Fitilar LED ta 4mm Oval ta cikin rami - Ƙarfin haske 520-1500mcd - Ƙarfin lantarki na gaba 1.8-2.5V - 20mA - Launi Ja - Takaddun Fasaha na Hausa

1. Bayyani Game da Samfur

Wannan takarda ta bayyana cikakkun ƙayyadaddun fitilar LED ta 4mm oval ta cikin rami. An ƙera wannan kayan a matsayin mafita mai arha da aka fi so don aikace-aikacen da ke buƙatar daidaitaccen kusurwar kallo da babban fitar haske. Babban abin da aka fi mayar da hankali a kan ƙirarta shi ne dogaro da inganci don amfani a ciki da waje.

1.1 Fa'idodi na Asali da Kasuwar da Ake Nufi

Fitilar tana da tsarin radiyo mai santsi da daidaito wanda ke da alamar kusurwar kallo ta 110x50 digiri. Wannan ya sa ta dace musamman don aikace-aikacen da ke buƙatar rarraba haske mai daidaito daga kusurwoyi daban-daban. Na'urar tana amfani da fasahar epoxy mai ci gaba, wacce ke ba da kyakkyawar juriya ga danshi da kariya daga hasken UV. Wannan yana ƙara dorewarta kuma ya sa ta dace don dogon lokaci a cikin yanayin waje, yana rage raguwar aiki a tsawon lokaci. Manyan kasuwanni da aikace-aikacen da ake nufi sun haɗa da allunan alama masu cikakken launi, alamun talla, nunin saƙo, alamun bas, da amfani gabaɗaya a cikin sassan sadarwa, kwamfuta, kayan lantarki na mabukaci, da na'urorin gida.

2. Zurfin Binciken Ma'auni na Fasaha

Wannan sashe yana ba da cikakken bayani, fassarar haƙiƙa game da halayen lantarki, na gani, da na zafi waɗanda aka ayyana a cikin takaddun bayanai.

2.1 Madaidaicin Iyakar Ma'auni

Madaidaicin iyakar ma'auni suna ayyana iyakokin da za su iya haifar da lalacewa na dindindin ga na'urar. Waɗannan ba sharuɗɗan aiki na yau da kullun ba ne.

• Rushewar Wutar Lantarki (Pd):Matsakaicin 75 mW. Wannan shine jimillar wutar da fakitin LED zai iya watsawa azaman zafi.
• Matsakaicin Halin Yanzu na Gaba (I_F(PEAK)):90 mA, amma kawai a ƙarƙashin sharuɗɗa masu tsauri (duty cycle ≤ 1/10, faɗin bugun jini ≤ 10μs). Wannan ma'auni na gajerun bugun jini ne, ba aiki na ci gaba ba.
• Halayen Yanzu na DC na Gaba (I_F):30 mA ci gaba. Wannan shine shawarar matsakaicin halin yanzu don dogon lokaci mai dogaro.
• Rage Daraja:Dole ne a rage darajar halin yanzu na DC na gaba da layi 0.36 mA ga kowane digiri Celsius sama da yanayin zafi na muhalli na 30°C (T_A). Misali, a 85°C, matsakaicin halin yanzu na ci gaba da aka yarda ya yi ƙasa sosai da 30mA.
• Kewayon Yanayin Zafin Aiki (T_opr):-40°C zuwa +85°C.
• Kewayon Yanayin Zafin Ajiya (T_stg):-40°C zuwa +100°C.
• Zafin Solder na Jagora:Matsakaicin 260°C na dakika 5, ana auna shi 2.0mm daga jikin LED.

2.2 Halayen Lantarki da na Gani

Ana auna waɗannan ma'auni a daidaitaccen yanayin gwaji na T_A=25°C da I_F=20mA, sai dai idan an lura da wani abu.

• Ƙarfin Hasken (I_V):Ya kewayo daga mafi ƙarancin 520 mcd zuwa matsakaicin matsakaici na 1500 mcd. Ainihin ƙimar na'urar takamama ana ƙayyade ta ta lambar kwandon (duba Sashe na 4). Aunin ya haɗa da juzu'in gwaji na ±15%.
• Kusurwar Kallo (2θ_1/2):110 x 50 digiri (tsarin oval). An ayyana kusurwar inda ƙarfin haske ya ragu zuwa rabin ƙimar axial, ana auna shi tare da juzu'i na ±2 digiri.
• Matsakaicin Tsawon Tsawon Watsawa (λ_P):Yawanci 631 nm. Wannan shine tsawon zango inda rarraba ƙarfin bakan ya fi girma.
• Matsakaicin Tsawon Zango (λ_d):Ya kewayo daga 617 nm zuwa 629 nm, an rarraba shi zuwa takamaiman lambobi (H28, H29, H30). Wannan shine tsawon zango guda ɗaya da idon ɗan adam ya gane wanda ke ayyana launi (ja).
• Rabin Faɗin Layin Bakan (Δλ):Kimanin 20 nm. Wannan yana nuna tsantsar bakan hasken ja.
• Ƙarfin Lantarki na Gaba (V_F):Ya kewayo daga 1.8V (mafi ƙanƙanta) zuwa 2.5V (matsakaici), tare da ƙimar yau da kullun na 2.1V a 20mA.
• Halin Yanzu na Baya (I_R):Matsakaicin 100 μA a ƙarfin lantarki na baya (V_R) na 5V.Muhimmin Bayanin Kula:Ba a ƙera na'urar don aiki na baya ba; wannan yanayin gwaji don siffanta kawai ne.

3. Ƙayyadaddun Tsarin Rarrabuwa

An rarraba samfurin zuwa kwanduna bisa mahimman ma'auni na aiki don tabbatar da daidaito a cikin aikace-aikace.

3.1 Rarrabawar Ƙarfin Hasken

A I_F=20mA, ana rarraba LEDs zuwa kwanduna huɗu na ƙarfi. Juzu'in kowane iyakar kwandon shine ±15%.

• Kwandon M:520 mcd (Mafi ƙanƙanta) zuwa 680 mcd (Matsakaici)
• Kwandon N:680 mcd zuwa 880 mcd
• Kwandon P:880 mcd zuwa 1150 mcd
• Kwandon Q:1150 mcd zuwa 1500 mcd

3.2 Rarrabawar Matsakaicin Tsawon Zango

A I_F=20mA, ana rarraba LEDs zuwa kwanduna uku na tsawon zango don sarrafa daidaiton launi. Juzu'in kowane iyakar kwandon shine ±1 nm.

• Kwandon H28:617.0 nm zuwa 621.0 nm
• Kwandon H29:621.0 nm zuwa 625.0 nm
• Kwandon H30:625.0 nm zuwa 629.0 nm

Lambar rarrabuwar ƙarfi (Iv bin) ana yiwa alama a kowane jakar tattarawa don bin diddigin.

4. Binciken Lanƙwasa Aiki

Takaddun bayanai yana nuni zuwa lanƙwasan halaye na yau da kullun waɗanda ke da mahimmanci don ƙira. Duk da yake ba a nuna su a nan ba, yawanci sun haɗa da:

• Dangantakar Ƙarfin Hasken da Halin Yanzu na Gaba (Lanƙwasa I-V):Yana nuna yadda fitar haske ke ƙaruwa tare da halin yanzu, har zuwa matsakaicin iyakokin da aka ƙayyade.
• Dangantakar Ƙarfin Hasken da Yanayin Zafin Muhalli:Yana nuna raguwar ƙimar fitar haske yayin da zafin haɗin gwiwa ke ƙaruwa.
• Ƙarfin Lantarki na Gaba da Halin Yanzu na Gaba:Yana kwatanta dangantakar mara layi, mai mahimmanci don ƙididdigar ƙimar resistor na jerin da rushewar wutar lantarki.
• Rarraba Bakan:Jadawali da ke nuna ƙarfin da aka watsa a duk faɗin tsawon zango, wanda ke tsakiya a kusa da matsakaicin tsawon zango na 631 nm.

Ya kamata masu ƙira su tuntubi waɗannan lanƙwasan don fahimtar aiki a ƙarƙashin sharuɗɗan da ba na daidaitattun ba (misali, halayen tuƙi daban-daban ko yanayin zafi).

5. Bayanin Injiniya da Tattarawa

5.1 Girman Bayyani

Fitilar tana da fakitin diamita na T-1 (3mm) da aka fi so tare da ruwan tabarau na oval 4mm. Muhimman bayanan girma sun haɗa da:

• Duk girmansu suna cikin millimeters (ana ba da inci a cikin juzu'i).
• Juzu'i na gabaɗaya shine ±0.25mm sai dai idan an ƙayyade wani abu.
• Matsakaicin tsawaita resin a ƙarƙashin flange shine 1.0mm.
• Ana auna tazarar jagora inda jagororin suka fito daga jikin fakitin.

5.2 Gano Polarity

Ga LEDs na cikin rami, yawanci ana gano cathode ta wurin wuri mai lebur a gefen ruwan tabarau, gajeren jagora, ko wasu alamomi. Ya kamata a tabbatar da hanyar tantancewa ta musamman daga zanen girma. Daidaitaccen polarity yana da mahimmanci don aiki.

5.3 Ƙayyadaddun Tattarawa

Ana tattara LEDs don sarrafa yawa:

• Fakitin Rukuni:1000, 500, ko 250 guda a kowane jakar tattarawa mai hana tashin hankali.
• Kwandon Ciki:Ya ƙunshi jakunkunan tattarawa 8, jimlar guda 8000.
• Kwandon Waje:Ya ƙunshi kwandunan ciki 8, jimlar guda 64,000.
• A cikin kowane yanki na jigilar kaya, kawai fakitin ƙarshe na iya zama ba cikakke ba.

6. Jagororin Solder da Haɗawa

Daidaitaccen sarrafawa yana da mahimmanci don hana lalacewa.

6.1 Ajiya

Don dogon lokacin ajiya a waje da fakitin asali (fiye da watanni 3), ajiye a cikin akwati mai rufi tare da busasshen abu ko a cikin yanayin nitrogen. Ajiyar bai kamata ya wuce 30°C da zafi na 70% ba.

6.2 Tsaftacewa

Yi amfani da kaushi na barasa kamar isopropyl alcohol idan tsaftacewa ya zama dole.

6.3 Siffantar Jagora

Lankwasa jagororin a wuri aƙalla 3mm daga gindin ruwan tabarau na LED. Kada ka yi amfani da gindin ruwan tabarau azaman fulcrum. Yi siffar kafin solder a yanayin zafi na daki. Yi amfani da ƙaramin ƙarfin damƙa yayin haɗin PCB.

6.4 Tsarin Solder

Muhimmin Doka:Kiyaye mafi ƙarancin tsabta na 2mm daga gindin ruwan tabarau zuwa wurin solder. Kada a taɓa nutsar da ruwan tabarau cikin solder.

• Ƙarfe na Solder:Matsakaicin zafin jiki 350°C, matsakaicin lokaci dakika 3 (sau ɗaya kawai).
• Solder Wave:Yi pre-heat zuwa matsakaicin 100°C har zuwa dakika 60. Solder wave a matsakaicin 260°C har zuwa dakika 5.
• Mahimmanci:IR reflow bai dace da wannan nau'in LED na cikin rami ba. Yawan zafi ko lokaci na iya haifar da nakasar ruwan tabarau ko gazawar bala'i.

7. Shawarwari na Aikace-aikace da Ƙira

7.1 Ƙirar Da'irar Tuƙi

LEDs na'urori ne masu aiki da halin yanzu. Don tabbatar da daidaitaccen haske lokacin haɗa LEDs da yawa a layi daya, yana dashawara mai ƙarfidon amfani da resistor mai iyakance halin yanzu a cikin jerin tare da kowane LED (Da'irar A). Tuƙin LEDs da yawa a layi daya kai tsaye daga tushen ƙarfin lantarki (Da'irar B) ba a ba da shawarar ba saboda bambance-bambance a cikin ƙarfin lantarki na gaba na kowane LED (V_F), wanda zai haifar da bambance-bambance masu yawa a cikin halin yanzu, saboda haka, haske.

Ƙimar resistor na jerin (R_s) ana iya ƙididdige shi ta amfani da Dokar Ohm: R_s= (V_supply- V_F) / I_F. Yi amfani da matsakaicin V_Fdaga takaddun bayanai (2.5V) don tabbatar da cewa halin yanzu bai wuce I_Fda ake so ba (misali, 20mA) a ƙarƙashin duk yanayi.

7.2 Kariya daga Zubar da Lantarki Mai Tsanani (ESD)

Waɗannan na'urori suna da hankali ga zubar da lantarki mai tsanani. Dole ne a aiwatar da matakan rigakafi:

• Dole ne ma'aikata su sanya bel ɗin wuyan da aka kafa ko safofin hannu masu hana tashin hankali.
• Dole ne duk kayan aiki, teburin aiki, da rumbun ajiya su kasance da tushe daidai.
• Yi amfani da busa ion don daidaita cajin tsaye wanda zai iya taruwa akan ruwan tabarau na filastik.
• Kiyaye bayanan horo da takaddun shaida ga ma'aikata a wuraren da aka kare ESD.

7.3 Gudanar da Zafi

Duk da yake rushewar wutar lantarki yana da ƙasa (75mW matsakaici), bin lanƙwasa rage daraja don halin yanzu na gaba yana da mahimmanci don tsawon rai, musamman a cikin yanayin yanayin zafi mai girma ko wuraren da aka rufe. Tabbatar da isasshen iska idan an yi amfani da LEDs da yawa a cikin tsari mai yawa.

8. Kwatancen Fasaha da Abubuwan da Ake La'akari

Idan aka kwatanta da LEDs marasa watsawa ko ƙunƙuntaccen kusurwa, babban abin da ya bambanta wannan ɓangaren shine kusurwar kallonsa na oval, fadi (110x50°), da daidaito, yana mai da shi cikakke don alamun da gani daga kusurwoyi masu karkata yake da mahimmanci. Amfani da ruwan tabarau ja mai watsawa da epoxy mai juriya ga danshi yana ba da ma'auni na aiki da ƙarfin muhalli wanda ya dace da aikace-aikacen waje masu hankali ga farashi. Masu ƙira da ke kwatanta zaɓuɓɓuka yakamata su mai da hankali kan takamaiman kwandon ƙarfin haske da ake buƙata don buƙatun haske na aikace-aikacensu da kuma kwandon tsawon zango na yau da kullun don daidaiton launi a cikin raka'o'i da yawa.

9. Tambayoyin da Ake Yawan Yi (Dangane da Ma'auni na Fasaha)

Q1: Shin zan iya tuƙa wannan LED a 30mA ci gaba?

A1: Matsakaicin halin yanzu na DC na gaba shine 30mA a 25°C. Duk da haka, don aiki mai dogaro da tsawon rai, yana da kyau a yi aiki a ƙasa da wannan matsakaicin, yawanci a 20mA kamar yadda yanayin gwaji ya nuna. Bugu da ƙari, dole ne a rage darajar halin yanzu don yanayin zafi na muhalli sama da 30°C.

Q2: Me yasa akwai juzu'i na ±15% akan iyakokin kwandon ƙarfin haske?

A2: Wannan yana lissafin bambancin aunawa yayin gwajin samarwa. Yana nufin na'urar daga Kwandon M (520-680mcd) za ta iya gwaji har zuwa ƙasa kamar 442mcd (520 -15%) ko sama kamar 782mcd (680 +15%) a ƙarƙashin irin wannan yanayin gwaji, ko da yake za a rarraba ta kuma a yi mata alama bisa ga kwandonta na yau da kullun.

Q3: Shin zan iya amfani da wannan LED tare da wadata 5V?

A3: Ee, amma DOLE ne ka yi amfani da resistor mai iyakance halin yanzu na jerin. Misali, don cimma ~20mA tare da V na yau da kullun_Fna 2.1V: R = (5V - 2.1V) / 0.020A = 145 Ohms. Daidaitaccen resistor na 150 Ohm zai dace. Koyaushe yi lissafi ta amfani da matsakaicin V_Fdon tabbatar da cewa halin yanzu bai wuce iyakar da ake so ba.

Q4: Shin wannan LED ya dace da aikace-aikacen mota?

A4: Kewayon yanayin zafin aiki (-40°C zuwa +85°C) ya ƙunshi yanayin mota da yawa. Duk da haka, aikace-aikacen mota yawanci suna buƙatar abubuwan da suka cika takamaiman ƙayyadaddun inganci da dogaro (misali, AEC-Q102) waɗanda ba a ƙayyade su a cikin wannan takaddun bayanai na gabaɗaya ba. Za a buƙaci ƙarin cancanta.

10. Misalin Aikace-aikace na Aiki

Yanayi: Ƙirar mai nuna "KUNNA" mai sauƙi don na'urar da aka kunna ta hanyar adaftan bangon DC 12V.

1. Manufa:Tuƙi LED ɗaya a kusan 15mA don daidaita haske da tsawon rai.
2. Ƙididdiga:Yin amfani da matsakaicin V_Fna 2.5V don aminci. R_s= (12V - 2.5V) / 0.015A = 633 Ohms. Mafi kusancin ƙimar daidaitaccen shine 620 Ohms.
3. Sake Ƙididdigewa:Halin yanzu na ainihi tare da 620Ω da V na yau da kullun_Fna 2.1V: I_F= (12V - 2.1V) / 620Ω ≈ 16.0mA. Wannan yana cikin kewayon aminci.
4. Wutar Lantarki a cikin Resistor:P = I²* R = (0.016)²* 620 ≈ 0.16W. Yi amfani da aƙalla resistor 1/4W (0.25W).
5. Haɗawa:Shigar da LED cikin PCB, girmama polarity. Lankwasa jagororin 3mm daga jiki idan ya cancanta. Solder, kiyaye ƙarshen ƙarfe >2mm daga gindin ruwan tabarau na <3 seconds a 350°C.

Wannan misalin ya nuna mahimmancin iyakance halin yanzu, zaɓin ɓangaren, da dabarar solder da ta dace.