Green-Yellow SMD LED 3.2x1.6x0.7mm - Forward Voltage 1.8-2.4V - Power 72mW - Takardar Bayani ta Turanci

1. Bayani da Siffofin Muhimmanci

1.1 Bayani na Gabaɗaya

Wannan samfurin LED shine LED SMD mai launin kore-rawaya wanda aka yi ta amfani da guntu mai kore-rawaya. Girman kunshin shine 3.2mm x 1.6mm x 0.7mm. An ƙera shi don haɗawa a saman bene kuma yana dacewa da hanyoyin SMT na yau da kullun.

1.2 Siffofi

• Babban kusurwar kallo mai faɗi har zuwa digiri 140.
• Ya dace da duk hanyoyin haɗawa na SMT da narkewar ƙarfe.
• Matsayin damshin hankali: Mataki 3 (MSL 3).
• Ya bi ka'idodin RoHS.

1.3 Aikace-aikace

• Alamomi na gani.
• Maɓallai, alamomi, da nuni.
• Haskakawa gabaɗaya da alamomi.

2. Girman Kunshin da Tsarin Solder

2.1 Girman Injiniya

Kunshin LED yana auna 3.20mm x 1.60mm x 0.70mm (tsawon x faɗi x tsayi). Duban sama yana nuna siffar rectangular. Duban ƙasa yana nuna babban tafin anode (tafin 2) da ƙaramin tafin cathode (tafin 1). Duban gefe yana nuna tsayin duka. An yi alamar polarity a saman saman. An ba da shawarar shimfidar tafin solder tare da takamaiman girma: tafin tsakiya na 1.50mm x 1.60mm don babban tafin, da tafin gefe biyu na 0.30mm x 1.60mm don sauran tashoshi. Duk girma suna da millimeters tare da haƙuri na ±0.2mm sai dai in an faɗi.

Fig.1-1 zuwa Fig.1-5 suna nuna saman, ƙasa, gefen, alamar polarity, da tsarin solder da aka ba da shawara.

3. Siffofin Lantarki da Hasken gani

3.1 Ma'anar Ma'auni

A yanayin gwaji IF=20mA da Ts=25°C, LED yana nuna waɗannan siffofi:

• Faɗin Rabin Bakan (Δλ):Yawanci 15nm.
• Wutar Gaba (VF):An rarraba zuwa ƙungiyoyi uku: B0 (1.8-2.0V), C0 (2.0-2.2V), D0 (2.2-2.4V). Ƙimar yau da kullun sun bambanta a cikin waɗannan jeri.
• Tsawon Raƙuman Ruwa mai Girma (λD):An rarraba zuwa ƙungiyoyi biyar wanda ya ƙunshi 562.5nm zuwa 575nm: A20 (562.5-565nm), B10 (565-567.5nm), B20 (567.5-570nm), C10 (570-572.5nm), C20 (572.5-575nm).
• Ƙarfin Hasken (IV):An rarraba zuwa ƙungiyoyi shida daga 12mcd zuwa 100mcd: B00 (12-18mcd), C00 (18-28mcd), D00 (28-43mcd), E00 (43-65mcd), F10 (65-80mcd), F20 (80-100mcd).
• Kusurwar Kallo (2θ1/2):Digiri 140 na yau da kullun.
• Wutar Baya (IR):10μA mafi girma a VR=5V.
• Juriya na Zafi (RTHJ-S):450°C/W mafi girma.

3.2 Matsakaicin Ƙaddara

Hakuri na ma'auni: VF ±0.1V, λD ±2nm, IV ±10%.

4. Lankwasa Siffofin Hasken gani na yau da kullun

Takardar bayani tana ba da lankwasa siffofi da yawa waɗanda aka auna a Ta=25°C sai dai in an faɗi:

4.1 Wutar Gaba da Wutar Gaba

Hoto 1-6 yana nuna wutar gaba a matsayin aikin wutar gaba. A 20mA, wutar gaba kusan 1.8-2.4V ya danganta da bin. Lankwasawa yana nuna siffar diode na yau da kullun mai tsauri.

4.2 Wutar Gaba da Ƙarfin Dangi

Hoto 1-7 yana nuna cewa ƙarfin dangi yana ƙaruwa da wutar gaba. A 20mA, ƙarfin dangi kusan 1.0 (daidaitacce). A 30mA (mafi girma), ƙarfi ya fi girma amma ana buƙatar taka tsantsan saboda iyakokin zafi.

4.3 Zazzabin Pin da Ƙarfin Dangi

Hoto 1-8 yana nuna cewa yayin da zazzabin yanayi ya tashi, ƙarfin dangi yana raguwa. A 100°C, ƙarfin yana faɗuwa zuwa kusan 0.8 na ƙimar a 25°C.

4.4 Zazzabin Pin da Wutar Gaba

Hoto 1-9 yana nuna lankwasawar ragewa: iyakar wutar gaba mai izini yana raguwa yayin da zazzabin pin ya tashi. A 100°C, mafi girman wutar shine kusan 10mA.

4.5 Wutar Gaba da Tsawon Raƙuman Ruwa mai Girma

Hoto 1-10 yana nuna canjin shuɗi kaɗan tare da ƙara wutar: a 20mA tsawon raƙuman ruwa yana kusa da 570nm, yana raguwa zuwa kusan 568nm a 30mA.

4.6 Ƙarfin Dangi da Tsawon Raƙuman Ruwa

Hoto 1-11 yana nuna rarraba bakan. Babban haske yana kusa da 570nm tare da faɗin rabin 15nm. Bakan yana da ƙunci kuma na yau da kullun ga LED masu kore-rawaya.

4.7 Tsarin Hasken haske

Hoto 1-12 yana nuna siffofin haskakawa. LED yana da babban kusurwar kallo na 140°, wanda ke da amfani ga aikace-aikacen alamomi waɗanda ke buƙatar ɗaukar hoto mai faɗi.

5. Bayani kan Marufi

5.1 Ƙayyadaddun Marufi

Ana yin marufin LED a cikin tef da reel tare da guda 4000 a kowane reel. Tef ɗin yana da faɗi 8mm da tazara 4mm. An yi alamar polarity a bayyane akan tef.

5.2 Girman Tef da Reel

Girman aljihun tef ɗin an tsara su don riƙe kunshin 3.2x1.6x0.7mm lafiya. Reel yana da diamita na waje 178±1mm, diamita na cibiya 60±1mm, da faɗin tef 8.0±0.1mm.

5.3 Bayani kan Lakabi

Kowane reel yana da lakabi tare da lambar sashi, lambar ƙayyadaddun, lambar kuri'a, lambar bin (ciki har da flux, bin chromaticity, wutar gaba, lambar tsawon raƙuman ruwa), adadi, da lambar kwanan wata.

5.4 Marufi mai karewa daga Damshi

Ana rufe reels a cikin jakar hana damshi tare da bushewa da katin nuna damshi. Ana lakabi jakar da taka tsantsan game da ESD da sanarwar matakin damshin hankali.

5.5 Abubuwan gwajin Dogaro da Yanayi

An gwada LEDs bisa ga ka'idojin JEDEC:

• Narkewar reflow (260°C max, 10s, 2 hawan keke)
• Hawan keke na zazzabi (-40°C zuwa 100°C, 100 hawan keke)
• Girgizar zafi (-40°C zuwa 100°C, 300 hawan keke)
• Ajiye a babban zazzabi (100°C, 1000h)
• Ajiye a ƙaramin zazzabi (-40°C, 1000h)
• Gwajin rayuwa (25°C, IF=20mA, 1000h)

Ka'idojin karɓa: babu gazawar da aka yarda daga cikin guda 22 a kowane gwaji.

5.6 Ka'idojin gazawa

Bayan gwajin dogaro, canje-canje masu zuwa ana ɗaukarsu gazawa:

• VF ya ƙaru sama da sau 1.1 na iyakar ƙayyadaddun sama.
• IR ya ƙaru sama da sau 2 na iyakar ƙayyadaddun sama.
• Hasken haske ya faɗi ƙasa da sau 0.7 na iyakar ƙayyadaddun ƙasa.

6. Umarnin Narkewar Solder SMT

6.1 Ma'aunin Narkewa na Reflow

Ana ba da shawarar yanayin narkewar solder don tabbatar da narkewar da ta dace ba tare da lalata LED ba. Muhimman ma'auni:

• Matsakaicin hawan (Tsmax zuwa Tp): mafi girma 3°C/s
• Preheat: 150°C zuwa 200°C na 60-120s
• Lokaci sama da 217°C: 60-150s
• Matsayin zazzabi mafi girma: 260°C, mafi girma 10s
• Matsakaicin sanyi: mafi girma 6°C/s
• Jimlar lokaci daga 25°C zuwa mafi girma: mafi girma mintuna 8

Bai kamata a yi narkewar reflow fiye da sau biyu ba. Idan fiye da sa'o'i 24 tsakanin matakan narkewar solder guda biyu, LEDs na iya ɗaukar damshi kuma su lalace.

6.2 Narkewa da Gyara da hannu

Narkewa da hannu: zazzabin ƙarfe ƙasa da 300°C, lokaci ƙasa da daƙiƙa 3, sau ɗaya kawai. Ya kamata a guji gyara; idan ya zama dole, yi amfani da ƙarfe mai kai biyu.

7. Tsare-tsare na Ajiye da Sarrafa

7.1 Yanda Ake Kula da Muhalli

Yanayin aiki ya kamata ya kasance da adadin sulfur ƙasa da 100PPM. Abubuwan halogen: Br<900PPM, Cl<900PPM, jimlar Br+Cl<1500PPM. Abubuwan da ke tashi (VOCs) na iya shiga cikin rufin silicone kuma su haifar da canza launi; guji mannaye da ke fitar da tururin kwayoyin halitta.

7.2 Sarrafa Injiniya

Yi amfani da tweezers a gefen; kar a taɓa ko danna ruwan tabarau na silicone kai tsaye. Ka guji damuwa na injiniya bayan narkewa. Kar a karkatar da PCB.

7.3 Yanayin Ajiye

Idan katin nuna damshi ya nuna damshi mai yawa ko kuma lokacin ajiye ya wuce, ana buƙatar gasawa.

7.4 ESD da Tsarin Kewayawa

LEDs suna da hankali ga fitar da wutar lantarki (ESD) da matsanancin wutar lantarki (EOS). Ya kamata a aiwatar da matakan kariya na ESD masu dacewa. A cikin tsarin kewayawa, koyaushe haɗa da resistor mai iyakance wutar don hana wutar wuce iyakar ƙaddara. Dole ne a guji wutar baya domin tana iya haifar da ƙaura da lalacewa.

7.5 Tsaftacewa

Idan an buƙaci tsaftacewa, yi amfani da isopropyl alcohol. Kar a yi amfani da masu narkewa da za su iya lalata resin kunshin. Ba a ba da shawarar tsaftacewa da ultrasonic ba saboda yana iya lalata LED.