mai faɗin 8 mm, wanda aka nannade akan daidaitaccen reel mai diamita 7-inch (178 mm). Kowane reel yana ɗauke da guda 3000. An ba da cikakkun bayanai na reel da tepe don tabbatar da dacewa da masu ciyarwa ta atomatik.
7.2 Bayanin Alamar
Alamar reel ta ƙunshi maɓallan lambobi da yawa: CPN (Lambar Samfur na Abokin Ciniki), P/N (Lambar Samfur na Masana'anta, misali, 18-225/R6G6C-A01/3T), QTY (Adadin Kunshin), CAT (Matsayi/Matsayi na Ƙarfin Haske), HUE (Maɓallan Haɗin kai & Matsayi na Tsayin Raƙuman Ruwa), REF (Matsayi na Ƙarfin Wutar Lantarki na Gaba), da LOT No (Lambar Lot da za a iya gano shi). Fahimtar waɗannan lambobin yana da mahimmanci don sarrafa kaya da tabbatar da amfani da daidaitaccen kwandon aiki a cikin samarwa.
8. La'akari da Ƙirar Aikace-aikace
8.1 Iyakance Halin Yanzu Wajibi Ne
Muhimmin bayanin ƙira shine wajabcin amfani da resistor mai iyakancewa na jerin (ko direba mai ci gaba) tare da wannan LED. Ƙarfin lantarki na gaba yana da jurewa da ƙimar zafin jiki mara kyau (yana raguwa yayin da zafin jiki ya tashi). Ba tare da iyakancewar halin yanzu ba, ko da ƙaramin ƙaruwa a cikin ƙarfin wutar lantarki ko raguwar V_F saboda dumama na iya haifar da ƙaruwar halin yanzu, wanda ke haifar da gazawar sauri. Ana iya ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (V_supply - V_F) / I_F, inda V_F shine ƙimar yau da kullun ko matsakaicin ƙimar daga takardar bayani, kuma I_F shine halin yanzu na aiki da ake so (misali, 20 mA).
8.2 Gudanar da Zafin Jiki
Duk da yake kunshin yana da ƙanƙanta, sarrafa zafi yana da mahimmanci don tsawon rayuwa da kwanciyar hankali na fitar da haske. Matsakaicin ragewar ƙarfi shine 60 mW. A 20 mA da V_F na yau da kullun na 2.0V, ƙarfin da aka watsar shine 40 mW, wanda yana cikin iyakoki. Koyaya, a cikin yanayin yanayi mai zafi ko idan an tuƙa shi a manyan halayen yanzu, dole ne a kula da shimfidar PCB. Samar da isasshen yanki na tagulla a kusa da gidajen LED yana taimakawa wajen fitar da zafi daga haɗin gwiwa. Ya kamata a tuntubi lanƙwasa ragewa don ƙididdige asarar haske a cikin yanayi mai zafi.
8.3 Ƙirar Haske
Kusurwar kallo na digiri 120 yana ba da haske mai faɗi, mai watsewa. Don aikace-aikacen da ke buƙatar ƙarin haske mai jagora, ana iya amfani da na'urorin gani na biyu kamar ruwan tabarau ko bututun haske. Ƙananan girman LED yana sa ya dace don haɗawa cikin ƙunƙuntattun wurare a bayan alluna ko nuni.
9. Kwatancen Fasaha da Bambance-bambance
Babban bambancin LED 18-225 yana cikin ƙaramin girmansa na 1.6x0.8mm, wanda ya fi ƙanƙanta da yawancin LED na SMD na gargajiya kamar kunshin 0603 (1.6x0.8mm) ko 0402 (1.0x0.5mm), ko da yake tsayinsa yayi kama. Babban fa'idarsa ita ce samun takamaiman launin kore-rawa mai haske (G6) tare da daidaitaccen rarrabuwar tsayin raƙuman ruwa, wanda ba a saba da shi ba fiye da kore na yau da kullun. Haɗin faɗin kusurwar kallo na digiri 120 da mafi girman ƙarfin haske don girmansa (musamman bambancin R6) yana ba da daidaitattun daidaito tsakanin haske da ɗaukar yanki na kallo. Dacewarsa da daidaitattun hanyoyin sake dawowa marasa gubar da biyayya ga RoHS sun daidaita shi da ƙa'idodin muhalli na zamani.
10. Tambayoyin da ake yawan yi (FAQ)
10.1 Menene bambanci tsakanin tsayin raƙuman ruwa da tsayin raƙuman ruwa?
Matsakaicin tsayin raƙuman ruwa (λ_p) shine tsayin raƙuman ruwa inda bakan fitarwa yake da matsakaicin ƙarfinsa. Matsakaicin tsayin raƙuman ruwa (λ_d) shine tsayin raƙuman ruwa guda ɗaya na hasken monochromatic wanda zai dace da launin da ake gani na LED. Ga LED masu ƙunƙuntaccen bakan, sau da yawa suna kusa, amma λ_d ya fi dacewa don ƙayyadaddun launi a cikin aikace-aikace kamar alamomi da nuni.
10.2 Zan iya tuƙa wannan LED a 30 mA don ƙarin haske?
Tukin LED a 30 mA ya wuce Matsakaicin Matsakaicin Ma'auni don ci gaba da halin yanzu na gaba (25 mA). Duk da yake zai iya samar da ƙarin haske da farko, zai ƙara yawan zafin haɗin gwiwa, ya hanzarta raguwar lumen (raguwar fitar da haske akan lokaci), kuma ya rage tsawon rayuwar aiki sosai. Ba a ba da shawarar don ingantaccen ƙira ba.
10.3 Ta yaya zan fassara lambobin kwandon aiki (CAT, HUE) akan alamar?
Lambar CAT ta dace da kwandon aiki na ƙarfin haske (misali, P1, N2). Lambar HUE ta dace da launi/tsayin raƙuman ruwa (misali, C16 don G6). Yin amfani da abubuwan haɗawa daga kwandon aiki ɗaya a cikin samfur yana tabbatar da daidaiton haske da bayyanar launi. Don aikace-aikacen da ba su da mahimmanci, ana iya amfani da kowane kwandon aiki a cikin ƙayyadaddun bayanai, amma don daidaito, ƙayyadewa da sarrafa lambar kwandon aiki a cikin sayayya yana da mahimmanci.
11. Misalai na Ƙira da Amfani na Aiki
11.1 Misali: Da'irar Nuni na Dashboard
Yi la'akari da ƙirar alamar dashboard na mota 12V ta amfani da LED ɗin R6. Ana ɗauka V_F na yau da kullun na 2.0V da I_F da ake so na 20 mA. Resistor na jerin da ake buƙata shine R = (12V - 2.0V) / 0.020A = 500 Ohms. Mafi kusancin ƙimar ma'auni shine 510 Ohms. Ƙididdige halin yanzu: I_F = (12V - 2.0V) / 510Ω ≈ 19.6 mA, wanda yake da aminci kuma yana cikin ƙayyadaddun bayanai. Ƙarfin da aka watsar a cikin resistor shine (10V)^2 / 510Ω ≈ 0.196W, don haka resistor 1/4-watt ya isa. Faɗin kusurwar kallo yana tabbatar da cewa ana iya ganin alamar daga wurare daban-daban na direba.
11.2 Misali: Hasken Baya na LED-Multi tare da Daidaitaccen Launi
Don hasken baya na maɓalli da ke buƙatar LED ɗin G6 da yawa don samun daidaitaccen launi, yana da mahimmanci a ƙayyade lambar kwandon aiki na HUE (misali, C17) yayin sayayya. Bugu da ƙari, tuƙi duk LED daga tushen halin yanzu ɗaya ko amfani da resistors ɗaya ɗaya tare da jurewa mai ƙarfi (1%) yana taimakawa rage bambance-bambancen haske da ke haifar da bambance-bambancen ƙarfin lantarki na gaba. Ƙananan girman yana ba da damar tazara tsakanin maɓalli.
12. Gabatarwa na Ƙa'idar Aiki
Diodes masu fitar da haske (LEDs) na'urorin semiconductor ne waɗanda ke fitar da haske ta hanyar electroluminescence. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin gwiwar p-n, electrons daga kayan n-type suna haɗuwa da ramuka daga kayan p-type. Wannan tsarin haɗuwa yana sakin makamashi a cikin nau'in photons (haske). Takamaiman tsayin raƙuman ruwa (launi) na fitowar haske an ƙaddara shi ta hanyar bandgap na makamashi na kayan semiconductor da aka yi amfani da su. LED ɗin R6 yana amfani da guntun AlGaInP (Aluminum Gallium Indium Phosphide), wanda aka ƙera don samar da hasken ja. LED ɗin G6 shima yana amfani da guntun AlGaInP amma tare da wani abu daban don samar da hasken kore-rawa. Encapsulant na epoxy yana aiki don kare guntun, daidaita fitowar haske, kuma yana iya haɗawa da phosphors ko rini, ko da yake a cikin wannan sigar "Ruwa Bayyananne", yana da bayyananne.
13. Trends na Fasaha da Mahallin
LED 18-225 yana wakiltar samfurin da ya girma a cikin yanayin LED na nuni na SMD. Gabaɗayan yanayin a wannan yanki yana ci gaba zuwa ƙananan girman kunshin (misali, 01005, 0.4x0.2mm), mafi inganci (ƙarin lumens kowace watt), da ingantaccen aminci. Hakanan akwai haɓakar haɗakar kayan lantarki na direba a cikin kunshin LED da kansa ("LED masu hankali"). Koyaya, abubuwan haɗawa kamar 18-225 sun kasance masu dacewa sosai saboda ingantaccen amincinsu, ƙarancin farashi, sauƙin amfani, da samuwa mai yawa. Suna aiki azaman ginshiƙan gini a cikin adadi maras ƙima na na'urorin lantarki inda ake buƙatar sauƙi, ingantaccen hasken nuni. Ƙarfafa kan samarwa maras gubar da biyayya ga RoHS, kamar yadda aka gani a cikin wannan takardar bayani, yana nuna sauyin masana'antu gaba ɗaya zuwa samar da kayan lantarki masu kula da muhalli.
The 18-225 LED represents a mature product in the landscape of SMD indicator LEDs. The general trend in this sector continues toward even smaller package sizes (e.g., 01005, 0.4x0.2mm), higher efficiency (more lumens per watt), and improved reliability. There is also a growing integration of driver electronics within the LED package itself ("smart LEDs"). However, components like the 18-225 remain highly relevant due to their proven reliability, low cost, ease of use, and wide availability. They serve as fundamental building blocks in countless electronic devices where simple, reliable indicator lighting is required. The emphasis on Pb-free and RoHS-compliant manufacturing, as seen in this datasheet, reflects the industry-wide shift toward environmentally conscious electronics production.
Kalmomin Ƙayyadaddun LED
Cikakken bayanin kalmomin fasaha na LED
Aikin Hasken Wutar Lantarki
| Kalma | Naúrar/Wakilci | Bayanin Sauri | Me yasa yake da muhimmanci |
|---|---|---|---|
| Ingancin Hasken Wuta | lm/W (lumen kowace watt) | Fitowar haske kowace watt na wutar lantarki, mafi girma yana nufin mafi ingancin kuzari. | Kai tsaye yana ƙayyade matakin ingancin kuzari da farashin wutar lantarki. |
| Gudun Hasken Wuta | lm (lumen) | Jimillar hasken da tushe ke fitarwa, ana kiransa "haske". | Yana ƙayyade ko hasken yana da haske sosai. |
| Kusurwar Dubawa | ° (digiri), misali 120° | Kusurwar da ƙarfin haske ya ragu zuwa rabi, yana ƙayyade faɗin haske. | Yana shafar kewar haskakawa da daidaito. |
| Zafin Launi (CCT) | K (Kelvin), misali 2700K/6500K | Zafi/sanyin haske, ƙananan ƙimomi rawaya/zafi, mafi girma fari/sanyi. | Yana ƙayyade yanayin haskakawa da yanayin da suka dace. |
| CI / Ra | Ba naúrar, 0–100 | Ikon ba da launukan abubuwa daidai, Ra≥80 yana da kyau. | Yana shafar sahihancin launi, ana amfani dashi a wurare masu buƙatu kamar shaguna, gidajen tarihi. |
| SDCM | Matakan ellipse MacAdam, misali "5-mataki" | Ma'aunin daidaiton launi, ƙananan matakai suna nufin mafi daidaiton launi. | Yana tabbatar da daidaiton launi a cikin rukunin LED iri ɗaya. |
| Matsakaicin Tsawon Raɗaɗin Hasken | nm (nanomita), misali 620nm (ja) | Tsawon raɗaɗin haske daidai da launin LED masu launi. | Yana ƙayyade launin ja, rawaya, kore LED masu launi ɗaya. |
| Rarraba Bakan Hasken | Layin tsawon raɗaɗi da ƙarfi | Yana nuna rarraba ƙarfi a cikin tsawon raɗaɗin haske. | Yana shafar ba da launi da ingancin launi. |
Ma'auni na Lantarki
| Kalma | Alamar | Bayanin Sauri | Abubuwan ƙira |
|---|---|---|---|
| Ƙarfin lantarki na gaba | Vf | Mafi ƙarancin ƙarfin lantarki don kunna LED, kamar "maƙallan farawa". | Ƙarfin lantarki na injin dole ya zama ≥Vf, ƙarfin lantarki yana ƙara don LED a jere. |
| Ƙarfin lantarki na gaba | If | Ƙimar ƙarfin lantarki don aikin LED na yau da kullun. | Yawanci tuƙi mai ƙarfi akai-akai, ƙarfin lantarki yana ƙayyade haske da tsawon rai. |
| Matsakaicin Ƙarfin lantarki na bugun jini | Ifp | Matsakaicin ƙarfin lantarki mai jurewa na ɗan lokaci, ana amfani dashi don duhu ko walƙiya. | Fadin bugun jini da sake zagayowar aiki dole ne a sarrafa su sosai don guje wa lalacewa. |
| Ƙarfin lantarki na baya | Vr | Matsakaicin ƙarfin lantarki na baya da LED zai iya jurewa, wanda ya wuce zai iya haifar da rushewa. | Dangane dole ne ya hana haɗin baya ko ƙarfin lantarki. |
| Juriya na zafi | Rth (°C/W) | Juriya ga canja wurin zafi daga guntu zuwa solder, ƙasa yana da kyau. | Babban juriya na zafi yana buƙatar zubar da zafi mai ƙarfi. |
| Rigakafin ESD | V (HBM), misali 1000V | Ikon jurewa zubar da wutar lantarki, mafi girma yana nufin ƙasa mai rauni. | Ana buƙatar matakan hana wutar lantarki a cikin samarwa, musamman ga LED masu hankali. |
Gudanar da Zafi & Amincewa
| Kalma | Ma'aunin maɓalli | Bayanin Sauri | Tasiri |
|---|---|---|---|
| Zazzabin Haɗin gwiwa | Tj (°C) | Ainihin yanayin aiki a cikin guntun LED. | Kowane raguwa 10°C na iya ninka tsawon rai; yayi yawa yana haifar da lalacewar haske, canjin launi. |
| Ragewar Lumen | L70 / L80 (sa'o'i) | Lokacin da haske ya ragu zuwa 70% ko 80% na farko. | Kai tsaye yana ayyana "tsawon sabis" na LED. |
| Kula da Lumen | % (misali 70%) | Kashi na hasken da aka riƙe bayan lokaci. | Yana nuna riƙon haske akan amfani na dogon lokaci. |
| Canjin Launi | Δu′v′ ko ellipse MacAdam | Matsakaicin canjin launi yayin amfani. | Yana shafar daidaiton launi a cikin yanayin haskakawa. |
| Tsufa na Zafi | Lalacewar kayan aiki | Lalacewa saboda yanayin zafi na dogon lokaci. | Zai iya haifar da raguwar haske, canjin launi, ko gazawar buɗe kewaye. |
Tufafi & Kayan Aiki
| Kalma | Nau'ikan gama gari | Bayanin Sauri | Siffofi & Aikace-aikace |
|---|---|---|---|
| Nau'in Kunshin | EMC, PPA, Yumbu | Kayan gida masu kare guntu, samar da hanyar sadarwa ta gani/zafi. | EMC: juriya mai kyau na zafi, farashi mai rahusa; Yumbu: mafi kyawun zubar da zafi, tsawon rai. |
| Tsarin Guntu | Gaba, Guntu Juyawa | Tsarin na'urorin lantarki na guntu. | Juyawar guntu: mafi kyawun zubar da zafi, inganci mafi girma, don ƙarfi mai ƙarfi. |
| Rufin Phosphor | YAG, Silicate, Nitride | Yana rufe guntu shuɗi, yana canza wasu zuwa rawaya/ja, yana haɗa su zuwa fari. | Phosphor daban-daban suna shafar inganci, CCT, da CRI. |
| Ruwan tabarau/Optics | Lefi, Microlens, TIR | Tsarin gani a saman yana sarrafa rarraba haske. | Yana ƙayyade kusurwar dubawa da layin rarraba haske. |
Kula da Inganci & Rarraba
| Kalma | Abun rarraba | Bayanin Sauri | Manufa |
|---|---|---|---|
| Kwalin Gudun Hasken | Lambar misali 2G, 2H | An tattara su ta hanyar haske, kowace ƙungiya tana da ƙananan/matsakaicin ƙimar lumen. | Yana tabbatar da daidaiton haske a cikin jeri ɗaya. |
| Kwalin Ƙarfin lantarki | Lambar misali 6W, 6X | An tattara su ta hanyar kewayon ƙarfin lantarki na gaba. | Yana sauƙaƙe daidaitawar tuƙi, yana inganta ingancin tsarin. |
| Kwalin Launi | Ellipse MacAdam 5-mataki | An tattara su ta hanyar daidaitattun launi, yana tabbatar da ƙuntataccen kewayon. | Yana ba da garantin daidaiton launi, yana guje wa launi mara daidaituwa a cikin kayan aikin. |
| Kwalin CCT | 2700K, 3000K da sauransu | An tattara su ta hanyar CCT, kowanne yana da madaidaicin kewayon daidaitawa. | Yana cika buƙatun CCT na yanayi daban-daban. |
Gwaji & Takaddun Shaida
| Kalma | Matsakaicin/Gwaji | Bayanin Sauri | Muhimmanci |
|---|---|---|---|
| LM-80 | Gwajin kula da lumen | Haskakawa na dogon lokaci a yanayin zafi akai-akai, yana rikodin lalacewar haske. | Ana amfani dashi don kimanta rayuwar LED (tare da TM-21). |
| TM-21 | Matsakaicin kimanta rayuwa | Yana kimanta rayuwa a ƙarƙashin yanayi na ainihi bisa bayanan LM-80. | Yana ba da hasashen kimiyya na rayuwa. |
| IESNA | Ƙungiyar Injiniyoyin Haskakawa | Yana rufe hanyoyin gwajin gani, lantarki, zafi. | Tushen gwaji da masana'antu suka amince. |
| RoHS / REACH | Tabbatarwar muhalli | Yana tabbatar da babu abubuwa masu cutarwa (darma, mercury). | Bukatar shiga kasuwa a duniya. |
| ENERGY STAR / DLC | Tabbatarwar ingancin kuzari | Tabbatarwar ingancin kuzari da aiki don samfuran haskakawa. | Ana amfani dashi a cikin sayayyan gwamnati, shirye-shiryen tallafi, yana haɓaka gasa. |