LED 3.2x1.25x1.1mm Kore 3.0V 105mW Bayani - Takardar Fasaha da Jagorar Zane

1. Bayani Akan Samfurin

Wannan LED kore na SMD an ƙera shi don nuna haske da kuma amfani a ma'aunai. Yana da katon katon 3.2mm x 1.25mm x 1.1mm (tsarin PLCC-2 na yau da kullun) kuma yana amfani da guntun kore mai inganci. LED ɗin yana da kusurwar kallo mai fadi na digiri 140, yana mai da shi dacewa don haskakawa a baya da kuma alamomi. Tare da matsakaicin ikon rarraba 105mW da ƙimar wutar lantarki 30mA, yana ba da aiki mai dogara a yanayin zafi na -40°C zuwa +85°C. Na'urar ta dace da RoHS kuma tana da matakin laushi na danshi 3 (MSL-3).

2. Sigogi na Fasaha - Bincike Mai Zurfi

2.1 Halayen Lantarki da Haske (a Ts=25°C, IF=20mA)

Ana nuna halayen LED ɗin a ƙarƙashin wutar lantarki ta gaba na 20mA. Sigogi masu mahimmanci sun haɗa da:

• Ƙarfin Wutar Lantarki ta Gaba (VF):Ana samun na'urar a cikin rukunin ƙarfin wutar lantarki da yawa: G1 (2.8-2.9V), G2 (2.9-3.0V), H1 (3.0-3.1V), H2 (3.1-3.2V), I1 (3.2-3.3V), I2 (3.3-3.4V), J1 (3.4-3.5V). VF na yau da kullun na rukuni na tsakiya (H1) shine 3.0V. Wannan rabuwa yana bawa masu zane damar zaɓar daidaitaccen ƙarfin wutar don inganta resistor ko daidaita wutar lantarki.
• Tsawon Igiyar Ruwa Mai Muhimmanci (λD):Haske mai kore yana kewaye da 520nm, tare da rukunoni D20 (517.5-520nm), E10 (520-522.5nm), E20 (522.5-525nm), F10 (525-527.5nm), F20 (527.5-530nm). Wannan iko mai ƙarfi akan tsawon igiyar ruwa yana tabbatar da daidaitaccen launi a cikin kayan samarwa.
• Haske Mai Ƙarfi (IV):An kayyade rukunoni masu haske da yawa: 1AU (260-330mcd), 1AV (330-430mcd), 1CG (430-560mcd), 1CL (560-700mcd), 1CM (700-900mcd). Babban rukuni (1CM) yana ba da haske mai yawa don aikace-aikace masu gani sosai.
• Fadin Tsakiyar Tsawon Igiyar Ruwa:30nm (yau da kullun), yana nuna launin kore mai tsafta.
• Kusurwar Kallo (2θ1/2):Digiri 140, yana ba da rufin haske mai fadi.
• Wutar Lantarki ta Baya (IR):Matsakaicin 10μA a VR=5V, yana tabbatar da ƙarancin zubewa a yanayin baya.
• Juriyar Zafi (RTHJ-S):450°C/W (yau da kullun), mahimmanci don sarrafa zafi a cikin tsarin iko mai girma.

2.2 Matsakaicin Matsayi Masu Yawa

Ba dole ne a yi amfani da LED ɗin fiye da waɗannan iyaka don hana lalacewa:

• Ikon Rarraba (Pd): 105mW
• Wutar Lantarki ta Gaba (IF): 30mA (ci gaba)
• Babban Wutar Lantarki ta Gaba (IFP): 60mA (bugu, 1/10 aiki, faɗin bugu 0.1ms)
• ESD (HBM): 1000V
• Zazzabi Mai Aiki (Topr): -40°C ~ +85°C
• Zazzabi Mai Adanawa (Tstg): -40°C ~ +85°C
• Zazzabi Mai Haɗuwa (Tj): 95°C

Dole ne a kula don tabbatar da cewa ikon rarraba bai wuce matsayi mafi girma ba. Ya kamata a rage wutar lantarki ta gaba bisa ga ainihin zazzabin haɗuwa, wanda ya kamata ya kasance ƙasa da 95°C.

3. Bayani Kan Tsarin Rarraba

Ana rarraba LED ɗin bisa ga sigogi uku: ƙarfin wutar lantarki ta gaba (VF), tsawon igiyar ruwa mai muhimmanci (λD), da haske mai ƙarfi (IV). Wannan yana bawa abokan ciniki damar yin oda na sassa da aka kayyade sosai don aiki mai daidaita a cikin tsararru ko raka'a haske na baya.

Rukunoni na Ƙarfin Wutar Lantarki:G1, G2, H1, H2, I1, I2, J1. Kowane rukuni yana rufe kewayon 0.1V, yana ba da damar daidaita wutar lantarki daidai.

Rukunoni na Tsawon Igiyar Ruwa:D20, E10, E20, F10, F20. Kowane rukuni yana rufe 2.5nm, yana tabbatar da daidaiton launi a cikin tsari na samarwa.

Rukunoni na Haske:1AU, 1AV, 1CG, 1CL, 1CM. Waɗannan rukunoni sun fito daga 260mcd zuwa 900mcd, suna rufe kewayon buƙatun haske mai fadi.

4. Binciken Lanƙwasa Aiki

4.1 Ƙarfin Wutar Lantarki ta Gaba vs. Wutar Lantarki ta Gaba

Lanƙwasa I-V na yau da kullun yana nuna cewa a IF=20mA, VF yana kusan 3.0V. Yayin da wutar lantarki ke ƙaruwa, ƙarfin wutar yana tashi ba daidai ba. A wutar lantarki mai girma, sarrafa zafi yana da muhimmanci saboda zafi da kansa.

4.2 Wutar Lantarki ta Gaba vs. Haske Mai Dangantaka

Haske mai dangantaka yana ƙaruwa da wutar lantarki ta gaba amma ba daidai ba saboda zafin haɗuwa. A IF=30mA, haske ya kai kimanin sau 1.5 na wanda yake a IF=20mA (bisa lanƙwasa na yau da kullun).

4.3 Zazzabi na Filin vs. Haske Mai Dangantaka da Wutar Lantarki ta Gaba

Yayin da LED ɗin ke yin zafi, haske mai dangantaka yana raguwa. Juriyar zafi na 450°C/W yana nufin cewa a 20mA, yawan zazzabin haɗuwa sama da yanayi yana da iyaka sai dai a matsakaicin wutar lantarki da zazzabin yanayi, haɗuwa na iya kusantar iyakar 95°C, yana buƙatar ɗaukar zafi ko rage yawan wutar.

4.4 Wutar Lantarki ta Gaba vs. Tsawon Igiyar Ruwa Mai Muhimmanci

Tsawon igiyar ruwa mai muhimmanci yana canzawa da wutar lantarki. Yawanci, LEDs kore suna nuna ɗan ƙaramin motsi zuwa shuɗi a wutar lantarki mai girma. Canjin yana cikin 'yan nanometers, wanda abin karɓa ne ga yawancin aikace-aikace na alamomi.

4.5 Haske Mai Dangantaka vs. Tsawon Igiyar Ruwa

Rarraba haske yana nuna guda ɗaya kololuwa a kewaye da 520nm tare da rabin faɗin 30nm, yana tabbatar da haske mai kore mai tsafta. Babu wasu kololuwa na biyu.

4.6 Tsarin Haske

LED ɗin yana fitar da haske mai kama da lambertian, tare da haske yana raguwa zuwa rabi a 70° daga ma'aunin gani. Wannan katako mai fadi ya sa ya zama manufa don haskakawa a baya ko alamomi.

5. Bayani Kan Injiniyoyi da Marufi

5.1 Girman Marufi

LED ɗin yana cikin marufi mai girman 3.20mm x 1.25mm x 1.10mm. Duba daga sama yana nuna siffar rectangular tare da wuraren haɗi biyu (anode da cathode) kamar yadda aka yiwa alama. Duba daga ƙasa yana nuna tsarin kushin: kushin 1.20mm x 0.60mm don tashar 1 (cathode) da kushin 1.20mm x 0.45mm don tashar 2 (anode). Matsayin kushin siyar da aka ba da shawara shine 5.00mm x 2.00mm don kyakkyawan ɗaukar zafi da kwanciyar hankali na injiniyoyi. Ana nuna polarity ta alama a kan marufi.

5.2 Alamar Polarity da Tsarin Siyarwa

Ana nuna alamar polarity a cikin Fig.1-4. Ana nuna cathode ta wani yanki ko digo. Matsayin siyar da aka ba da shawara (Fig.1-5) yana tabbatar da kyakkyawar haɗin zafi da lantarki. Duk girman suna da haƙuri na ±0.2mm sai dai in an faɗi.

6. Jagororin Siyarwa da Haɗuwa

6.1 Tsarin Siyarwa na SMT Reflow

Tsarin reflow na yau da kullun (bisa JEDEC J-STD-020) ya haɗa da:

• Preheat: 150°C zuwa 200°C na daƙiƙa 60-120
• Lokaci sama da 217°C (TL): daƙiƙa 60-150
• Matsakaicin zazzabi (TP): 260°C, tare da matsakaicin daƙiƙa 10 sama da 255°C
• Sanyaya: 6°C/s max
• Jimlar lokaci daga 25°C zuwa kololuwa: matsakaicin minti 8

Ba dole ba ne a yi reflow siyarwa fiye da sau biyu. Idan fiye da sa'o'i 24 sun wuce tsakanin juyi, LED ɗin na iya ɗaukar danshi kuma ya lalace. Ana ba da shawarar gasa a 60±5°C na sa'o'i 24 idan yanayin adanawa ya wuce.

6.2 Siyarwa da sakewa da hannu

Ya kamata a iyakance siyarwa da hannu tare da ƙarfen siyarwa zuwa 300°C na ƙasa da daƙiƙa 3. Ana ba da izinin sakewa ɗaya kawai. Don sakewa, ana ba da shawarar ƙarfen siyarwa mai kai biyu don guje wa damuwa na zafi.

6.3 Kariya Lokacin Kulawa

Ka guji hawa akan PCBs masu karkace. Kada a yi amfani da ƙarfin injiniyoyi yayin ko bayan siyarwa. Ba a yarda da saurin sanyaya bayan siyarwa ba. LED ɗin yana da hankali ga ESD (Class 1, 1000V HBM), don haka dole ne a yi amfani da kariya mai dacewa na ESD yayin kulawa da haɗuwa.

7. Bayani Kan Marufi da Oda

7.1 Marufi na Tape da Reel

Ana ba da LEDs a cikin tape mai ɗauka tare da guda 3000 a kowane reel (diameter 7-inch). Girman tape: faɗi 8.00mm, nisa 4.00mm. Reel yana da diameter 178mm, hub diameter 60mm, da rami mai juyi 13.0mm. Tambarin ya haɗa da lambar sashi, lambar spec, lambar laƙabi, lambar bin (don flux, chromaticity, ƙarfin wutar lantarki, tsawon igiyar ruwa), yawa, da lambar kwanan wata.

7.2 Jakar Danshi da Akwati

Kowane reel an rufe shi a cikin jakar kariya daga danshi tare da desiccant da katin nuna danshi. Ana shirya jakar a cikin akwati na kwali don jigilar kaya. Yanayin adanawa: kafin buɗe jakar, adana a ≤30°C da ≤75% RH har zuwa shekara 1. Bayan buɗewa, yi amfani da shi cikin sa'o'i 168 a ≤30°C da ≤60% RH. Ana buƙatar gasa a 60±5°C na ≥24 sa'o'i idan mai nuna danshi ya nuna fallasa ko kuma lokacin adanawa ya wuce.

8. Shawarwarin Aikace-aikace

8.1 Aikace-aikace na Yau da Kullun

• Alamomi na gani akan na'urorin lantarki (misali, LEDs na matsayi, haske na maɓallin turawa)
• Hasken maɓalli da alamomi a cikin motoci ko samfuran mabukaci
• Hasken baya na alamomi da nuni gabaɗaya
• Haske na ado inda ake buƙatar ƙaramin girma da kusurwa mai fadi

8.2 La'akari Don Zane

• Iyakance Wutar Lantarki:Koyaushe yi amfani da resistor a jere don iyakance wutar lantarki zuwa ≤30mA. Ba tare da resistor ba, canje-canje kaɗan na ƙarfin wutar na iya haifar da manyan canje-canje na wutar lantarki da lalacewa.
• Sarrafa Zafi:Don matsakaicin wutar lantarki ko zazzabin yanayi mai girma, yi la'akari da yankin jan ƙarfe na PCB don ɗaukar zafi. Juriyar zafi na 450°C/W yana buƙatar tsarin da kyau don kiyaye zazzabin haɗuwa ƙasa da 95°C.
• Kariyar Muhalli:Ka guji fallasa ga mahaɗan sulfur (>100PPM), bromine (>900PPM), chlorine (>900PPM), da VOCs waɗanda za su iya fitowa daga mannen ko kayan tufa. Waɗannan na iya haifar da canza launi da raguwar fitar haske.
• Aiki A Layi Daya:Idan ana amfani da LEDs da yawa a layi daya, kowane yana buƙatar resistor na jere don daidaita wutar lantarki.

9. Kwatanta Fasaha

Idan aka kwatanta da LEDs kore na yau da kullun a cikin marufai irin PLCC-2, wannan na'urar tana ba da kusurwar kallo mai fadi (140°) da rukunoni masu haske da yawa har zuwa 900mcd. Rarrabuwar tsawon igiyar ruwa mai ƙarfi (±2.5nm a kowane rukuni) yana tabbatar da daidaiton launi mai kyau, wanda ke da mahimmanci ga tarin LEDs da yawa. Raɓar juriyar zafi na 450°C/W (yau da kullun) ya dace don marufi 3.2x1.25mm, yana ba da damar ƙarin wutar lantarki idan an ɗauki zafi da kyau. Bugu da kari, matakin MSL-3 da bin dokokin RoHS sun sa ya dace da haɗuwa ta atomatik na SMT.

10. Tambayoyin da Aka Yi Yawa

Q1: Menene matsakaicin wutar lantarki da aka ba da shawara don wannan LED?
A: Wutar gwaji na yau da kullun shine 20mA, yana ba da daidaito tsakanin haske da sarari na zafi. Matsakaicin wutar lantarki mai ci gaba shine 30mA, amma dole ne a kiyaye zazzabin haɗuwa a ƙasa da 95°C.

Q2: Zan iya amfani da wannan LED a aikace-aikacen pulse-width modulation (PWM)?
A: Ee, babban wutar lantarki na iya kaiwa 60mA tare da aikin 1/10 da faɗin bugu 0.1ms. Don PWM na aiki mai girma, tabbatar da matsakaicin wutar lantarki ≤30mA.

Q3: Ta yaya zan zaɓi daidaitaccen rukuni na ƙarfin wutar lantarki don zane na?
A: Idan kana buƙatar kewayon ƙarfin wutar lantarki mai ƙarfi don kwatankwacin wutar lantarki ko haɗin jeri, zaɓi takamaiman rukuni (misali, H1 don 3.0-3.1V). Don amfani gabaɗaya, 3.0V (H1) na yau da kullun ana ba da shawara.

Q4: Menene rayuwar adanawa bayan buɗe jakar kariya daga danshi?
A: Sa'o'i 168 a ≤30°C da ≤60% RH. Idan ba a yi amfani da shi a cikin wannan lokaci ba, gasa a 60±5°C na akalla sa'o'i 24 kafin reflow.

Q5: Zan iya amfani da wannan LED a waje?
A: Kewayon zazzabin aiki shine -40°C zuwa +85°C, wanda ya dace da aikace-aikace da yawa a waje. Koyaya, na'urar ba ta da darajar fallasa ga ruwa kai tsaye; ana iya buƙatar ƙarin kariya.

11. Misalin Zane Mai Aiki

Misali: Hasken baya na maɓallin turawa tare da LEDs biyu a layi daya.

• Haske da ake so: kusan 500mcd a kowane LED (amfani da bin 1CG ko 1CL).
• Ƙarfin wutar lantarki: 5V DC.
• Ƙarfin wutar lantarki ta gaba na LED (yau da kullun): 3.0V a 20mA.
• Resistor a jere: R = (5V - 3.0V) / 0.04A (LEDs biyu a layi daya, kowanne 20mA) = 50Ω. Zaɓi 51Ω, resistor 1/4W.
• Duban zafi: A zazzabin yanayi 25°C, yawan zazzabin haɗuwa = 20mA * 3.0V * 450°C/W = 0.027W * 450 = 12.15°C. Zazzabin haɗuwa = 37.15°C, ƙasa da 95°C sosai. Ko a zazzabin yanayi 85°C, haɗuwa = 97.15°C, ɗan ƙara; yi la'akari da amfani da babban yankin kushin don rage juriyar zafi ko rage wutar lantarki zuwa 18mA.

12. Ka'idodin Aiki

LED wani diode ne na haɗin p-n da aka yi daga gallium nitride (GaN) ko wasu kayan haɗin III-V masu haske waɗanda ke fitar da haske kore lokacin da aka yi musu ƙarfin wutar lantarki ta gaba. Bangap na makamashi yana ƙayyade tsawon igiyar ruwa. A wannan yanayin, tsawon igiyar ruwa mai muhimmanci a kewaye da 520nm yana daidai da bangap na kimanin 2.38eV. Na'urar tana cikin silicone mai haske ko epoxy wanda ke ba da fitar haske da kariya ta injiniyoyi. An samu kusurwar kallo mai fadi ta hanyar yin amfani da kayan da ke warwatsu da haske.

13. Halayen Ci Gaba

LEDs kore suna ci gaba da inganta inganci (lm/W) saboda kyakkyawan dabarun epitaxial da zane na guntun. Hanyoyin gaba don LEDs SMD a wannan girman sun haɗa da ƙarin ingancin haske, rage juriyar zafi, da rukunoni masu ƙarfi na tsawon igiyar ruwa don inganta haɗakar launi a aikace-aikacen RGB. Bugu da kari, haɗa guntuwar kariya na ESD a cikin marufi ya zama ruwan dare don inganta juriya. Bukatar ƙananan LEDs masu haske don na'urori masu sawa da IoT na haifar da ƙarin sababbin abubuwa a cikin marufi da sarrafa zafi.