SMT LED Yellow-Green 1.6x0.8x0.7mm - Ƙarfin Wutar Lantarki 1.8-2.4V - Ƙarfi 72mW - Bayanin Fasaha

1. Bayanin Samfurin

Wannan bayanin yana bayyana LED mai haske koren-rawayu wanda aka saka a saman, mai girman shiryayye 1.6 mm × 0.8 mm × 0.7 mm. An yi LED ta amfani da guntu koren-rawayu, wanda ke ba da tsawon igiyar haske daga 567.5 nm zuwa 575.0 nm. An tsara shi don alamun gani na yau da kullun, nunin maɓalli da alamomi, da sauran amfani na gama gari. LED tana da kusurwar gani mai faɗi sosai na 140°, wanda ya sa ta dace da aikace-aikacen da ake buƙatar rarraba haske daidai. Tana bin ka'idojin RoHS kuma tana da matakin laushi na 3, yana tabbatar da dacewa da tsarin haɗa SMT na yau da kullun da sake narkewa.

1.1 Muhimman Siffofi

• Kusurwar gani mai faɗi sosai (2θ1/2 = 140°) don rarraba haske mai yawa.
• Ya dace da duk tsarin haɗa SMT da narkewa.
• Matakin laushi: Mataki 3 (MSL3).
• Ya bi RoHS, mai dacewa da muhalli.

1.2 Aikace-aikace

• Alamun gani (misali, fitilun hali, hasken baya).
• Maɓalli, alamomi, da nunin bayanai.
• Hasken gama gari da ishara.

2. Binciken Cikakken Sigogin Fasaha

An bayyana siffofin lantarki da na gani a yanayin zafi na Ts = 25 °C da wutar gaba ta 20 mA, sai dai in an faɗi akasin haka.

2.1 Siffofin Lantarki da Ganin (Tebur 1-1)

• Ƙarfin Wutar Lantarki (VF):An raba LED zuwa rukunoni shida na ƙarfin wutar: B1 (1.8-1.9 V), B2 (1.9-2.0 V), C1 (2.0-2.1 V), C2 (2.1-2.2 V), D1 (2.2-2.3 V), D2 (2.3-2.4 V). Yawanci, ƙarfin wutar yana daga 1.8 V zuwa 2.4 V.
• Tsawon Igiyar Haske (λD):An raba shi zuwa rukunoni uku: B20 (567.5-570.0 nm), C10 (570.0-572.5 nm), C20 (572.5-575.0 nm). Yawan nisa na rabin igiya (tsawon igiyar rabin bandwidth) shine 15 nm.
• Ƙarfin Haske (IV):An raba shi zuwa rukunoni huɗu: B00 (12-18 mcd), C00 (18-28 mcd), D00 (28-43 mcd), E00 (43-65 mcd). An yi ma'auni a 20 mA.
• Kusurwar Gani:2θ1/2 = 140° na yau da kullun.
• Ƙarfin Koma baya (IR):A VR = 5 V, mafi girma 10 μA.
• Juriya na Zafi (RTHJ-S):Mafi girma 450 °C/W (daga haɗin gwiwa zuwa wurin narkewa).

2.2 Matsakaicin Matsayin da Ba Za a Wuce Ba (Tebur 1-2)

Wadannan iyakoki ba za a iya wuce su ba ko da na ɗan lokaci. Yanayin bugun jini: 1/10 na zagaye, faɗin bugun jini 0.1 ms.

3. Tsarin Rarrabuwa

An rarraba LED zuwa rukunoni da yawa don tabbatar da aiki daidai ga abokan ciniki:

• Rukunonin Wutar Lantarki:B1, B2, C1, C2, D1, D2 – wanda ya rufe daga 1.8 V zuwa 2.4 V a matakan 0.1 V.
• Rukunonin Tsawon Igiya:B20, C10, C20 – wanda ya rufe daga 567.5 nm zuwa 575.0 nm a matakan 2.5 nm.
• Rukunonin Ƙarfin Haske:B00, C00, D00, E00 – wanda ya rufe daga 12 mcd zuwa 65 mcd.

Wannan rarrabuwa yana bawa abokan ciniki damar zaɓar LED masu sarrafa aikin lantarki da na gani daidai da bukatunsu na musamman.

4. Binciken Zane-zanen Aiki

Zane-zanen siffofin gani na yau da kullun (Hoto 1-6 zuwa Hoto 1-12) suna ba da haske game da halayen LED a ƙarƙashin yanayi daban-daban:

• Ƙarfin Wutar Lantarki vs. Wutar Gaba (Hoto 1-6):Yana nuna dangantakar mashahuri; ƙarfin wutar yana ƙaruwa da wutar.
• Wutar Gaba vs. Ƙarfin Haske (Hoto 1-7):Ƙarfin haske yana ƙaruwa da wutar gaba, kusan layi a cikin iyakokin aiki.
• Zafin Filin vs. Ƙarfin Haske (Hoto 1-8):Ƙarfin haske yana raguwa yayin da zafin filin ya tashi saboda raguwar ingancin hasken.
• Zafin Filin vs. Wutar Gaba (Hoto 1-9):Zane na ragewa – mafi girman wutar da aka yarda yana raguwa a yanayin zafi mai girma.
• Wutar Gaba vs. Tsawon Igiyar Haske (Hoto 1-10):Tsawon igiya yana canzawa kadan tare da wutar (canjin ja a manyan wutar).
• Ƙarfin Haske vs. Tsawon Igiya (Hoto 1-11):Rarraba spectral yana nuna kololuwa kusa da 570 nm tare da nisa na rabin igiya ~15 nm.
• Tsarin Radiation (Hoto 1-12):Rarraba kusurwa mai faɗi (140°) yana tabbatar da fitowar haske daidai.

Wadannan zane-zane suna taimaka wa masu tsara kayan aiki don hasashen aikin LED a yanayin zafi da lantarki daban-daban.

5. Bayanin Injiniya da Shiryayye

5.1 Girman Shiryayye

Shiryayyen LED yana da 1.6 mm (tsawo) × 0.8 mm (faɗi) × 0.7 mm (tsayi). Haƙuri yana ±0.2 mm sai dai in an faɗi akasin haka. Duban ƙasa yana nuna filaye biyu: Fili 1 (cathode) da Fili 2 (anode), tare da alamomin polarity. An ba da shawarar filaye na narkewa suna da girma: kowane fili 0.8 mm × 0.8 mm, tare da tazara 2.4 mm tsakanin cibiyoyi.

5.2 Polarity da Tsarin Narkewa

Ana nuna polarity ta hanyar kumbura a kan shiryayyen (Hoto 1-4). Dole ne a tabbatar da madaidaiciyar hanya yayin sanyawa. Tsarin filin narkewa da aka ba da shawara (Hoto 1-5) yana taimaka wajen samun haɗin narkewa mai dogaro da kuma rarraba zafi mai kyau.

6. Jagorar Narkewa da Haɗa

6.1 Yanayin Sake Narkewa

Yanayin sake narkewa da aka ba da shawara (Hoto 3-1) shine kamar haka:

• Matsakaicin hawan hawa: ≤3 °C/s (daga Tsmax zuwa TP).
• Tsinkayar zafi: 150 °C zuwa 200 °C na 60-120 s.
• Lokacin sama da 217 °C (TL): ≤60 s.
• Matsayin zafi mafi girma (TP): 260 °C, tare da lokaci a cikin 5 °C na mafi girma (tp) ≤30 s.
• Matsayin sanyaya: ≤6 °C/s.
• Jimlar lokaci daga 25 °C zuwa mafi girma: ≤8 mintuna.

Bai kamata a yi sake narkewa fiye da sau biyu ba. Idan fiye da sa'o'i 24 suka wuce tsakanin ayyukan narkewa guda biyu, LED na iya ɗaukar laushi kuma su lalace.

6.2 Narkewa da Gyaran Hannu

Narkewa da hannu: zafin ƙarfe ≤300 °C, lokaci ≤3 seconds, sau ɗaya kawai. Ya kamata a guji gyara; idan ya zama dole, yi amfani da ƙarfen narkewa mai kai biyu kuma a tabbatar da tasirin LED kafin.

6.3 Kariya yayin Mu'amala

• Kada a saka LED a kan PCBs masu lanƙwasa.
• Kada a yi amfani da damuwa na inji ko girgiza yayin sanyaya.
• Ka guje wa sanyaya da sauri bayan narkewa.

7. Bayanin Shiryayye da Oda

Ana shirya LED a cikin tef mai ɗaukar kaya da reel. Adadin daidai: 4000 guda kowane reel. Tef mai ɗaukar kaya yana da girma kamar yadda aka nuna a Hoto 2-1 (pitch 4.0 mm, faɗi 8.0 mm). Reel (Hoto 2-2) yana da diamita na waje na 178 mm ±1 mm. Ana amfani da buhun hana laushi tare da busasshiyar ƙasa da katin nuna danshi. Lakabin (Hoto 2-3) ya haɗa da lambar sashi, lambar bayani, lambar lot, lambobin rukunin don haske, chromaticity, ƙarfin wutar gaba, tsawon igiya, adadi, da kwanan wata. An bayar da girman akwatin kwali na waje (Hoto 2-5).

8. Shawarwarin Aikace-aikace

Aikace-aikace na yau da kullun sun haɗa da alamun gani akan na'urorin lantarki na masu amfani, hasken cikin mota, hasken baya ga maɓalli, da alamomi na gama gari. Saboda kusurwar gani mai faɗi, waɗannan LEDs suna da kyau don fitilun hali waɗanda ke buƙatar gani daga kusurwoyi da yawa. Don aiki mafi kyau, tabbatar da isasshen zubar da zafi kuma iyakance wutar gaba zuwa ≤30 mA (ko ƙasa da haka bisa yanayin zafi). Yi amfani da resistors masu iyakance wutar a jere.

9. Dogaro da Gwaji

LED ta cancanci bisa ga gwajin dogaro na yau da kullun (Tebur 2-3):

• Sake narkewa: 260°C mafi girma, sau 2, 22 guda, 0/1 karɓa/ƙi.
• Zagayen zafi: -40°C zuwa 100°C, zagaye 100, 22 guda.
• Girgizar zafi: -40°C zuwa 100°C, zagaye 300, 22 guda.
• Ajiyayye a yanayin zafi mai girma: 100°C na sa'o'i 1000, 22 guda.
• Ajiyayye a yanayin zafi mara girma: -40°C na sa'o'i 1000, 22 guda.
• Gwajin rayuwa: 25°C, 20 mA na sa'o'i 1000, 22 guda.

Ma'aunin gazawa: ƙarfin wutar gaba >1.1× USL, wutar koma baya >2.0× USL, haske<0.7× LSL.

10. Kariya da Shawarwarin Ajiyayye

• Adadin sulfur a muhalli da kayan haɗi bai kamata ya wuce 100 ppm ba.
• Adadin bromine da chlorine a kayan waje: kowane sinadari<900 ppm, jimlar<1500 ppm.
• Ka guje wa mahadi masu canzawa (VOCs) waɗanda za su iya shiga cikin rufin silicone kuma su haifar da canza launi.
• Matsayin ESD: yi amfani da kariya ta ESD da ta dace yayin mu'amala.
• Ajiyayye kafin buɗewa: ≤30°C, ≤75% RH, cikin shekara 1 daga kwanan wata. Bayan buɗewa: ≤30°C, ≤60% RH, awa 168. Idan ya wuce, toya a 60±5°C na ≥24 sa'o'i kafin amfani.

11. Ka'idodin Aikin LED

Wannan LED ta dogara ne akan guntu koren-rawayu na gallium phosphide (GaP). Lokacin da aka yi amfani da wutar gaba, electrons da holes suna sake haɗuwa a cikin haɗin PN, suna sakin makamashi a cikin nau'in photons (electroluminescence). Tsawon igiya (launi) an ƙayyade shi ta hanyar bandgap na semiconductor. Kusurwar gani mai faɗi an samu ta hanyar tsarin shiryayye da rufewa.

12. Hanyoyin Ci Gaba

SMT LEDs na ci gaba da raguwar girma yayin da suke ƙara inganci. Wannan shiryayyen 1.6×0.8×0.7 mm yana wakiltar nau'i na miniature na yau da kullun (kama da 0603 imperial). Hanyoyin gaba sun haɗa da ingantaccen haske, rarrabuwa mai tsauri, da ingantaccen sarrafa zafi don aiki mai yawan wutar. Amincewa da RoHS da ƙa'idodin muhalli yana haifar da amfani da narkewa mara gubar da kayan da ba su da halogen.

13. Tambayoyin da Aka Saba Yi

Tambaya: Menene wutar aiki da aka ba da shawara?
Amsa: Don aiki mai ci gaba, 20 mA na yau da kullun. Mafi girma shine 30 mA. Yi amfani da resistor don iyakance wutar.

Tambaya: Yaya zan adana LED da ba a yi amfani da su ba?
Amsa: Bi yanayin ajiyayye: ≤30°C, ≤75% RH. Yi amfani a cikin shekara 1. Bayan buɗewa, yi amfani a cikin awa 168 ko toya kafin amfani.

Tambaya: Zan iya amfani da wannan LED a aikace-aikacen waje?
Amsa: Iyakokin zafin aiki shine -40°C zuwa +85°C, amma LED ba a tantance don fallasa kai tsaye ga laushi ba tare da rufin da ya dace ba.

Tambaya: Menene tsawon rayuwa na yau da kullun?
Amsa: Gwajin dogaro ya haɗa da gwajin rayuwa na sa'o'i 1000 a 20 mA, 25°C. Tsawon rayuwa na yau da kullun ya fi tsayi (misali, sa'o'i 50,000) dangane da yanayin aiki.

14. Misalan Aikace-aikace Masu Amfani

Misali 1: Nuna hali a kan ma'aunin hanyar sadarwa. Yi amfani da resistor 150 Ω a jere tare da samar da 5 V don samun wutar gaba ~20 mA. Kusurwar gani mai faɗi tana tabbatar da gani daga duk bangarorin na'urar.

Misali 2: Hasken baya ga alamar maɓalli. Launi koren-rawayu yana ba da bambanci mai kyau. Yi amfani da direban wutar akai-akai don kiyaye haske daidai ga zafi.

Misali 3: Hasken cikin mota (ba mahimmanci ga aminci ba). Ƙaramin girman yana ba da damar sanyawa a wurare matsi. Tabbarin sarrafa zafi ta hanyar jan ƙarfe na PCB.