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Bayanin Fasaha na LED na SMD LTST-C21TGKT - 3.2x1.6x1.1mm - 2.8-3.8V - 76mW - Ruwa Bayyananne Lens Koriya - Takardar Fasaha ta Hausa

Cikakken bayanin fasaha na LED na SMD LTST-C21TGKT. Yana da chip koriya mai haske sosai na InGaN, tsarin hawa na baya, bin ka'idojin RoHS, da cikakkun bayanai na lantarki da na gani.
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Gida » Takaddun » Bayanin Fasaha na LED na SMD LTST-C21TGKT - 3.2x1.6x1.1mm - 2.8-3.8V - 76mW - Ruwa Bayyananne Lens Koriya - Takardar Fasaha ta Hausa

Teburin Abubuwan Ciki

1. Bayyani Game da Samfur

Wannan takarda tana ba da cikakkun bayanai na fasaha na LTST-C21TGKT, fitilar LED na na'urar hawa ta saman (SMD). Wannan sashi na cikin dangin ƙananan LED da aka ƙera musamman don haɗa allon da'ira da aka buga (PCB) ta atomatik da aikace-aikacen da sarari ya zama matsalar gaske. Tsarin ƙanƙanta da kuma daidaitaccen marufi sun sa ya dace sosai don haɗawa cikin hanyoyin masana'antar lantarki na zamani.

Yankunan aikace-aikace na wannan LED suna da faɗi, sun haɗa da kayan aikin sadarwa, na'urori na sarrafa ofis, na'urorin gida iri-iri, da tsarin sarrafa masana'antu. Ayyukansa na farko sun haɗa da zama mai nuna matsayi, samar da hasken baya don maɓallai da madannai, ba da damar ƙananan nuni, da kuma aiki a matsayin mai haske na sigina ko alama a cikin alamun cikin gida.

1.1 Muhimman Siffofi

2. Girman Marufi da Tsari

LTST-C21TGKT yana cikin ƙanƙantaccen marufin SMD na daidaitaccen masana'antu. Lens ɗin yana bayyana kamar ruwa mai tsabta, yayin da tushen haske da kansa shine mai fitar da koriya na tushen InGaN. Madaidaicin girman jikin marufin ya kai kusan 3.2mm tsawon, 1.6mm faɗi, da 1.1mm tsayi, ko da yake masu ƙira dole ne koyaushe su koma ga cikakken zanen girma don mahimmin ƙira na inji. Duk ƙayyadaddun girmansu suna cikin milimita, tare da daidaitaccen jurewa na ±0.1mm sai dai idan an lura da hakan akan zanen.

3. Ƙimar da Halaye

Fahimtar cikakkun ƙimar iyaka yana da mahimmanci don tabbatar da aiki mai aminci da kuma hana lalacewar na'urar da wuri. Waɗannan ƙimar suna ƙayyade iyakokin da wuce gona da iri na iya haifar da lalacewa ta dindindin.

3.1 Cikakkun Ƙimar Iyaka (Ta=25°C)

3.2 Halayen Lantarki da na Gani (Ta=25°C)

Waɗannan sigogi suna bayyana madaidaicin aikin LED a ƙarƙashin daidaitattun yanayin gwaji.

.3 Important Notes on Characteristics

. Bin Ranking System

To ensure consistency in applications, LEDs are sorted (binned) based on key performance parameters. The LTST-C21TGKT uses a two-dimensional binning system.

.1 Luminous Intensity (IV) Bins

Green color, measured in millicandelas (mcd) at 20mA. Tolerance within each bin is ±15%.

.2 Hue (Dominant Wavelength) Bins

Green color, measured in nanometers (nm) at 20mA. Tolerance for each bin is ±1 nm.

A full part number typically includes these bin codes to specify the exact performance grade.

. Typical Performance Curves

Graphical data provides deeper insight into device behavior under varying conditions. While specific curve plots are not rendered here, the datasheet typically includes the following essential graphs for design analysis:

. Assembly and Handling Guidelines

.1 Recommended PCB Attachment Pad Layout

A suggested land pattern (footprint) for the PCB is provided to ensure proper solder joint formation, mechanical stability, and thermal management. This pattern typically includes pad dimensions and spacing slightly larger than the device terminals to facilitate good solder wetting and fillet formation.

.2 Soldering Process

The device is qualified for lead-free (Pb-free) soldering processes. A suggested IR reflow profile is provided, adhering to JEDEC standards. Key parameters include:

For manual rework with a soldering iron, the tip temperature should not exceed 300°C, and contact time should be limited to 3 seconds maximum for a single repair event only. It is critical to follow the solder paste manufacturer's guidelines and characterize the profile for the specific PCB design.

.3 Cleaning

If post-solder cleaning is required, only specified alcohol-based solvents like ethyl alcohol or isopropyl alcohol should be used. The LED should be immersed at normal temperature for less than one minute. Unspecified chemical cleaners may damage the epoxy lens or package.

.4 Storage and Moisture Sensitivity

The LEDs are packaged in a moisture-barrier bag with desiccant. While sealed, they should be stored at ≤ 30°C and ≤ 90% Relative Humidity (RH) and used within one year. Once the original bag is opened, the components are rated at Moisture Sensitivity Level (MSL) 3. This means they must be subjected to IR reflow soldering within one week of exposure to factory ambient conditions (≤ 30°C / 60% RH). For storage beyond one week outside the original bag, they must be stored in a sealed container with desiccant or in a nitrogen ambient. Components exposed for more than one week require a bake-out at approximately 60°C for at least 20 hours before assembly to remove absorbed moisture and prevent \"popcorning\" damage during reflow.

. Packaging Specifications

The product is supplied in a tape-and-reel format compatible with automated assembly equipment.

. Application Notes and Design Considerations

.1 Drive Method

An LED is a current-controlled device. To ensure consistent and stable luminous intensity, color, and longevity, it must be driven by a constant current source, not a constant voltage source. The forward voltage (VF) has a tolerance and a negative temperature coefficient (it decreases as temperature increases). Using a simple series resistor with a voltage supply is common for basic indicators, but for applications requiring stable brightness, a dedicated LED driver IC or a more sophisticated current-regulating circuit is recommended. The design must respect the absolute maximum ratings for continuous (20mA) and pulsed (100mA) current.

.2 Thermal Management

Although the power dissipation is relatively low at 76mW, effective thermal management is still important for maintaining performance and reliability, especially in high ambient temperatures or when driven near maximum ratings. The PCB copper pads act as the primary heat sink. Following the recommended pad layout, using thermal vias under the pad (if applicable to the package), and ensuring adequate airflow contribute to keeping the LED junction temperature within safe limits, thereby preserving luminous output and operational life.

.3 Optical Integration

The 70-degree viewing angle provides a wide, diffuse emission pattern suitable for area illumination and status indicators. For applications requiring a more focused beam, secondary optics such as lenses or light guides may be necessary. The water-clear lens allows the true chip color (green) to be emitted without tinting.

.4 Polarity and Orientation

As a diode, the LED has an anode (+) and cathode (-). The package includes a polarity indicator, typically a notch, a green dot, or a cut corner on the cathode side. Correct orientation on the PCB is essential for the device to illuminate. The reverse mount design may have specific implications for how light is extracted from the package, which should be considered in the optical design.

. Reliability and Application Scope

The LEDs described are intended for use in standard commercial and industrial electronic equipment, including office automation, communications, network systems, and home appliances. For applications requiring exceptional reliability where failure could jeopardize safety, health, or life—such as in aviation, transportation, medical, or critical safety systems—special qualification and consultation are necessary prior to design-in. The provided cautions on storage, handling, and soldering are fundamental to achieving the expected reliability in the intended applications.

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.