SMT CBI Blue LED LTL-M11TB1H310Q Datasheet - Dimensions 3.0x2.0x1.6mm - Voltage 3.8V - Power 80mW - Blue/White

1. Bayanin Samfur

LTL-M11TB1H310Q wani Alamar Tsarin Kwandishan (CBI) ne ta Fasahar Haɗawa ta Surface (SMT). Ya ƙunshi mai riƙon kusurwar dama na filastik baƙar fata (gida) wanda aka ƙera don haɗawa da takamaiman fitilar LED. Babban aikin sa shine samar da haske mai matuƙar bayyanawa ko alamar halin da ake ciki akan allunan da'irar da aka buga (PCBs). Na'urar tana amfani da guntu na semiconductor na InGaN (Indium Gallium Nitride) shuɗi. Hasken shuɗin da ke fitowa yana ratsa ta cikin ruwan tabarau mai watsewa fari, wanda ke watsa hasken don ƙirƙirar filin kallo mafi faɗi, mafi daidaito idan aka kwatanta da ruwan tabarau mai tsabta. An zaɓi kayan ginin baƙi musamman don haɓaka ma'aunin bambanci, wanda ke sa alamar da ke haskakawa ta yi haske sosai a kan bangon duhu, musamman a cikin yanayi mai haske.

1.1 Fa'idodi na Ciki da Kasuwannin Manufa

An ƙera samfurin don haɗawa cikin layukan haɗa na'urorin lantarki na zamani. Manyan fa'idodinsa sun haɗa da dacewa da sarrafa ɗauka da sanyawa ta atomatik da hanyoyin siyar da sake kunnawa, wanda ke haifar da ingantaccen ƙirar masana'antu mai yawa. Ƙirar gidan da za a iya tattarawa tana ba da damar ƙirƙirar jeri na alamu a tsaye ko a kwance a cikin ƙaramin ƙafa. Na'urar ta bi ka'idodin RoHS kuma ba ta da gubar, tana cika ƙa'idodin muhalli na duniya. Manyan kasuwannin manufa da aikace-aikacen sun haɗa da alamomin halin da ake ciki a cikin na'urorin kwamfuta da allunan uwa, alamun sigina da haɗin kai a cikin kayan aikin sadarwa (masu karkatarwa, masu sauya), hasken baya na nuni ko alamun wutar lantarki a cikin kayan lantarki na masu amfani, da alamun panel a cikin tsarin sarrafa masana'antu da kayan aikin ma'auni.

2. Binciken Sigogi na Fasaha

Wannan sashe yana ba da cikakken fassarar ma'auni na mahimman sigogi na lantarki, na gani, da na zafi da aka ayyana a cikin takardar bayanan, yana bayyana mahimmancinsu ga injiniyoyin ƙira.

2.1 Matsakaicin Matsakaici na Cikakke

Waɗannan ƙididdiga suna ayyana iyakokin matsin lamba wanda bayansu lalacewa ta dindindin ga na'urar na iya faruwa. Ba a ba da garantin aiki a ƙarƙashin ko a waɗannan iyakokin ba.

• Power Dissipation (Pd): 80 mW: Wannan shine matsakaicin adadin wutar lantarki da fakitin LED zai iya canzawa cikin aminci zuwa zafi da haske ba tare da wuce iyakokin zafinsa ba. Wuce wannan ƙimar yana haifar da haɗarin yin zafi mai yawa ga haɗin semiconductor, wanda zai haifar da ƙaruwar lalacewa ko gazawar bala'i.
• Peak Forward Current (I_FP): 100 mA: Wannan shine matsakaicin halin yanzu na lokaci-lokaci da LED zata iya jurewa a ƙarƙashin yanayin bugun jini (duty cycle ≤ 10%, faɗin bugun ≤ 0.1ms). Yana da alaƙa da ɗan gajeren walƙiya mai ƙarfi amma ba don aiki na ci gaba ba.
• DC Forward Current (I_F): 20 mA: Wannan shine matsakaicin shawararriyar halin yanzu na ci gaba don ingantaccen aiki na dogon lokaci. Matsakaicin yanayin gwaji na sauran sigogi (kamar ƙarfin haske) shine 10 mA, yana nuna daidaitaccen wurin aiki wanda ke ba da daidaiton haske da tsawon rai.
• Operating Temperature Range: -40°C to +85°C: An ƙididdige LED don yin aiki daidai a cikin wannan kewayon zafin yanayi. Ayyuka a matsanancin yanayi na iya bambanta da ƙayyadaddun 25°C.
• Soldering Temperature: 260°C for 5 seconds max.: Wannan yana bayyana matsakaicin yanayin zafi da na'urar za ta iya jurewa yayin sake haɗa gyaɗa ba tare da lalacewa ba, yana daidaitawa da buƙatun tsarin gyaɗa maras gubar.

2.2 Electrical & Optical Characteristics

These are the typical performance parameters measured at TA=25°C and I_F=10mA, unless otherwise stated.

• Luminous Intensity (I_V): 8.7 (Min), 23 (Typ), 40 (Max) mcd: This measures the perceived brightness of the LED as seen by the human eye (photopic vision). The wide range (Min to Max) indicates a production binning process. The classification code marked on the packing bag corresponds to this intensity bin.
• Viewing Angle (2θ_1/2): 40° (Typ): Defined as the full angle at which the luminous intensity drops to half of its peak (on-axis) value. A 40° angle indicates a moderately focused beam, wider than a narrow spotlight but more directional than a fully diffused lamp. The white diffused lens is responsible for shaping this angle.
• Peak Emission Wavelength (λ_P): 468 nm (Typ): Wavelength ma fiye da ake samun mafi girman ƙarfin haske. Wannan dabi'ar zahiri ce ta InGaN chip.
• Dominant Wavelength (λ_d): 464-477 nm: Wannan yana wakiltar tsayayyen wavelength daya da ya fi bayyana launin LED ga idon mutum, wanda aka samo daga zanen launi na CIE. Tsayin da aka kayyade (464-477 nm) yana ayyana rukunin launi na wannan samfur, yana tabbatar da daidaiton launin shuɗi a cikin kayan samarwa.
• Spectral Line Half-Width (Δλ): 20 nm (Typ): Tsawon wavelength wanda ƙarfin haske ya kai aƙalla rabin mafi girman ƙarfinsa. Ƙimar 20 nm ta zama al'ada ga LED na shuɗi na InGaN kuma tana nuna tsaftataccen launi na gani.
• Forward Voltage (V_F): 3.1 (Min), 3.8 (Typ) V: Faɗuwar ƙarfin lantarki a kan LED lokacin da ake tafiyar da shi da ƙayyadadden ƙarfin lantarki (10mA). Wannan yana da mahimmanci don ƙirƙirar da'irar iyakancewar ƙarfin lantarki. Bambancin ya samo asali ne daga yadda ake samar da semiconductor.
• Reverse Current (I_R): 10 µA max. at V_R=5V: LEDs are not designed for reverse bias operation. This parameter is for test purposes only. Applying a reverse voltage exceeding 5V can cause breakdown and damage the device.

3. Binning System Explanation

The datasheet implies a binning system to ensure consistency in key parameters for automated assembly and consistent end-product appearance.

3.1 Luminous Intensity Binning

The luminous intensity is classified into bins, with a code marked on each packing bag (Note 3). The specified range is from 8.7 mcd (minimum) to 40 mcd (maximum). Designers should select the appropriate bin based on the required brightness level for their application. Using LEDs from the same bin within a product ensures uniform indicator brightness.

3.2 Dominant Wavelength Binning

The dominant wavelength is binned between 464 nm and 477 nm. This tight control ensures that all LEDs designated as this part number will appear as the same shade of blue to the human eye, which is critical for applications where color consistency is important (e.g., multi-indicator panels).

4. Performance Curve Analysis

While the specific graphs are not reproduced in the text, the datasheet references typical curves which are standard for LED characterization.

4.1 Forward Current vs. Forward Voltage (I-V Curve)

The I-V curve for an LED is exponential. For the LTL-M11TB1H310Q, at the typical operating current of 10 mA, the forward voltage is approximately 3.8V. The curve shows that a small increase in voltage beyond the "turn-on" point results in a large increase in current. This highlights the critical need for a current-limiting device (resistor or constant-current driver) and why LEDs are considered current-operated devices.

4.2 Luminous Intensity vs. Forward Current

This curve is generally linear over a range. Luminous intensity increases proportionally with forward current. However, operating above the recommended DC current (20 mA) will lead to super-linear increase in heat generation and rapid degradation of light output (lumen depreciation).

4.3 Temperature Dependence

Aikin LED yana da hankali ga zazzabi. Yayin da zazzabin haɗin yake ƙaruwa:

• Forward Voltage (V_F) yana raguwa kaɗan.
• Luminous Intensity (I_V) yana raguwa. Ainihin alaƙar an ayyana ta ta hanyar ƙididdigar zafi, wanda ba a ƙayyade a nan ba amma shine mahimmin la'akari don aikace-aikacen dogaro mai girma.
• Dominant Wavelength (λ_d) na iya canzawa kaɗan, mai yuwuwa ya shafi launin da ake gani a matsanancin zafin jiki.

5. Mechanical & Packaging Information

5.1 Outline Dimensions and Polarity

Na'urar wani sashi ne na SMT kusurwa dama. Gidan an yi shi da baƙar fata robobi. LED kanta an kwatanta shi da shuɗi tare da ruwan tabarau mai watsewa. Muhimman bayanan haɗawa sun haɗa da: duk ma'auni suna cikin milimita, tare da daidaitaccen haƙuri na ±0.25mm sai dai idan an ƙayyade. Polarity na LED (anode/cathode) ana nuna shi ta hanyar fasalin jikin gida ko kuma daidaitawar ciki, wanda dole ne ya dace da alamar polarity na sawun PCB.

5.2 Tape and Reel Packaging

The device is supplied on embossed carrier tape for automated assembly. Key specifications:

• Carrier Tape: Made of black conductive polystyrene alloy, 0.40 ±0.06 mm thick.
• Reel Size: Standard 13-inch (330mm) reel.
• Quantity per Reel: 1,400 pieces.
• Packing Hierarchy: 1 reel is sealed in a Moisture Barrier Bag (MBB) with a desiccant and humidity indicator. 3 MBBs are packed in an inner carton (4,200 pcs total). 10 inner cartons are packed in an outer shipping carton (42,000 pcs total).

This packaging is designed for moisture sensitivity (MSL) and to prevent electrostatic discharge (ESD) due to the conductive tape.

6. Soldering & Assembly Guidelines

6.1 Storage and Handling

The LEDs are moisture-sensitive (MSL). When the sealed Moisture Barrier Bag (MBB) is unopened, they should be stored at ≤30°C and ≤70% RH, with a shelf life of one year. Once the MBB is opened, the components must be stored at ≤30°C and ≤60% RH. It is strongly recommended that components removed from the MBB be subjected to IR reflow soldering within 168 hours (7 days). If this time is exceeded, a bake-out at 60°C for at least 48 hours is required before soldering to remove absorbed moisture and prevent "popcorning" damage during reflow.

6.2 Soldering Process

The device is designed for reflow soldering. A sample JEDEC-compliant temperature profile is referenced. Key parameters from the datasheet:

• Reflow Soldering (Maximum): Peak temperature 260°C for 5 seconds.
• Pre-heat: 150-200°C for up to 120 seconds.
• Number of Reflows: Maximum of 2 times.

Hand soldering with an iron is permissible but must be limited to 300°C for a maximum of 3 seconds, and only performed once. No external stress should be applied to the leads during soldering while the LED is hot. Cleaning, if necessary, should use alcohol-based solvents like isopropyl alcohol.

6.3 Assembly Precautions

Idan ana buƙatar kafa gubar (ko da yake ba zai yuwu ba ga ɓangaren SMT mai tsafta), dole ne a yi shi kafin yin gishiri kuma a wani wuri aƙalla 3mm daga gindin ruwan tabarau na LED don guje wa lalata haɗin waya na ciki ko ruwan tabarau na epoxy. Yayin sanyawa akan PCB, ya kamata a yi amfani da ƙaramin ƙarfi na ƙwanƙwasa don guje wa damuwa na injiniya akan kunshin.

7. Application Design Considerations

7.1 Drive Circuit Design

Takardar bayanan ta bayyana a sarari: "LED na'ura ce da ake sarrafa ta ta hanyar halin yanzu." Hanyar tuƙi da aka ba da shawarar ita ce Da'ira A, wacce ta haɗa da resistor mai iyakancewar halin yanzu a jere ga kowane LED. Wannan yana da mahimmanci lokacin haɗa LED da yawa a layi daya. Saboda bambance-bambancen halitta a cikin ƙarfin lantarki na gaba (V_F), haɗa LED kai tsaye a layi daya ba tare da resistors ɗaya ɗaya ba (Da'ira B) zai sa halin yanzu ya rarraba ba daidai ba. LED tare da mafi ƙarancin V_F zai jawo ƙarin halin yanzu, yana bayyana mai haske kuma yana iya kasawa da wuri, yayin da wasu na iya zama duhu. Resistor na jere yana tabbatar da cewa kowane LED yana karɓar halin yanzu mai daidaito, yana tabbatar da haske iri ɗaya da tsawon rai. Ana ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (V_supply - V_{F_LED}) / I_F.

7.2 Thermal Management

Ko da yawan wutar lantarki ya yi ƙasa (80mW matsakaici), ingantaccen ƙira na thermal akan PCB yana ba da gudummawa ga dogon lokacin aminci. Tabbatar da isasshen yanki na tagulla a kusa da kushin LED yana taimakawa wajen kawar da zafi, kiyaye ƙananan zafin jiki da kuma adana fitowar haske na tsawon lokaci. Guji sanya LED kusa da wasu manyan hanyoyin zafi a kan allo.

7.3 Optical Integration

Gidan kusurwar dama yana jagorantar haske daidai da saman PCB. Masu ƙira dole ne su yi la'akari da tsayin abubuwan da ke kewaye don guje wa toshe kusurwar kallo. Gidan baƙar fata yana inganta bambanci, amma ƙirar panel ko bezel ɗin da ke kewaye kuma zai shafi bayyanar gani na ƙarshe da karantaccen alamar.

8. Technical Comparison & Differentiation

Idan aka kwatanta da daidaitaccen kunshin LED da aka yiwa solder kai tsaye zuwa allo, tsarin CBI (Circuit Board Indicator) yana ba da fa'idodi daban-daban. Gidan daban yana ba da kariya ta inji ga ɓangaren LED kuma yana ba da damar sauƙin maye gurbi ko keɓancewa na taron nuni. Ƙirar kusurwar dama tana adana sararin samaniya a tsaye (Z-tsayi) akan PCB, wanda yake da mahimmanci a cikin na'urori masu siriri. Siffar gidan da za a iya tattarawa tana ba da damar ƙirƙirar matsakaici, jerin alamomi masu yawa (misali, zane-zane) ta amfani da ƙira ɗaya mai sauƙi na inji. Amfani da ruwan tabarau mai watsewa fari akan guntu shuɗi yana samar da wuri mai laushi, mafi daidaitaccen haske idan aka kwatanta da ƙaƙƙarfan tushen ma'ana na LED shuɗi mai ruwan tabarau, yana inganta kwanciyar hankali da kyan gani.

9. Frequently Asked Questions (FAQ)

Q: Shin zan iya kunna wannan LED kai tsaye daga fitarwar dabaru na 5V ko fil ɗin microcontroller?
A: A'a. Dole ne ka yi amfani da resistor mai iyakancewar halin yanzu na jeri. Fil ɗin microcontroller na 5V na yau da kullun zai iya samar da 20-25mA, amma ba tare da resistor ba, ƙarancin juriya mai ƙarfi na LED zai yi ƙoƙarin jawo wuce gona da iri, wanda zai iya lalata duka LED da fil ɗin microcontroller. Lissafta ƙimar resistor bisa ga ƙarfin wadata, ƙarfin gaba na LED (~3.8V), da kuma halin yanzu da kake so (misali, 10mA).

Q: Me yasa ajiya da sarrafawa suke da tsauri sosai bayan buɗe jakar?
A: Kayan shafawa na filastik na SMT LEDs na iya ɗaukar danshi daga iska. A lokacin tsarin haɗaɗɗen zafi mai zafi, wannan danshin da ke ciki yana canzawa cikin sauri zuwa tururi, yana haifar da ɓarkewar ciki, fashewa, ko "gaggauta" wanda ke lalata kayan. Rayuwar bene na sa'o'i 168 da hanyoyin gasa su ne hanyoyin daidaitattun masana'antu don sarrafa wannan Matakin Hankali na Danshi (MSL).

Q: Ƙarfin haske yana da faɗi mai faɗi (8.7 zuwa 40 mcd). Ta yaya zan tabbatar da daidaiton haske a cikin samfura na?
A: Kayyade da siyan LEDs daga kwandon ƙarfi guda ɗaya. Masana'anta suna yiwa alamar lambar rarrabuwa akan jakar tattarawa don wannan dalili. Yi aiki tare da mai rarrabawa ko mai siyarwa don neman kayan daga takamaiman kwandon da ya dace da bukatun haske na.

Q: Shin zan iya amfani da wannan don kariya da ƙarfin lantarki ko azaman mai gyara?
A: A'a, ba za a iya ba. Takardar bayanan ta bayyana a sarari cewa na'urar ba a ƙirƙira ta don aiki na juzu'i ba. Gwajin juzu'in halin yanzu (I_R) don siffanta kawai ne. Yin amfani da juzu'in ƙarfin lantarki, musamman sama da 5V, zai yiwu ya haifar da lalacewa nan take kuma maras gyara ga LED.

10. Design and Usage Case Study

Labari: Ƙirar Panel Nuna Matsayi don Router na Masana'antu
Mai ƙira yana buƙatar LED-ori masu yawa na matsayi (Wutar Lantarki, Ayyukan LAN, Haɗin WAN, Kuskuren Tsarin) a kan gaban panel na router mai ƙarami. Sarari akan babban PCB yana da iyaka. Yin amfani da LTL-M11TB1H310Q CBI shine mafita mai kyau. Ginin kusurwar dama yana ba da damar LED-ori su kasance a kan babban allon, tare da fitowar haskensu yana nufi 90 digiri zuwa bututun haske ko taga a kan gaban router. Wannan yana adana farashi da rikitaccen haɗawa na keɓantaccen PCB mai nuna alama. Mai ƙira ya ƙirƙiri ƙafar ƙafa don ginin CBI. Sun haɗa kowane LED a cikin tsarin "Circuit A": layin wadata na 5V, resistor na jerin 120Ω (wanda aka ƙidaya don ~10mA a ~3.8V_F), da LED, duk ana sarrafa su ta hanyar filin GPIO akan babban mai sarrafa. Sun ƙayyade ga masana'antunsu cewa duk LED-ori dole ne su kasance daga rukunin ƙarfin haske iri ɗaya (misali, rukunin matsakaici) don tabbatar da daidaiton haske. Umarnin haɗawa ya tilasta cewa LED-ori na reel, da aka buɗe, dole ne a yi amfani da su cikin kwanaki 7 ko a gasa su kafin aikin reflow.

11. Operational Principle

LTL-M11TB1H310Q yana aiki bisa ka'idar electroluminescence a cikin semiconductor p-n junction. Yankin aiki yana amfani da fili na InGaN (Indium Gallium Nitride). Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce kofa na kunna diode (~3.1-3.8V), electrons daga yankin n-type da ramuka daga yankin p-type ana shigar da su cikin yankin aiki. Lokacin da waɗannan masu ɗaukar caji suka sake haɗuwa, suna sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke cikin gawa na InGaN yana ƙayyade ƙarfin bandgap, wanda kai tsaye yayi daidai da tsawon zangon hasken da aka fitar—a wannan yanayin, shuɗi (~468 nm). Wannan hasken shuɗi sai ya wuce ruwan tabarau mara phosphor mai watsewa. Kayan ruwan tabarau sun ƙunshi barbashi masu watsewa waɗanda ke watse hasken, suna faɗaɗa tsarin fitarwa daga ƙunƙun katako zuwa ƙayyadadden kusurwar kallo na 40° kuma suna haifar da bayyanar gani mai laushi, mafi daidaito.

12. Technology Trends

LTL-M11TB1H310Q irin wani haske mai nuna alama na'urar gani, wakiltar wani fanni na gani mai cikakkiyar inganci da ingantaccen tsari. Ci gaba da sauye-sauye na mayar da hankali kan ƙara ƙaramin girma yayin kiyayewa ko ƙara fitowar haske, yana ba da damar ƙara yawan tsararrun alamomi. Akwai ci gaba da ƙoƙari don mafi inganci (mafi yawan mcd a kowace mA) don rage amfani da wutar lantarki a cikin na'urorin da ke amfani da baturi. Haɗawa wani salo ne, tare da wasu alamomi suna haɗa resistor mai iyakancewa halin yanzu ko ma sauƙaƙan direban IC a cikin ginin don sauƙaƙa ƙirar da'ira. Turawa don mafi faɗin yarda da muhalli yana ci gaba bayan RoHS, yana magance abubuwa kamar REACH SVHCs. Hanyoyin masana'antu kuma ana inganta su don ƙarfafa rarraba sigogi (kamar V_F da I_V binning), rage ɓarna da inganta daidaito don samar da babban adadin kai ta atomatik.