SMD LED LTST-C950RKGKT-5A Datasheet - 3.2x2.8x1.9mm - 2.0V - 75mW - Green AlInGaP - English Technical Document

1. Bayani Game da Samfur

Wannan takarda tana ba da cikakken ƙayyadaddun fasaha na LTST-C950RKGKT-5A, fitilar LED mai hawa saman ƙasa mai haske sosai. An ƙera ta don hanyoyin haɗawa ta atomatik, wannan ɓangaren ya dace sosai don aikace-aikacen da ke buƙatar hasken nuni mai aminci da inganci a cikin ƙaramin sarari.

1.1 Siffofi

• Yana bin ka'idojin muhalli na RoHS.
• Yana amfani da ƙwayar semiconductor Aluminium Indium Gallium Phosphide (AlInGaP) mai haske sosai don ingantaccen haske.
• Yana da ruwan tabarau mai kambi don ingantaccen fitar da haske da kusurwar kallo.
• An tattara shi a kan tef na milimita 12 da aka nada a kan reels masu diamita inci 7, masu dacewa da daidaitattun kayan aikin sarrafawa ta atomatik.
• Ya yi daidai da daidaitattun fayil na kunshin EIA (Electronic Industries Alliance).
• An tsara shi don dacewa da da'irori hade (I.C. compatible).
• Ya dace da amfani da hanyoyin siyar da infrared (IR) reflow.

1.2 Aikace-aikace

Wannan LED ya dace da kewayon kayan lantarki mai yawa, ciki har da amma ba'a iyakance ga:

• Na'urorin sadarwa (wayoyin mara igiya/wayoyin hannu).
• Kayan aikin sarrafa ofis da kwamfutocin tebur.
• Tsarin hanyar sadarwa da kayan amfanin gida.
• Alamomin cikin gida da aikace-aikacen nuni.
• Hasken baya na maɓallan rubutu da madannai.
• Alamomin matsayi da ikon nuni.
• Ƙananan nunin allo da fitattun haskakawa.

2. Girman Kunshin da Bayanan Injiniya

LTST-C950RKGKT-5A yana cikin daidaitaccen fakitin na'urar hawa a saman (SMD).

• Launin ruwan tabarau: Bayyananne kamar ruwa.
• Launin guntu/tushe: AlInGaP Green
• Key Dimensions (Typical): The package measures approximately 3.2mm in length, 2.8mm in width, and 1.9mm in height. All dimensional tolerances are ±0.1mm unless otherwise specified on the detailed mechanical drawing.

3. Kimantawa da Halaye

3.1 Absolute Maximum Ratings

Stresses beyond these limits may cause permanent damage to the device. All ratings are specified at an ambient temperature (Ta) of 25°C.

• Power Dissipation (Pd): 75 mW
• Peak Forward Current (IFP): 80 mA (under pulsed conditions: 1/10 duty cycle, 0.1ms pulse width)
• Continuous Forward Current (IF): 30 mA DC
• Operating Temperature Range: -30°C to +85°C
• Storage Temperature Range: -40°C zuwa +185°C
• Yanayin Solder na Infrared Reflow: Jure zafin kololuwar 260°C na iyakar dakika 10.

3.2 Suggested IR Reflow Profile

Don hanyoyin solder marasa gubar (Pb-free), ana ba da shawarar bayanin reflow. Muhimman ma'auni sun haɗa da yankin pre-heat har zuwa 200°C, zafin kololuwa bai wuce 260°C ba, da kuma lokacin da ya wuce 260°C ya iyakance zuwa dakika 10 iyakar. Ya kamata a siffanta bayanin don takamaiman ƙirar PCB, man solder, da tanda da aka yi amfani da su.

3.3 Electrical and Optical Characteristics

Matsakaicin ma'auni na aiki da aka auna a Ta=25°C da kuma na'urar gaba (IF) na 5mA, sai dai idan an lura.

• Ƙarfin Haskakawa (Iv): 71.0 - 450.0 mcd (millicandela). Ana sarrafa fadi mai yawa ta hanyar binning (duba Sashe na 4).
• Kusurwar Kallo (2θ½): Digiri 25. Wannan ita ce cikakkiyar kusurwar da ƙarfin haskakawa ya rabi darajar akan tsakiyar axis.
• Kololuwar Watsa Tsawon Zango (λP): 574.0 nm (na al'ada).
• Rinjaye Tsawon Zango (λd): 564.5 - 573.5 nm. Wannan yana bayyana launin da ake gani na LED kuma ana rarraba shi.
• Rabin Faɗin Layin Bakan (Δλ): 15.0 nm (na yau da kullun).
• Ƙarfin Lantarki na Gaba (VF): 1.6 - 2.2 V, tare da ƙimar yau da kullun na 2.0V a 5mA.
• Halin yanzu na Baya (IR): 10 µA (matsakaici) a ƙarfin lantarki na baya (VR) na 5V.

Bayanan Ma'auni: Luminous intensity is measured using a sensor filtered to match the CIE photopic eye-response curve. Caution against Electrostatic Discharge (ESD) is required during handling; proper grounding and ESD-safe practices are mandatory.

4. Bin Rank System

To ensure color and brightness consistency in production, LEDs are sorted into bins based on key parameters.

4.1 Darajar Ƙarfafawa Gaba (VF)

Binned at IF=5mA. Bin codes 1 through 6, with VF ranges from 1.60-1.70V (Bin 1) to 2.10-2.20V (Bin 6). Tolerance per bin is ±0.1V.

4.2 Darajar Ƙarfin Haskakawa (Iv)

Binned at IF=5mA. Bin codes Q, R, S, T, with Iv ranges from 71.0-112.0 mcd (Bin Q) to 280.0-450.0 mcd (Bin T). Tolerance per bin is ±15%.

4.3 Darajar Launi (Matsakaicin Tsawon Zango, λd)

An binne a IF=5mA. Lambobin bin B, C, D, tare da kewayon λd daga 564.5-567.5 nm (Bin B) zuwa 570.5-573.5 nm (Bin D). Yarjejeniya a kowane bin shine ±1 nm.

5. Bincike na Matsakaicin Ayyukan Lanƙwasa

Takardar bayanan ta ƙunshi hotunan zane-zane na mahimman alaƙa, masu mahimmanci don ƙira da'ira da sarrafa zafi.

• Dangantakar Haske mai ƙarfi da Ƙarfafawa na Gaba: Yana nuna yadda fitowar haske ke ƙaruwa tare da halin yanzu, yawanci a cikin hanyar da ba ta da layi a manyan halayen saboda tasirin dumama.
• Relative Luminous Intensity vs. Ambient Temperature: Yana nuna da ƙarancin zafin jiki na fitowar haske; ƙarfin yana raguwa yayin da zafin haɗin ke tashi.
• Forward Voltage vs. Forward Current: Yana kwatanta halayen I-V na diode, mai mahimmanci don zaɓar ƙimar resistor mai iyakancewar kwarara.
• Wavelength vs. Forward Current: Yana iya nuna ɗan canji a cikin kololuwa ko mafi rinjayen tsayin raƙuman ruwa tare da canjin kwararar tuƙi.
• Viewing Angle Pattern: Zanen polar da ke nuna rarraba sararin samaniya na ƙarfin haske.

6. Jagorar Mai Amfani don Haɗawa da Gudanarwa

6.1 Tsaftacewa

Idan tsaftacewa ya zama dole bayan yin siyar, yi amfani da kawai abubuwan narkewa da aka kayyade. Tsoma LED a cikin barasa na ethyl ko isopropyl a zafin daki na kasa da minti daya. Guji sinadarai da ba a kayyade ba wadanda zasu iya lalata kunshewar epoxy.

6.2 Tsarin Ƙasa na PCB da Ake Ba da Shawara

An ba da shirin kafet ɗin gwangwani da aka ba da shawara don tabbatar da daidaitawar injina mai kyau, samuwar fillet na solder, da kuma kwanciyar hankali na zafi yayin aikin sake kwarara. Bin wannan tsarin yana taimakawa hana tombstoning kuma yana tabbatar da haɗin gwangwani amintacce.

6.3 Ƙayyadaddun Kunsa na Tef da Reel

Ana LED ɗin ana samar da su a cikin tef ɗin mai ɗaukar kaya mai ƙyalli tare da tef ɗin murfin kariya, ana nannade su akan reels masu diamita 7-inch (178mm). Ƙididdigar reel na yau da kullun shine guda 2000. Marufi ya yi daidai da ƙayyadaddun ANSI/EIA-481. Mahimman ma'auni na tef (girman aljihu, pitch) da ma'auni na reel (diamita na cibiya, diamita na flange) an yi cikakken bayani don tabbatar da dacewa da kayan aikin haɗawa ta atomatik.

7. Cautions and Application Notes

7.1 Application Scope

An ƙera wannan LED don daidaitattun kayan aikin lantarki na kasuwanci da masana'antu. Ba a ƙididdige shi don aikace-aikacen mahimmanci na aminci ko babban dogaro inda gazawar za ta iya haifar da haɗari ga rayuwa ko lafiya (misali, jirgin sama, tallafin rayuwa na likita). Ana buƙatar tuntuɓar masana'anta don irin waɗannan amfanin.

7.2 Storage Conditions

• Kunshin da aka rufe: Ajiye a ≤ 30°C da ≤ 90% Danshin Yanayi (RH). Yi amfani da shi cikin shekara guda bayan buɗe jakar shinge danshi.
• Buɗaɗɗen Kunshin: Don abubuwan da aka cire daga fakitin bushewa, yanayin ajiya bai kamata ya wuce 30°C / 60% RH ba. Ana ba da shawarar kammala sake kwararar IR cikin mako guda (Matakin Hancin Danshi 3, MSL 3). Don ajiya mai tsawo, yi amfani da akwati mai rufi tare da busasshiyar. Idan an adana sama da mako guda, ana buƙatar gasa a 60°C na aƙalla sa'o'i 20 kafin a yi giciya don hana lalacewar "popcorning".

7.3 Soldering Guidelines

An bayar da cikakkun sigogin giciya don duka sake kwararar da giciyar hannu:

• Giciyar Sake Kwarara: Yi dumama kafin zuwa 150-200°C (matsakaici 120 sec), matsakaicin zafin jiki ≤ 260°C, lokacin sama da 260°C ≤ 10 sec (an yarda da mafi girman sake zagaye biyu).
• Giciyar Hannu: Zazzafin ƙarfe bai wuce 300°C ba, lokacin sayarwa bai wuce dakika 3 a kowane faifai ba (sau ɗaya kawai).

Ana jaddada mahimmancin bin bayanan sake kunnawa na tushen JEDEC da jagororin masana'anta na man gini don tabbatar da amincin haɗin gwiwa da kuma guje wa lalacewar zafi ga LED.

8. Zurfin Fasaha da La'akari da Zane

8.1 Ka'idar Aiki

LTST-C950RKGKT-5A ya dogara ne akan guntu na semiconductor na AlInGaP (Aluminium Indium Gallium Phosphide). Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce ƙarfin bandgap ɗinsa, electrons da ramuka suna haɗuwa a yankin aiki, suna sakin makamashi a cikin nau'in photons. Takamaiman abun da ke cikin gawa na AlInGaP an ƙera shi don samar da haske a yankin tsawon raƙuman ruwa na kore (kusan 574nm). Ruwan tabarau na epoxy mai siffar dome yana aiki don fitar da ƙarin haske daga guntu da kuma siffanta tsarin fitarwa zuwa kusurwar kallo na digiri 25.

8.2 Tuƙin LED

Tushen mai tushen shine mafi kyawun hanyar tuka LED, domin yana tabbatar da tsayayyen haske ba tare da la'akari da ƙananan bambance-bambance a cikin ƙarfin lantarki na gaba ba. Don aikace-aikace masu sauƙi, resistor mai iyakancewar ƙarfin lantarki a jere tare da wadata lantarki ya zama ruwan dare. Ƙimar resistor (R) ana iya ƙididdige ta ta amfani da Dokar Ohm: R = (V_supply - VF_LED) / I_desired. Ta yin amfani da na yau da kullun VF na 2.0V a 5mA tare da wadata 5V, R = (5V - 2.0V) / 0.005A = 600Ω. Mai zane ya kamata ya yi amfani da matsakaicin VF daga takardar bayanan (2.2V) don ƙididdige mafi munin yanayin ƙarfin lantarki don guje wa wuce matsakaicin ƙimar ƙarfin lantarki.

8.3 Gudanar da Zafi

Ko da yake ƙaramin na'ura ne, gudanar da zafi yana da mahimmanci ga tsawon rai da aiki. Dole ne a mutunta iyakar 75mW mafi girman watsawar wutar lantarki. Yin aiki a cikin manyan ƙarfin lantarki ko a cikin manyan yanayin zafi na yanayi yana ƙara zafin haɗin gwiwa, wanda ke haifar da raguwar fitowar haske (kamar yadda aka gani a cikin maɓallan aiki), haɓakar raguwar lumen, da yuwuwar rage tsawon rai. Tabbatar da isasshen yanki na tagulla akan PCB a ƙasa da kewaye da kushin zafi na LED (idan ya dace) ko kushin solder yana taimakawa wajen tarwatsa zafi.

8.4 Optical Design Considerations

Kallon kusurwar digiri 25 ya sa wannan LED ya dace don aikace-aikacen nuna alama da aka yi niyya. Don hasken baya na panel ko ƙirƙirar ƙarin haske mai yaduwa, za a buƙaci na'urorin gani na biyu kamar jagororin haske ko fina-finai masu yaduwa. Ruwan-ruwan ruwa yana samar da ƙaƙƙarfan katako, yayin da ruwan tabarau mai yaduwa zai haifar da tsarin fitarwa mai faɗi, mai laushi.

8.5 Comparison and Selection

Lokacin zaɓar LED, injiniyoyi suna kwatanta ma'auni masu mahimmanci: Haske (Iv), Launi (Tsawon raƙuman ruwa, daidaitawar CIE), Kallon Kallon, Ƙarfin Wutar Lantarki, da Girman Kunshin. Fasahar AlInGaP a cikin wannan LED tana ba da ingantacciyar inganci da kyakkyawan kwanciyar hankali a cikin kewayon launin kore/rawaya idan aka kwatanta da tsofaffin fasahohi. Tsarin binning yana ba da damar zaɓi daidai don aikace-aikacen da ke buƙatar daidaitaccen launi ko daidaitawar haske a cikin raka'a da yawa.

8.6 Typical User Questions Answered

Q: Shin zan iya tuka wannan LED a 20mA akai-akai?
A: Ee, matsakaicin matsakaicin ci gaba na yanzu shine 30mA. Yin aiki a 20mA yana cikin ƙayyadaddun ƙayyadaddun, amma dole ne ku tabbatar da ɓarnawar wutar lantarki (VF * IF) bai wuce 75mW ba. A 20mA da VF na yau da kullun na 2.0V, wutar lantarki shine 40mW, wanda aka yarda.

Q: Me yasa akwai irin wannan faɗin kewayon a cikin Ƙarfin Haskakawa (71-450 mcd)?
A: Wannan shine yiwuwar yadawa gabaɗaya a cikin duk samarwa. Don takamaiman oda, za ku zaɓi kwandon shara (misali, Bin T: 280-450 mcd) don samun ƙaramin kewayon haske mai ƙarfi, mai hasashe.

Q: Ta yaya zan fassara "Kololuwa" da "Mafi rinjaye" tsawon raƙuman ruwa?
A: Peak Wavelength (λP=574nm) ni daga cikin tsarin haske wanda ke da mafi ƙarfi. Dominant Wavelength (λd=564.5-573.5nm) ana lissafta shi daga taswirar launi na CIE kuma yana wakiltar launin da ake gani. λd ya fi dacewa don ƙayyadaddun launi a cikin aikace-aikacen da ke da alaƙa da ɗan adam.

8.7 Application Case Study: Status Indicator Panel

Yi la'akari da ƙirar panel nuna matsayi don na'urar hanyar sadarwa tare da LED guda huɗu masu kama da kore. Don tabbatar da kamanni iri ɗaya:

1. Binning: Ƙayyade rukunin Hue iri ɗaya (misali, Bin C: 567.5-570.5nm) da rukunin Ƙarfin Haskakawa (misali, Bin S: 180-280 mcd) ga duk LED huɗu. Wannan yana tabbatar da launi da haske kusan iri ɗaya.
2. Ƙirar Kewayawa: Yi amfani da layin 5V na gama gari. Yi lissafin resistor mai iyakancewar ƙarar lantarki don tuƙi na 5mA ta amfani da matsakaicin VF (2.2V) don tabbatar da daidaiton haske ko da VF na kowane ya bambanta: R = (5V - 2.2V) / 0.005A = 560Ω. Yi amfani da resistors masu jurewar kashi 1%.
3. Tsarin PCB: Bi da aka ba da shawarar tsarin ƙasa. Haɗa ƙaramin zubar da tagulla da aka haɗa zuwa kushin cathode don taimakawa zubar da zafi, musamman idan PCB ɗin yana cikin rufi.
4. Assembly: Bi jagororin MSL3. Idan an buɗe reel, shirya yin solder duk LEDs a cikin mako guda ko adana su yadda ya kamata tare da desiccant.

8.8 Trends Fasaha

AlInGaP LEDs suna wakiltar fasaha mai cikakkiya da inganci sosai don bakan launi na amber-zuwa-ja, tare da kore yana a cikin iyakar gajeriyar zango na iyawarsa. Ci gaba da ci gaba a cikin masana'antar LED yana mai da hankali kan ƙara inganci (lumens a kowace watt), inganta yadda ake nuna launi, da rage farashi. Don tsantsar launuka na kore da shuɗi, fasahar InGaN (Indium Gallium Nitride) ita ce ta mamaye kuma tana ci gaba da samun haɓaka inganci cikin sauri. Yarjejeniyar a cikin marufi tana zuwa ga ƙananan sawun ƙafa, mafi girman ƙarfin wutar lantarki, da ingantattun hanyoyin zafi (misali, ƙirar jujjuyawar guntu) don sarrafa zafi daga guntu masu haske. Wannan takamaiman SMD LED yana amfani da ingantaccen fasahar marufi wanda aka inganta don dogaro da haɗawa ta atomatik a cikin manyan kayan lantarki na mabukaci da na masana'antu.