Bayani na Fasaha na LED Orange 1.0x0.5x0.4mm tare da Wuta 1.7-2.4V da Karfin 48mW

1. Bayani na Samfur

Wannan LED orange an yi shi ne ta amfani da guntun orange kuma an saka shi a cikin wani ƙaramin fakiti mai matuƙar ƙanƙanta wanda ya auna 1.0mm x 0.5mm x 0.4mm. An tsara shi don aikace-aikacen nuni da nuna alama na gaba ɗaya inda sarari yake da daraja. LED ɗin yana ba da kusurwar gani mai faɗi sosai na digiri 140, yana mai da shi dacewa ga aikace-aikacen da ake buƙatar rarraba haske iri ɗaya. Ya dace da duk matakan haɗa SMT da soter, kuma yana da matakin damshin 3 (MSL 3). Bangaren yana biyan ka'idojin RoHS, yana haɗuwa da ka'idojin muhalli na yanzu.

1.1 Siffofi

• Kusurwar gani mai faɗi sosai (140°).
• Ya dace da duk matakan haɗa SMT da soter.
• Matsayin damshi: Mataki na 3.
• Ya bi ka'idojin RoHS.

1.2 Aikace-aikace

• Masu nuna haske.
• Nunin maɓalli da alama.
• Amfani gaba ɗaya a cikin na'urorin lantarki na mabukaci, hasken cikin motoci, da sarrafa masana'antu.

2. Nazarin Sigogin Fasaha

2.1 Halayen Haske da Lantarki

Halayen lantarki da haske an bayyana su a yanayin gwaji na Ts = 25°C da halin gaba na 5 mA (sai dai in an lura daban). Halin gaba (VF) an rarraba shi a cikin kewayon da yawa daga mafi ƙanƙanta 1.7 V zuwa mafi girma 2.4 V. Tsawon tsawo na tsakiya (λD) ya tashi daga 615 nm zuwa 630 nm, yana rufe bakan orange. Ƙarfin haske (IV) ya tashi daga 8 mcd zuwa 100 mcd ya danganta da bin. Faɗin rabin bakan yana da kimanin 15 nm, yana nuna fitar da launi mai tsafta. Halin baya (IR) a VR = 5V an ƙayyade shi zuwa mafi girma na 10 µA. Juriyar zafi daga haɗin gwiwa zuwa wurin soter (RTHJ-S) shine 450 °C/W a IF = 5 mA.

2.2 Matsakaicin Matsalolin Matsayi

Dole ne a cece matsalolin matsayi mafi girma yayin aiki don hana lalacewa. Hasara na ƙarfi (Pd) shine 48 mW. Halin gaba mai ci gaba (IF) shine 20 mA, yayin da halin gaba mafi girma (IFP) zai iya kaiwa 60 mA a zagayen 1/10 da faɗin bugun 0.1 ms. Ƙarfin juriyar zazzagewar lantarki (HBM) shine 2000 V. Kewayon zafin aiki (Topr) shine -40°C zuwa +85°C, kuma kewayon zafin ajiya (Tstg) iri ɗaya ne. Zafin haɗin gwiwa (Tj) bai kamata ya wuce 95°C ba.

3. Tsarin Rarraba Bin

3.1 Bins na Halin Gaba

An rarraba halin gaba zuwa bins bakwai (A2, B1, B2, C1, C2, D1, D2) tare da kewayon daga 1.7-1.8 V har zuwa 2.3-2.4 V. Wannan yana baiwa masu tsara damar zaɓar LEDs masu kama da VF don haske iri ɗaya a cikin saitunan jerin ko daidaici.

3.2 Bins na Tsawon Tsawo na Tsakiya

An raba tsawon tsawo na tsakiya zuwa bins shida: D10 (615-617.5 nm), D20 (617.5-620 nm), E10 (620-622.5 nm), E20 (622.5-625 nm), F10 (625-627.5 nm), da F20 (627.5-630 nm). Wannan rabuwa mai kyau yana tabbatar da daidaiton launi a cikin ƙungiyoyin samarwa.

3.3 Bins na Ƙarfin Haske

An raba ƙarfin haske zuwa bins shida: A00 (8-12 mcd), B00 (12-18 mcd), C00 (18-28 mcd), D00 (28-43 mcd), E00 (43-65 mcd), da F00 (65-100 mcd). Dole ne a yi la'akari da juriyar ±10% a kan ma'aunin ƙarfi a cikin tsarin tsara tsarin.

4. Nazarin Ƙirar Aiki

4.1 Halin Gaba vs Halin Gaba

Hoto 1-6 yana nuna halin gaba na al'ada vs halin gaba. A 5 mA halin gaba ya kai kimanin 2.0 V (na al'ada). A 20 mA halin gaba ya tashi zuwa kusan 2.8 V. Dangantakar tana da yawa, al'ada ga GaP da GaAsP LEDs.

4.2 Ƙarfin Dangashi vs Halin Gaba

Hoto 1-7 yana nuna cewa ƙarfin dangashi yana ƙaruwa kusan daidai da halin gaba har zuwa kimanin 7.5 mA, sannan ya fara jikewa.

4.3 Tasirin Zafin

Hoto 1-8 yana nuna cewa ƙarfin dangashi yana raguwa tare da ƙaruwar zafin yanayi. A 100°C ƙarfin ya kai kimanin 70% na ƙimar a 25°C. Hoto 1-9 yana kwatanta rage halin gaba mafi girma a manyan zafin fil. A zafin fil na 100°C, halin gaba mafi girma an rage shi zuwa kimanin 15 mA.

4.4 Tsawon Tsawo na Tsakiya vs Halin Gaba

Hoto 1-10 yana nuna ɗan canjin ja (ƙaruwar tsawon tsawo) yayin da halin gaba ya tashi, daga kimanin 620 nm a 0.1 mA zuwa 623 nm a 15 mA. Dole ne a yi la'akari da wannan tasirin a aikace-aikacen da ke buƙatar daidaiton launi.

4.5 Rarraba Bakan

Hoto 1-11 yana gabatar da ƙarfin dangashi vs tsawon tsawo a Ta=25°C. Tsawon tsawo mafi girma yana kusa da 620 nm tare da cikakken faɗi a rabin mafi girma (FWHM) na kimanin 15 nm. Bakan yana da tsabta ba tare da ƙarin ƙararraki ba.

4.6 Ƙirar Haske

Hoto 1-12 yana nuna ƙirar haske. LED ɗin yana fitar da haske kusan daidai a kwana har zuwa ±70°, tare da ƙarfin dangashi yana faɗuwa zuwa 0.5 a kusan ±80°. Ƙirar mai faɗi ta sa ya dace da aikace-aikacen nuni da hasken baya inda ake so katako mai faɗi.

5. Bayanan Injiniya da Marufi

5.1 Girman Fakiti

Girman fakiti shine 1.0 mm x 0.5 mm x 0.4 mm (tsawon x faɗi x tsawo). Hoto 1-1 (gani sama) da Hoto 1-3 (gani gefe) suna bayyana madaidaitan shirye-shirye. Duk girman suna da juriyar ±0.2 mm sai dai in an lura daban.

5.2 Shirye-shiryen Soter

Hoto 1-5 yana ba da shirye-shiryen soter da aka ba da shawara. Pad na anode (pad 1) da pad na cathode (pad 2) an tsara su don kwanciyar hankali na injiniya da watsar zafi. Gani ƙasa (Hoto 1-2) da alamar polarity (Hoto 1-4) suna nuna wane pad ne.

5.3 Gano Polarity

LED ɗin yana da alamar polarity akan gani sama (wani gurnati ko digo na kusurwa) don nuna cathode (pad 2). Daidaitaccen jagora yana da mahimmanci don aiki.

6. Jagoran Soter da Haɗawa

6.1 Bayanin Zafin Soter na Reflow

Hoto 3-1 yana ba da bayanin zafin soter na reflow da aka ba da shawara. Babban sigogi: preheat daga 150°C zuwa 200°C na daƙiƙa 60-120; tashin zafin ≤3°C/s; lokaci sama da 217°C (TL) 60-120 daƙiƙa; mafi girman zafi (TP) 260°C tare da mafi girman tsawon 10 daƙiƙa; saurin sanyaya ≤6°C/s. Jimillar lokaci daga 25°C zuwa mafi girma bai kamata ya wuce mintuna 8 ba. Kada a yi soter na reflow fiye da sau biyu. Idan fiye da sa'o'i 24 ya wuce tsakanin ayyukan soter guda biyu, LED ɗin na iya lalacewa.

6.2 Soter da Hannu

Lokacin soter da hannu, kiyaye zafin ƙarfe a ƙasa da 300°C da lokacin soter a ƙasa da daƙiƙa 3. Soter da hannu ya kamata a yi sau ɗaya kawai.

6.3 Gyara

Ya kamata a guji gyara bayan soter. Idan ya zama dole, yi amfani da ƙarfen soter mai kai biyu. Tabbatar a gaba cewa halayen LED ba za su lalace ba.

6.4 Hattara

Kada a saka abubuwa a kan ɓangarorin PCB da suka karkata. Bayan soter, guje wa damuwa na injiniya ko girgiza yayin sanyaya. Kada a sanyaya na'urar da sauri.

6.5 Yanayin Ajiya

7. Bayanan Marufi da Oda

7.1 Ƙayyadaddun Marufi

Kowane reel yana ɗauke da guda 4000. Girman tef ɗin mai ɗaukar kaya an nuna shi a Hoto 2-1 (pitch 2.00 mm, faɗi 8.00 mm, zurfi 0.61 mm). Girman reel (Hoto 2-2) ya haɗa da diamita na waje na 178 mm ±1 mm da diamita na cibiya ta 60 mm ±0.1 mm. Lakabin (Hoto 2-3) ya haɗa da Lambar Bangare, Lambar Spec, Lambar Lot, Lambar Bin, Haske na Haske, Bin Chromaticity, Halin Gaba, Tsawon Tsawo, Yawa, da Kwanan Wata na Ƙira.

7.2 Marufi Mai Raji da Danshi

Ana aika LEDs a cikin jakunkuna masu hana damshi tare da bushewa da katin nuna danshi (Hoto 2-4). Jakar tana da alamar kariya daga ESD.

7.3 Akwatin Kati

Ana tattara reels a cikin akwatunan kati don jigilar kaya (Hoto 2-5).

8. Shawarwarin Aikace-aikace

Aikace-aikace na yau da kullun sun haɗa da masu nuna haske a cikin na'urorin lantarki na mabukaci (misali, yanayin wayar hannu, sarrafa kayan gida), hasken cikin motoci (haske na maɓalli, alamu), da bangarorin sarrafa masana'antu. Saboda kusurwar gani mai faɗi, waɗannan LEDs sun kuma dace da hasken gefe ko hasken baya kai tsaye na ƙananan nuni. Dole ne masu tsara su tabbatar da isasshen watsar zafi, musamman lokacin aiki a manyan halin yanzu ko a yanayin zafi mai girma. Mafi girman zafin haɗin gwiwa na 95°C bai kamata ya wuce ba. Masu iyakance halin yanzu sun zama dole, saboda halin gaba yana canzawa tare da zafi da halin yanzu.

9. Kwatanta Fasaha

Idan aka kwatanta da LEDs na nuni na yau da kullun, wannan bangaren yana ba da ƙaramin sawun ƙafa (1.0x0.5mm sau da yawa 3.2x1.6mm) da kusurwar gani mai faɗi (140° sau da yawa 120°). Ƙananan hasara na ƙarfi (48 mW mafi girma) ya sa ya dace da na'urorin da ke amfani da baturi. Rarraba mai kyau a tsawon tsawo da ƙarfi yana tabbatar da daidaiton launi da haske a cikin jerin LED da yawa, wanda shine fa'ida akan LEDs na gaba ɗaya waɗanda ke da faɗin juriya.

10. Tambayoyin da Aka Saba Yi

1. Menene rayuwar ajiya kafin buɗewa?Ana iya adana LED ɗin a cikin jakar hana damshi da ba a buɗe ba har kimanin shekara ɗaya a ≤30°C da ≤75% RH.
2. Menene zai faru idan bushewa ya ɓace?Idan kayan sha na danshi ya ɓace ko kuma lokacin ajiya ya wuce, ana buƙatar gasa a 60±5°C na awoyi 24 kafin amfani.
3. Yadda ake kariya daga ESD?Yi amfani da wuraren aiki na ƙasa, madaurin wuyan hannu, da kwantena masu iko. LED ɗin an ƙiyasta shi don 2 kV HBM, amma ana ba da shawarar hattara don mu'amala mai hankali.
4. Za a iya amfani da wannan LED a wuraren da ke da babban sulfur?Abun sulfur a cikin yanayi ya kamata ya zama ≤100 PPM. Bugu da ƙari, dole ne a sarrafa abun halogen (bromine da chlorine) a cikin kayan haɗin gwiwa don hana lalacewa.

11. Misalin Aikace-aikace na Aiki

A cikin na'urar likita mai ɗaukuwa da ke buƙatar ƙaramin nuni orange don sanarwar ƙararrawa, yin amfani da wannan LED 1.0x0.5mm ya ba da izinin PCB ya zama ƙarami. Tare da halin gaba na 5 mA, ƙarfin haske na 28 mcd (bin D00) ya isa don gani a hasken rana. Kusurwar gani mai faɗi ya tabbatar da cewa ganin ƙararrawa daga kusurwoyi daban-daban. Ƙaramin halin aiki ya taimaka wajen tsawaita rayuwar baturi.

12. Ƙa'idar Aiki

Wannan LED ya dogara ne akan semiconductor mai faɗin tsagi kai tsaye (mai yiwuwa tsarin AlGaInP ko GaAsP). Lokacin da aka yi amfani da jujjuyawa ta gaba a kan haɗin p-n, electrons daga gefen n sun sake haɗuwa da ramuka a gefen p, suna sakin makamashi a cikin nau'in photons. Faɗin tsagin makamashi yana ƙayyade tsawon tsawo na tsakiya. Fitar orange ta samo asali ne daga takamaiman abun alloy. Ingancin ƙididdiga da ƙarfin fitarwa suna tasiri ta hanyar zafin haɗin gwiwa, yawan halin yanzu, da ingancin kayan.

13. Hanyoyin Ci Gaba

Hanyar a cikin LEDs na nuni tana zuwa ga ƙananan fakiti (har zuwa 0.6x0.3mm) tare da mafi girman haske da ƙananan amfani da wuta. Ci gaba na gaba sun haɗa da haɗaɗɗun guntu masu yawa a cikin fakiti ɗaya, ingantaccen sarrafa zafi, da rabuwa mai ƙarfi don daidaiton launi. Amfani da silicon encapsulants yana ƙara aminci, kodayake jituwa da kayan waje ya kasance damuwa. Masana'antar tana ci gaba da turawa zuwa cikakken bin ka'idojin muhalli (ROHS, REACH) da mafi girman kariya daga zazzagewar lantarki.