Farfajiyar White LED 3.2x1.6x0.7mm - Wuta 2.7-3.5V - Ƙarfi 105mW - Takardar Fasaha ta Hausa

1. Bayanin Samfurin

Wannan LED fari an kera ta ta amfani da chip blue da aka haɗe da phosphor, tana da girman 3.2mm x 1.6mm x 0.7mm a cikin kwali mara nauyi. An tsara ta don nuna alama, nuni, da kayan gida. Abubuwan da ke da muhimmanci sun haɗa da kusurwar gani mai faɗi (140°), dacewa da duk hanyoyin SMT da soldering, matakin laushi na 3, da yarda da RoHS. LED na iya samuwa a cikin nau'ikan ƙarfin wutar gaba da ƙarfin haske daban-daban don biyan buƙatun aikace-aikace daban-daban.

2. Fassara Ma'aunin Fasaha

2.1 Halayen Lantarki da Haske

A yanayin gwaji na IF = 20 mA da Ts = 25°C, ƙarfin wutar gaba (VF) ya kasu kashi takwas daga F2 (2.7 V – 2.8 V) zuwa J1 (3.4 V – 3.5 V). Ƙarfin haske (IV) an auna shi a ƙarƙashin yanayi ɗaya kuma ya kai daga 600 mcd zuwa 1200 mcd a cikin nau'i goma sha biyu (1BF zuwa LD2). Kusurwar gani (2θ1/2) yawanci 140° ne, yayin da reverse current (IR) a VR = 5 V bai kai 10 µA ba. Thermal resistance (RthJ-S) an bayyana shi a matsayin 450 °C/W mafi girma.

2.2 Mafi Girman Ƙarfafawa

A Ts = 25°C, mafi girman ƙarfafawa shine: ƙarfin wutar lantarki (Pd) 105 mW, gaba current (IF) 30 mA, peak gaba current (IFP) 60 mA (1/10 duty, 0.1 ms pulse), electrostatic discharge (ESD) 1000 V (HBM), yanayin aiki (Topr) -40°C zuwa +85°C, yanayin ajiya (Tstg) -40°C zuwa +85°C, da yanayin junction (Tj) 95°C. Masu zane dole ne su tabbatar ba a taɓa yin amfani da LED fiye da waɗannan iyakokin ba kuma a samar da isasshen zafi lokacin aiki kusa da mafi girman current.

3. Tsarin Rarraba

Domin biyan buƙatun aikace-aikace daban-daban, LED an rarraba shi zuwa nau'ikan ƙarfin wutar gaba, ƙarfin haske, da chromaticity. Nau'ikan wutar gaba ana kiran su F2, G1, G2, H1, H2, I1, I2, J1, kowanne yana ɗaukar kewayon 0.1 V. Nau'ikan ƙarfin haske an kira su 1BF (600–650 mcd) zuwa LD2 (1150–1200 mcd). Rarraba chromaticity ya dogara da CIE 1931 coordinates kamar yadda aka nuna a chromaticity diagram (Fig. 1-6) da Table 1-3. Duk rarraba ana yin su a IF = 20 mA. Wannan tsarin rarraba yana bawa abokan ciniki damar zaɓar sassa masu matsakaicin daidaito don ingantaccen aikin haske a cikin samarwa mai yawa.

4. Nazarin Yanayin Aiki

4.1 Ƙarfin Wutar Gaba vs. Gaba Current

Kamar yadda aka nuna a Fig. 1-7, gaba current yana ƙaruwa kusan daidai da ƙarfin wutar gaba a cikin kewayon 2.5 V zuwa 3.5 V, tare da ma'aunin aiki na yau da kullun a 20 mA da kimanin 2.8 V – 3.0 V ga yawancin nau'ikan.

4.2 Ƙarfin Haske Dangane da Gaba Current

Fig. 1-8 yana nuna cewa ƙarfin haske yana ƙaruwa da gaba current har zuwa 30 mA, yana bin tsari kaɗan sub-linear. A 20 mA ana daidaita ƙarfin haske zuwa 1.0.

4.3 Dangantaka da Zazzabi

Fig. 1-9 yana nuna cewa ƙarfin haske yana raguwa yayin da zazzabi na muhalli ya ƙaru, yana sauka zuwa kusan 0.85 a 85°C. Fig. 1-10 yana nuna cewa mafi girman damar gaba current yana raguwa yayin da zazzabi na pin ya tashi, yana kaiwa sifili a 120°C.

4.4 Canjin Chromaticity da Current

Fig. 1-11 yana nuna canjin CIE coordinate lokacin da gaba current ya canza daga 1 mA zuwa 30 mA. x da y coordinates suna canzawa kaɗan zuwa ƙananan ƙima tare da ƙarin current, amma suna ci gaba da zama a cikin kewayon kunkuntar.

4.5 Rabawa Spectral

Fig. 1-12 yana nuna ƙarfin haske spectral dangane da tsawon igiyar ruwa. Ƙarfin haske yana kewaye da 450 nm (blue) tare da babban sashi na phosphor daga 520 nm zuwa 700 nm, yana ba da bayyanar fari gabaɗaya.

4.6 Tsarin Radiation

Fig. 1-13 yana nuna halayen kusurwar haske. Ƙarfin haske yana sama da 80% na mafi girma a cikin ±40° kuma yana sauka zuwa 50% a kusan ±70°, yana tabbatar da kusurwar gani mai faɗi sosai na 140°.

5. Bayanin Tsari da Marufi

5.1 Girman Kwali

LED yana cikin kwali mai girman 3.2 mm × 1.6 mm × 0.7 mm tare da kallon sama yana nuna pads biyu na anode/cathode. Kallon ƙasa yana nuna tsarin pad mai girman 1.40 mm × 1.70 mm na cathode da ƙaramin pad na anode. Kallon gefe yana nuna tsayin lens na 0.70 mm da kauri gabaɗaya na 0.70 mm. An samar da tsarin soldering da aka ba da shawarar tare da pad na 1.50 mm × 1.60 mm ga kowane electrode da tazarar 2.10 mm tsakanin pads. An yi alamar polarity kamar yadda aka nuna a Fig. 1-4.

5.2 Tepe da Reel

LEDs an marufi su a cikin tepe masu ɗauka tare da tazarar 2.00 mm, faɗin 8.00 mm, da girman rami daidai da kwali. Kowace reel tana ɗaukar 4000 pcs. Reel tana da diamita na waje na 178 mm ± 1 mm, diamita na hub na 60 mm ± 0.1 mm, da faɗin 13.0 mm ± 0.5 mm. Ana buga alamar polarity akan tepe don nuna alkibla yayin ɗauka.

5.3 Label da Jaka Mai Hana Ruwa

Kowace reel ana yi mata label tare da part number, spec number, lot number, bin code, ƙarfin haske (Ф), chromaticity bin (XY), ƙarfin wutar gaba (VF), tsawon igiyar ruwa (WLD), adadi, da ranar samarwa. Reel an rufe ta a cikin jaka mai hana ruwa tare da desiccant da katin nuna danshi. Sannan a saka jaka a cikin akwati na kwali don jigilar kaya.

6. Jagororin Soldering da Haɗawa

6.1 Tsarin Soldering Reflow

Ana ba da shawarar yin amfani da soldering reflow mara gubar na yau da kullun tare da mafi girman zazzabi na 260°C da lokaci sama da 217°C na 60 – 150 seconds. Preheating daga 150°C zuwa 200°C ya kamata ya ƙare a 60 – 120 seconds. Gudun sanyaya bai kamata ya wuce 6°C/s ba. Ana ba da izinin sake zagayowar reflow sau biyu a mafi yawa, tare da lokacin jira akalla sa'o'i 24 tsakanin zagaye idan an ajiye LEDs a cikin yanayi mara bushe.

6.2 Soldering da Hannu da Rework

Idan ana buƙatar soldering da hannu, a yi amfani da soldering iron da aka saita ƙasa da 300°C na tsawon dakika 3 a kowane pad, kuma a yi aikin sau ɗaya kawai. A guji rework; idan ba za a iya kaucewa ba, dole ne a yi amfani da soldering iron mai kai biyu don dumama pads biyu a lokaci guda. Dole ne a hana damuwa na injiniya da sanyaya da sauri bayan soldering.

6.3 Yanayin Ajiya da Gasawa

Kafin buɗe jaka mai hana ruwa, ana iya ajiye LEDs har zuwa shekara 1 a ≤30°C da ≤75% RH. Bayan buɗewa, dole ne a yi amfani da LEDs a cikin awanni 168 a ≤30°C da ≤60% RH. Idan lokacin fallasa ya wuce awanni 168 ko kuma nuna danshi mai yawa, ana buƙatar gasa a 60°C ± 5°C na awanni 24 kafin reflow.

7. Shawarwarin Aikace-aikace

Wannan LED fari yana da kyau ga alamomin haske, maɓalli, alamomi, hasken baya na nuni, da kayan lantarki na gida. Masu zane dole ne su tabbatar da cewa da'irar tuki tana iyakance current ga mafi girman ƙarfafawa kuma ta haɗa da resistor na jerin don guje wa zafi. Saboda faɗin kusurwar gani (140°), LED ya dace da aikace-aikacen da ke buƙatar rarraba haske daidai a kan babban yanki. Don yanayin zazzabi mai girma, ana buƙatar rage gaba current kamar yadda aka nuna a Fig. 1-10.

8. Fa'idodin Fasaha Kwatanta

Idan aka kwatanta da LED fari na yau da kullun na 3.2×1.6 mm, wannan samfurin yana da kewayon rarraba wutar gaba mai faɗi (2.7–3.5 V) da matakan rarraba ƙarfin haske masu kyau (tsakanin 50 mcd), yana ba da damar daidaita haske sosai a cikin tsararru masu yawa na LED. Kusurwar gani 140° ya fi na'urorin da yawanci 120° faɗi, yana inganta daidaito a aikace-aikacen hasken baya da nuna alama. Thermal resistance na 450°C/W da aka ƙayyade ya yi ƙasa kaɗan ga wannan girman kwali, yana taimakawa wajen watsar da zafi.

9. Tambayoyin da Aka Yi Yawa

Q: Zan iya amfani da wannan LED a aikace-aikacen waje?A: Yanayin zazzabi na aiki shine -40°C zuwa +85°C, yana sa ya dace da aikace-aikacen cikin gida da wasu na waje, amma ana iya buƙatar ƙarin kariya ta muhalli (misali, rufin conformal) don yanayin danshi mai yawa ko iska mai lalata.
Q: Yaya zan magance ESD sensitivity?A: LED yana da darajar ESD HBM na 1000 V. Yi amfani da matakan kariya na ESD na yau da kullun ciki har da wuraren aiki da aka ƙarasa, ionizers, da marufi masu ɗaukar wutar lantarki.
Q: Wane magungunan tsaftacewa ne lafiya?A: Ana ba da shawarar isopropyl alcohol. A guji magungunan da za su iya lalata silicone encapsulant. Ba a ba da shawarar tsaftacewa ta ultrasonic ba.
Q: Me yasa aka raba ƙarfin wutar gaba sosai?A: Rarraba mai kyau yana ba da daidaito a cikin haske da launi a aikace-aikacen da ake amfani da LEDs da yawa a layi ɗaya ba tare da daidaita current ɗin kowane ɗayansu ba.

10. Misalin Aikace-aikace na Aiki

A cikin kayan gida na yau da kullun (misali, nuni na injin wanki), ana amfani da LEDs huɗu a cikin nau'in ƙarfin haske da wutar gaba ɗaya don samar da hasken baya daidai. Faɗin kusurwar gani 140° yana tabbatar da iya karantawa daga kowace hanya. Ana soldering LEDs akan PCB tare da pads na zafi da aka haɗa da copper pour don watsar da zafi. Gwaje-gwajen dogaro da aka yi bisa ga ƙayyadaddun sun nuna babu gazawa bayan awanni 1000 na gwajin rayuwa a 20 mA da 25°C na muhalli.

11. Tsarin Aiki

LED fari ya ƙunshi chip blue InGaN/GaN flip chip ko vertical chip da aka lulluɓe da phosphor YAG:Ce mai launin rawaya. Haske blue daga chip yana tada phosphor, wanda ke fitar da haske rawaya. Haɗin hasken blue da rawaya mai raguwa yana samar da haske fari. Daidaitaccen zazzabi na launi (CCT) ya dogara da abun da phosphor ya ƙunshi da kauri; yawancin nau'ikan suna cikin yankin fari mai sanyi (kimanin 5000K–7000K) bisa ga chromaticity coordinates da aka bayar.

12. Hanyoyin Ci gaba

Hanyoyin ci gaba a masana'antar LED sun haɗa da ƙara ƙarami (misali, kwalli 2.0×1.2 mm), haɓaka ƙarfin haske (niyya >130 lm/W ga wannan girman), inganta kwanciyar phosphor, da rage thermal resistance ta hanyar amfani da kayan substrate na zamani. Haɗin chips da yawa a cikin kwali ɗaya (CSP) da daidaitaccen rarraba mai kyau (<0.5-step MacAdam ellipse) yana zama daidaitacce ga aikace-aikacen manyan matsayi.