LED Rawayan 1.6x0.8x0.25mm - Wutar Gaba 1.6-2.4V - Ɗaukar Wuta 48mW - Tsawon Zango 585-595nm - Bayanan Fasaha

1. Bayani Kan Samfur

1.1 Bayani Gabaɗaya

Wannan LED SMD rawaya an yi shi ta amfani da guntu rawaya mai inganci kuma an tattara shi a cikin nau'i mai girman 1.6mm x 0.8mm x 0.25mm, wanda aka fi sani da nau'in 0603. LED ɗin yana ba da tsawon zango na yau da kullum a cikin kewayon 585nm zuwa 595nm, yana samar da haske rawaya mai tsafta. An tsara shi don ayyukan nuni na gabaɗaya da hasken baya inda ƙarancin amfani da wuta da ƙaramin faɗi suke da mahimmanci. Na'urar tana goyan bayan hanyoyin haɗa SMT na yau da kullum kuma ta cika buƙatun RoHS.

1.2 Siffofin

• Kusurwar gani mai faɗi sosai na 140° don rarraba haske daidai.
• Ya dace da duk hanyoyin haɗa SMT da siyarwa.
• Matsayin damshin kari: Mataki na 3 (MSL 3) bisa ga ma'aunin JEDEC.
• Ya bi ka'idar RoHS, ba shi da abubuwa masu haɗari.
• Ana samunsa a cikin rarrabuwa da yawa na wuta, tsawon zango, da ƙarfin haske don sassauci a ƙira.
• Ƙarancin juriyar zafi (450 K/W na yau) yana taimakawa wajen watsa zafi.

1.3 Aikace-aikace

• Alamomin gani a cikin kayan lantarki na masu amfani, na'urorin gida, da kayan masana'antu.
• Hasken baya na maɓalli da alamomi don musaya na mai amfani.
• Nuni da alamomin matsayi na gabaɗaya.
• Haske na ciki na mota (aikace-aikace marasa mahimmanci).

1.4 Girman Fakitin

Fakitin LED yana da shaci mai karami: tsayi 1.60mm, faɗi 0.80mm, da tsawo 0.25mm. Gani daga ƙasa yana nuna filaye biyu na anode/cathode tare da alamun polarity. Gani daga sama yana nuna farfajiyar haske. Tsarin siyarwa yana ba da shawarar shimfidar filaye na 2.4mm x 0.8mm tare da tazara 0.8mm. Duk ma'auni suna cikin millimita tare da haƙuri na ±0.2mm sai dai in an faɗi akasin haka. An yiwa polarity alama akan fakitin don tabbatar da daidaiton shigarwa yayin haɗawa.

1.5 Siffofin Samfur

Duk ma'aunin lantarki da na gani an bayyana su a yanayin zafi na 25°C (Ts=25°C) sai dai in an faɗi akasin haka.

Matsakaicin Matsayin Ƙarfi a Ts=25°C

1.6 Siffofin Gani na Yau da Kullum

Lanus na aiki suna nuna halayen LED a ƙarƙashin yanayi daban-daban. Hoto 1-6 yana nuna alaƙar halin yanzu na gaba da wutar gaba, yana nuna madaidaicin wutar kunnawa a kewayen 1.8V zuwa 2.0V don 20mA. Hoto 1-7 yana nuna ƙarfin haske dangane da halin yanzu na gaba, yana nuna haɓaka madaidaiciya har zuwa 20mA. Hoto 1-8 yana nuna ƙarfin haske dangane da zafin yanayi, tare da ɗan raguwa a yanayin zafi mafi girma. Hoto 1-9 yana ba da lanus na ragewa don halin yanzu na gaba dangane da zafin fil, yana ba da shawarar rage halin yanzu sama da 60°C. Hoto 1-10 yana nuna canjin tsawon zango na yau da kullum tare da halin yanzu na gaba; tsawon zango ya kasance kusan daidai a kewayen 590nm. Hoto 1-11 yana nuna rarraba fitinar haske tare da kololuwa a kusan 590nm da faɗin rabin zango na kusan 15nm. Hoto 1-12 shi ne zane na tsarin hasken wuta, yana tabbatar da kusurwar gani mai faɗi 140° tare da fitar da haske daidai.

2. Marufi

2.1 Bayanin Marufi

An tattara LEDs ɗin a cikin nau'in tef da reel tare da 4000 guda a kowane reel. Tef ɗin yana da faɗi 8.0mm, tare da tazarar aljihu 4.0mm da kuma daidaiton yanki dangane da alkiblar ciyarwa. Matsakaicin reel ɗin: diamita na waje 178mm, faɗi 8.0mm, diamita na cibiya 60mm, da ramin arbor 13.0mm. Kowane reel an yiwa lakabi da lambar sashi, lambar ƙayyadaddun, lambar kuri'a, lambar rukuni (don flux, chromaticity, wutar gaba, tsawon zango), adadi, da lambar kwanan wata.

2.2 Marufi Mai Kare Damshi

An rufe reel ɗin a cikin jakar shingen damshi (MBB) tare da busasshiyar abu da katin nuna zafi don kiyaye matakin damshi ƙasa da buƙatun MSL 3. An rufe jakar da iska kuma an yiwa lakabi da alamun kariya na ESD.

2.3 Akwatin Kwali

Ana tattara reels da yawa a cikin akwatin kwali na yau da kullum don jigilar kaya. Akwatin an yiwa lakabi da bayanan samfur da alamomin jigilar kaya.

2.4 Abubuwan da Kayan Gwajin Dogaro da Yanayi

LEDs ɗin sun cancanta bisa ga ka'idodin JEDEC: Sake siyarwa (260°C, 10s, sau 2), Zagayewar Zafi (-40°C zuwa 100°C, zagaye 100), Girgiza Zafi (-40°C zuwa 100°C, girgiza 300), Ajiya a Babban Zafi (100°C, 1000h), Ajiya a Ƙaramin Zafi (-40°C, 1000h), da Gwajin Rayuwa (25°C, 20mA, 1000h). Sharuɗɗan karɓa: 0 gazawa daga cikin samfuran 22.

2.5 Sharuɗɗan Hukuncin Lalacewa

Bayan gwaje-gwajen dogaro, iyaka masu zuwa suna aiki: Wutar gaba a 20mA bai kamata ya wuce sau 1.1 na iyakar ƙayyadaddun ƙarshe (USL). Wutar baya a 5V bai kamata ya wuce USL sau 2.0 ba. Ƙarfin haske a 20mA bai kamata ya faɗi ƙasa da sau 0.7 na iyakar ƙayyadaddun ƙasa (LSL).

3. Umarnin Siyarwa na SMT Reflow

3.1 Matsayin Reflow

Matsayin siyarwa na reflow da aka ba da shawara ya haɗa da: Zazzagewa daga 150°C zuwa 200°C na daƙiƙa 60-120; hawan juzu'i ≤3°C/s; lokaci sama da 217°C (TL) na daƙiƙa 60-150; mafi girman zafi (TP) 260°C na max daƙiƙa 10; saurin sanyaya ≤6°C/s. Jimlar lokaci daga 25°C zuwa kololuwa yakamata ya kasance ≤ mintuna 8. Bai kamata a yi siyarwa ta reflow fiye da sau biyu ba, kuma idan akwai fiye da sa'o'i 24 tsakanin siyarwa, dole ne a gasa LEDs ɗin.

3.1.1 Ƙarfen Siyarwa

Don siyarwa da hannu, yi amfani da ƙarfen siyarwa mai zafi ƙasa da 300°C kuma lokacin lamba bai wuce daƙiƙa 3 ba. Ya kamata a yi siyarwa da hannu sau ɗaya kawai a kowane LED.

3.1.2 Gyara

Ba a ba da shawarar gyara bayan siyarwa ba. Idan ba zai yuwu ba, yi amfani da ƙarfen siyarwa mai kai biyu kuma a riga an tabbatar da cewa sifofin LED ba za su lalace ba.

3.1.3 Hattara

Kada a sanya LEDs a kan sassan PCB marasa daidaito. Bayan siyarwa, a guji damuwa na injiniya ko girgiza yayin sanyaya. Kada a sanyaya na'urar da sauri.

4. Hattara Game da Mu'amala

4.1 Ajiya da Mu'amala

• Kafin buɗe jakar shingen damshi: ajiye a<30°C,<75%RH har zuwa shekara 1 daga lambar kwanan wata.
• Bayan buɗewa: ajiye a<30°C,<60%RH kuma a yi amfani da shi a cikin sa'o'i 168 (kwanaki 7). Idan mai nuna zafi ya nuna >60%RH, ana buƙatar gasawa (60°C±5°C na awanni 24).
• LED ɗin yana da saurin kamuwa da ESD (HBM 2000V). Dole ne a ɗauki matakan kariya na ESD yayin mu'amala da haɗawa.
• Jituwa da muhalli: dole ne kayan da aka haɗa su ƙunshi sulfur ƙasa da 100PPM; bromine<900PPM; chlorine<900PPM; jimlar halogens<1500PPM. VOCs daga kayan daki na iya haifar da canza launi; gwada jituwa a aikace-aikacen ƙarshe.
• Tsarin zafi yana da mahimmanci: tabbatar da cewa zafin matsawa bai wuce 95°C ba. Rage halin yanzu na gaba idan yanayin zafi ya wuce 60°C.
• Don tsarin kewayawa, yi amfani da resistors masu iyakance halin yanzu don hana wuce gona da iri saboda canjin wutar gaba. Kada a yi amfani da wutar baya.

5. Tsarin Rarrabuwa

Ana rarraba LED ɗin zuwa rukunoni da yawa don samar da madaidaicin haƙuri ga sifofi masu mahimmanci:

• Rukunin Wutar Gaba:A0 (1.6-1.8V), B0 (1.8-2.0V), C0 (2.0-2.2V), D0 (2.2-2.4V). Wannan yana ba masu ƙira damar zaɓar takamaiman kewayon wuta don daidaiton haske a cikin kewayawar jeri ko layi ɗaya.
• Rukunin Tsawon Zango na Yau da Kullum:2K (585-590nm) da 2L (590-595nm). Yana ba da damar daidaiton launi a aikace-aikacen da ke buƙatar LEDs da yawa.
• Rukunin Ƙarfin Haske:F00 (65-100mcd), G00 (100-150mcd), H00 (150-230mcd), I00 (230-350mcd). Yana ba da sassauci don buƙatun haske daban-daban.

6. Shawarwari na Aikace-aikace

Don aikace-aikace na yau da kullum kamar hasken nuni, ƙirƙira halin yanzu na gaba zuwa 20mA ta amfani da resistor da ya dace. Yi la'akari da ragewa idan ana aiki da LED a yanayin zafi mai girma. Kusurwar gani mai faɗi 140° ta dace da alamun gaban panel da ake buƙatar ganuwa daga kusurwoyi da yawa. Don hasken baya na nuni, ana iya amfani da LEDs da yawa a jeri/layi ɗaya tare da raba halin yanzu daidai. Tabbatar da shimfidar filin PCB ta dace da tsarin siyarwa da aka ba da shawara (filaye 0.8mm tare da tazara 2.4mm). Ka guji fallasa LED ɗin ga sinadarai masu ƙarfi ko muhalli mai yawan sulfur.

7. Kwatancen Fasaha

Idan aka kwatanta da sauran LEDs rawaya 0603 a kasuwa, wannan na'urar tana ba da kusurwar gani mai faɗi sosai (140° idan aka kwatanta da 120° na yau), zaɓuɓɓukan rarrabuwa da yawa don wuta da tsawon zango, da juriyar zafi mai ƙarancin da ke taimakawa sarrafa zafi. Matsayin MSL 3 na yau da kullum ne ga damshin kari, amma fakitin mai ƙarfi na na'urar yana ba da damar hanyoyin SMT na yau da kullum. Samun rukunin ƙarfin haske daga 65mcd zuwa 350mcd yana ba masu ƙira zaɓin haske mai faɗi ba tare da ƙayyadadden yawa ba.

8. Tambayoyin da Aka Yi Yawaita

Tambaya: Ta yaya zan zaɓi rukunin wuta da ya dace?Amsa: Zaɓi rukunin da ya dace da wutar da kake da ita ban da raguwar wutar resistor mai iyakancewa. Misali, idan kana amfani da wutar 3.3V da 20mA, zaɓi wutar gaba a kewayen 1.8-2.0V (Rukuni B0 ko C0) don kiyaye ragewar wutar resistor a ma'ana.

Tambaya: Zan iya tuka waɗannan LEDs ɗin da halin yanzu sama da 20mA?Amsa: Madaidaicin halin yanzu na DC shine 20mA; ana ba da izinin aiki da bugun jini har zuwa 60mA tare da zagayen aiki 1/10 da faɗin bugun jini 0.1ms. Fitar da waɗannan iyakoki na iya haifar da lalacewa.

Tambaya: Me yasa akwai rukunin ƙarfin haske da yawa?Amsa: Rarrabuwa yana ɗaukar canjin tsari na halitta. Masu ƙira za su iya yin odar takamaiman rukunin ƙarfin haske don cika mafi ƙarancin haske ba tare da ƙayyadadden yawa ba, wanda ke taimakawa sarrafa farashi.

Tambaya: Yaya zan gasa LEDs ɗin idan akwai buƙata?Amsa: Gasa a 60±5°C na awanni 24 idan an buɗe jakar sama da awanni 168 ko mai nuna zafi ya nuna >60%RH. Yi amfani da zagayen gasa sau ɗaya kawai.

9. Misalin Ƙira na Aiki

Yi la'akari da nuni na kayan aiki da ke buƙatar LED rawaya da ake iya gani a nisan mita 2 tare da wutar 5V. Ta amfani da Rukuni G00 (100-150mcd) da Rukuni B0 (1.8-2.0V), ƙimar resistor mai iyakancewa shine (5V - 1.9V)/20mA = 155Ω, zaɓi madaidaicin resistor 150Ω. Ragewar wutar a resistor shine 62mW, yana cikin matsayin 1/8W. Don LEDs da yawa a layi ɗaya, kowanne dole ne ya mallaki resistor nasa don guje wa raba halin yanzu mara daidaituwa saboda canjin wutar gaba. Marufin yana tabbatar da 4000 sassa a kowane reel, wanda ya dace da samar da matsakaiciyar ƙara.

10. Ka'idar Aiki

LEDs rawaya na yau da kullum suna amfani da tsarin semiconductor AlInGaP (aluminum indium gallium phosphide). Lokacin da halin yanzu ya ratsa p-n junction, electrons suna sake haɗuwa da ramuka, suna sakin photons da makamashi ya dace da bangaren rawaya na zango (kusan 590nm). Launin da aka fitar ana ƙaddara shi ta hanyar bandgap na kayan aiki mai aiki. Rufe yana haɗa da epoxy ko silicone mai launin rawaya wanda ke ba da kariya ta injiniya kuma yana inganta fitar da haske. Kusurwar gani mai faɗi ana samun ta ta hanyar ƙirar ruwan tabarau mai kyau da amfani da abin rufe haske.

11. Harkokin Masana'antu

Harkar a cikin LEDs SMD tana ci gaba zuwa ƙananan fakitoci (misali, 0402, 0201) tare da inganci mafi girma. Ana haɓaka LEDs rawaya ta hanyar amber da aka canza ta phosphor ta amfani da guntu shuɗi da phosphor rawaya, wanda ke ba da kwanciyar hankali mafi kyau. Duk da haka, LEDs rawaya guntu kai tsaye suna da farin jini saboda sauƙin kewayawar tuƙi da launi mai cikakke. Bukatar hasken ciki na mota da na'urorin gida masu wayo yana turawa buƙatar ƙananan alamomi masu aminci na rawaya. Dabarun rarrabuwa da aka yi amfani da su a cikin wannan bayanan sun dace da ayyukan masana'antu don tabbatar da daidaiton aiki a aikace-aikacen ƙara.