Takardar Bayani na Fasaha na LTL-M11TG1H310Q - Mai Nuna LED Kore a Tsaye - 525nm Kore - 3.8V - 80mW - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

LTL-M11TG1H310Q wani sashi ne na Mai Nuna Allon Kewayawa (CBI) wanda aka ƙera don hawa ta hanyar Surface Mount. Ya ƙunshi fitilar LED kore da aka haɗa cikin garkuwa baƙi mai kusurwa madaidaiciya (gida). Wannan ƙira an yi niyya ne don aikace-aikacen da ke buƙatar masu nuni masu fitar da haske a gefe akan allunan kewayawa (PCBs). Samfurin yana da siffar ƙirar da za a iya tara juna, wanda ke sauƙaƙa hawa kuma yana ba da damar ƙirar layukan masu nuni a tsaye ko a kwance.

1.1 Siffofi da Fa'idodi na Asali

• Daidaitaccen Fasahar Haɗawa a Sama (SMT):An ƙera shi don sarrafa ɗauka da sanyawa ta atomatik da kuma tsarin gyaɗa mai sake dawowa, yana haɓaka ingancin masana'antu.
• Ƙarfafa Bambanci:Garkuwar filastik baƙar fata tana ba da tushe mai bambanci sosai, yana inganta ganuwa da kuma haske da ake gani na LED mai haske.
• Ingantacciyar Aiki:Yana ba da ƙarancin amfani da wutar lantarki yayin da yake ba da isasshen ƙarfin haske don dalilai na nuni.
• Daidaitaccen Muhalli:Wannan samfurin ba shi da gubar kuma ya yi daidai da umarnin RoHS (Ƙuntata Abubuwa Masu Hadari).
• Ƙirar Gani:Yana amfani da guntu na semiconductor kore na InGaN (Indium Gallium Nitride). Ana fitar da haske ta hanyar ruwan tabarau mai watsewa fari, wanda ke taimakawa wajen watse hasken don samun tsarin kallo mai faɗi, mafi daidaito.
• Amincewa:Abubuwan da aka yi amfani da su suna ƙarfafa zuwa matakin 3 na JEDEC Moisture Sensitivity, wanda ke nuna wani matakin ƙarfi ga lalacewar da ke haifar da danshi yayin gyaɗa.

1.2 Aikace-aikace da Kasuwanni da Ake Nufa

Wannan mai nuni ya dace da kewayon kayan lantarki inda ake buƙatar nuna matsayi. Sashen aikace-aikacen farko sun haɗa da:

• Kayan Kwamfuta:Mai nuna wutar lantarki, ayyukan faifai, ko matsayin hanyar sadarwa akan allunan uwa, sabar, ko na gefe.
• Na'urorin Sadarwa:Mai nuna ƙarfin siginar, aikin haɗin kai, ko masu nuna yanayi a cikin na'urorin hanyar sadarwa, masu canzawa, da na'urorin canza siginar.
• Kayan Lantarki na Masu Amfani:Fitilolin jiran aiki, caji, ko matsayin aiki a cikin kayan aikin gida, kayan sauti/ bidiyo, da na'urorin sarrafa gida.
• Kayan Aikin Masana'antu:Mai nuna matsayin na'ura, nuna kuskure, ko fitilolin yanayin aiki a cikin allunan sarrafawa da kayan aikin aunawa.

2. Zurfin Bincike na Sigogi na Fasaha

2.1 Matsakaicin Matsakaicin Ƙimar

Waɗannan ƙimar suna bayyana iyakokin da za su iya haifar da lalacewar dindindin ga na'urar. Ba a tabbatar da aiki a ƙarƙashin waɗannan sharuɗɗan ba.

• Rushewar Wutar Lantarki (Pd):80 mW. Wannan shine matsakaicin adadin wutar lantarki da na'urar za ta iya watsar da ita azaman zafi ba tare da lalacewa ba.
• Matsakaicin Halin Gaba na Gaba (I_FP):100 mA. Ana ba da izinin wannan matsakaicin halin yanzu kawai a ƙarƙashin yanayin bugun jini (duty cycle ≤ 10%, faɗin bugun ≤ 0.1ms).
• Halin Gaba na DC (I_F):20 mA. Wannan shine matsakaicin ci gaba na halin yanzu na gaba da aka ba da shawarar don aiki mai aminci.
• Kewayon Yanayin Zafi na Aiki (T_opr):-40°C zuwa +85°C. Kewayon yanayin zafi wanda aka ƙera na'urar don yin aiki a cikinsa.
• Kewayon Yanayin Zafi na Ajiya (T_stg):-40°C zuwa +100°C.
• Zafin Gyaɗa:Yana jure 260°C na matsakaicin dakika 5, wanda ya zama ruwan dare ga bayanan sake dawowa na gyaɗa maras gubar.

2.2 Halaye na Lantarki da na Gani

Waɗannan sune sigogi na aiki na yau da kullun da aka auna a yanayin zafi na muhalli (T_A) na 25°C a ƙarƙashin ƙayyadaddun sharuɗɗan gwaji.

• Ƙarfin Hasken (I_V):Millicandelas 29 (mcd) mafi ƙanƙanta a halin yanzu na gaba (I_F) na 10 mA. Wannan yana ƙididdige hasken da ake gani kamar yadda na'urar aunawa ta tantance ta tace don dacewa da amsawar gani na idon ɗan adam.
• Kusurwar Kallo (2θ_1/2):Digiri 40. Wannan shine cikakken kusurwar da ƙarfin haske ya faɗi zuwa rabin ƙimarsa da aka auna akan axis na tsakiya. Kusurwar digiri 40 tana nuna katakon haske mai matsakaicin maida hankali.
• Matsakaicin Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon 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Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Ts�_P):Nanometers 523 (nm). Wannan shine tsawon zango wanda fitarwar ƙarfin bakan ke mafi girma.
• Matsakaicin Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon 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Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsawon Tsaw_d):Ranges from 518 nm to 536 nm, with a typical value of 525 nm. This is the single wavelength perceived by the human eye that defines the color of the light, derived from the CIE chromaticity diagram.
• Spectral Line Half-Width (Δλ): nm. This indicates the spectral purity; a smaller value means a more monochromatic light. 25 nm is typical for a standard green LED.
• Forward Voltage (V_F):Typically 3.8V, with a maximum of 3.8V at I_F= 10 mA. This is the voltage drop across the LED when operating.
• Reverse Current (I_R): μA maximum when a reverse voltage (V_R) of 5V is applied.Important:The device is not designed for reverse-bias operation; this parameter is for leakage current testing only.

. Performance Curve Analysis

The datasheet references typical characteristic curves which are essential for circuit design. While the specific graphs are not reproduced in text, their implications are analyzed below.

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

This curve shows the exponential relationship between current and voltage for a semiconductor diode. For designers, the key takeaway is the typical V_Fof 3.8V at 10mA. This curve is crucial for selecting an appropriate current-limiting resistor. The voltage increases non-linearly with current; operating significantly above 20mA will cause V_Fto rise sharply, leading to excessive power dissipation and potential damage.

.2 Luminous Intensity vs. Forward Current

This graph typically shows that light output (I_V) increases approximately linearly with forward current (I_F) within the recommended operating range. However, efficiency (light output per unit of electrical power) may decrease at very high currents due to increased heat generation. Operating at the typical 10mA provides a good balance of brightness and efficiency.

.3 Luminous Intensity vs. Ambient Temperature

The light output of an LED decreases as the junction temperature increases. This curve is vital for applications operating in high-temperature environments. A designer must derate the expected luminous intensity if the device will be used near its maximum operating temperature of 85°C.

.4 Spectral Distribution

The referenced spectral graph would show a bell-shaped curve centered around the peak wavelength of 523 nm with a half-width of 25 nm. This confirms the green color emission.

. Mechanical and Packaging Information

.1 Outline Dimensions and Notes

The mechanical drawing provides critical dimensions for PCB footprint design and clearance checks. Key notes from the datasheet include:

• All dimensions are in millimeters (with inch equivalents).
• A general tolerance of ±0.25mm (±0.010\") applies unless a specific tolerance is stated.
• The holder/housing material is black plastic.
• The integrated LED emits green light (525nm dominant wavelength) through a white diffused lens.

Designer Note:Always refer to the latest dimensional drawing from the manufacturer for PCB layout. The right-angle design means the light emits parallel to the PCB surface, which is ideal for panel-mounted applications.

.2 Polarity Identification

For surface-mount devices, polarity is typically indicated by a marking on the component body or an asymmetrical shape. The designer must consult the footprint diagram to identify the cathode and anode pads on the PCB layout to ensure correct orientation during assembly.

. Soldering and Assembly Guidelines

.1 Storage and Handling

• Sealed Package:Store at ≤30°C and ≤70% RH. Use within one year of the bag seal date.
• Opened Package:For components removed from the moisture barrier bag, the storage environment must not exceed 30°C and 60% RH.
• Floor Life:It is recommended to complete the IR reflow process within 168 hours (7 days) after opening the original packaging.
• Extended Storage/Baking:If exposure exceeds 168 hours, the components must be baked at approximately 60°C for at least 48 hours before soldering to remove absorbed moisture and prevent \"popcorning\" during reflow.

.2 Cleaning

If cleaning is necessary after soldering, use alcohol-based solvents like isopropyl alcohol. Avoid using aggressive or unknown chemical cleaners that may damage the plastic housing or lens.

.3 Soldering Process Parameters

Reflow Soldering (Recommended Process):

• Pre-heat:–200°C for up to 120 seconds maximum.
• Peak Temperature:°C maximum at the component leads.
• Time Above Liquidus (TAL): seconds maximum (for lead-free solder).
• Number of Cycles:The reflow process must not be performed more than two times.

Hand Soldering (if necessary):

• Iron Temperature:°C maximum.
• Contact Time: seconds maximum per solder joint.

Critical Caution:Do not apply any mechanical stress to the leads or housing while the LED is at high temperature during soldering, as this can cause internal damage.

. Packaging and Ordering Information

.1 Tape and Reel Specifications

• Carrier Tape:Made of black conductive polystyrene alloy, 0.40mm thick.
• Reel Size:Standard 13-inch (330mm) diameter reel.
• Quantity per Reel:,400 pieces.

.2 Carton Packaging

• Each reel is packaged with a desiccant and a humidity indicator card inside a Moisture Barrier Bag (MBB).
• Three MBBs are packed into one inner carton (total 4,200 pieces).
• Ten inner cartons are packed into one outer shipping carton (total 42,000 pieces).

. Application Design and Circuit Considerations

.1 Drive Circuit Design

LEDs are current-driven devices. To ensure consistent brightness and longevity, they must be driven with a constant current or a voltage source with a series current-limiting resistor.

Recommended Circuit (Circuit A):Use a series resistor for each LED. The resistor value (R) is calculated using Ohm's Law: R = (V_supply- V_F) / I_F. For a 5V supply, targeting I_F=10mA and using V_F=3.8V: R = (5V - 3.8V) / 0.01A = 120 Ω. A standard 120Ω resistor would be suitable.

Circuit to Avoid (Circuit B):Connecting multiple LEDs directly in parallel from a single voltage source with one shared current-limiting resistor is not recommended. Small variations in the forward voltage (V_F) characteristic between individual LEDs will cause uneven current distribution, leading to significant differences in brightness and potentially overstressing one LED.

.2 Electrostatic Discharge (ESD) Protection

LEDs are sensitive to electrostatic discharge. Standard ESD precautions must be observed during handling and assembly:

• Use grounded workstations and wrist straps.
• Store and transport components in ESD-safe packaging.
• Avoid touching the component leads directly.

.3 Thermal Management

While the power dissipation is low (80mW max), proper thermal design extends lifetime and maintains light output. Ensure adequate spacing between components on the PCB for airflow. Avoid placing the LED near other significant heat sources. Operating at or below the typical current (10mA) rather than the absolute maximum (20mA) will minimize temperature rise.

. Frequently Asked Questions (FAQ)

.1 What is the purpose of the white diffused lens?

The white diffused lens scatters the light from the small, bright green chip. This creates a more uniform, wider viewing angle (40 degrees) and softens the appearance of the light source, making it look like a solid illuminated area rather than a pinpoint, which is generally more desirable for status indicators.

.2 Can I drive this LED with a 3.3V supply?

Possibly, but with caution. The typical forward voltage is 3.8V. At 3.3V, the LED may not turn on at all, or it will be very dim because the applied voltage is below the required V_Fthreshold. A boost converter or a higher supply voltage (like 5V) with a series resistor is the recommended approach.

.3 How do I interpret the luminous intensity value of 29 mcd?

Millicandela (mcd) is a unit of luminous intensity, which is a measure of how bright a light source appears in a specific direction. 29 mcd is a moderate brightness suitable for direct viewing in typical indoor electronic equipment. For comparison, a power indicator on a laptop might be in the range of 20-100 mcd.

.4 Is the housing material conductive?

The carrier tape is specified as \"black conductive polystyrene alloy,\" which is for anti-static purposes during automated handling. The device housing itself is standard black plastic and is not electrically conductive.