ELUC3535NUB UVC LED Takardar Bayani - 3.5x3.5x1.3mm - 5.0-7.5V - 0.13W - 270-285nm - Takardar Fasaha ta Hausa

1. Bayanin Samfur

Jerin ELUC3535NUB yana wakiltar madaidaicin mafita na LED mai tushen yumbu, wanda aka ƙera musamman don aikace-aikacen ultraviolet C (UVC). An ƙera wannan samfurin don ba da aiki mai daidaito a cikin yanayi masu wuyar gaske inda ingancin kashe kwayoyin cuta ya fi muhimmanci. Ginin sa na asali yana amfani da wani abu mai tushen yumbu, wanda ke ba da ingantaccen sarrafa zafi fiye da na al'ada na fakitin robobi, wani muhimmin abu ne don kiyaye tsawon rayuwar LED da kwanciyar hankali na fitarwa a aikace-aikacen UVC.

Babban kasuwar da aka yi niyya don wannan ɓangaren shine sashin kashe kwayoyin cuta da tsarkakewa. Wannan ya haɗa da aikace-aikace kamar tsarin tsarkake ruwa, na'urorin tsarkake iska, kayan aikin kashe kwayoyin cuta na saman, da tsarkake kayan aikin likitanci. Ƙirar samfurin ta ba da fifiko ga abubuwan da suka fi muhimmanci ga waɗannan amfanin: ƙarfin haske a cikin kewayon kashe kwayoyin cuta, ƙaƙƙarfan gini don tsawon rayuwa, da dacewa da tsarin haɗaɗɗiyar fasahar haɗaɗɗiyar saman (SMT).

2. Zurfin Bayanin Ma'auni na Fasaha

2.1 Matsakaicin Matsakaicin Matsakaici

An ƙididdige na'urar don matsakaicin halin yanzu na DC gaba (I_F) na 100 mA. Duk da haka, yanayin aiki na yau da kullun da aka ƙayyade a cikin bayanin oda shine 20 mA. Wannan raguwa yana da mahimmanci don tabbatar da dogon lokacin aminci da hana lalacewar haɗin semiconductor cikin sauri. Matsakaicin zafin haɗin gwiwa (T_J) shine 100°C, tare da juriya na zafi (R_th) daga haɗin gwiwa zuwa yanayi na 65 °C/W. Wannan ƙimar juriya na zafi shine muhimmin ma'auni don ƙirar heatsink; wuce gona da iri na zafin haɗin gwiwa na iya haifar da gazawa mai tsanani ko rage fitar da haske mai haske.

Na'urar tana ba da kariyar ESD har zuwa 2 kV (Samfurin Jikin Mutum), wanda shine matakin kariya na yau da kullun don sarrafawa a yawancin yanayin masana'antu. Kewayon zafin aiki daga -30°C zuwa +85°C ne, kewayon zafin ajiya daga -40°C zuwa +100°C, yana tabbatar da dacewa ga yanayin yanayi da yanayin ajiya daban-daban na duniya.

2.2 Halayen Hoto da Lantarki

Ana auna fitarwar farko ta hoto a cikin ƙarfin haske (mW), ba ƙarfin haske (lm) ba, saboda wannan ba mai fitar da UV mai gani ba ne. Matsakaicin ƙarfin haske a lokacin aikin tuƙi na 20 mA shine 2 mW, tare da mafi ƙarancin ƙimar da aka tabbatar da 1 mW kuma matsakaicin 2.5 mW don lambar oda da aka jera. Matsakaicin tsayin raƙuman ruwa yana cikin kewayon 270 nm zuwa 285 nm, wanda yana cikin mafi inganciyar ƙungiyar don aikin kashe kwayoyin cuta, yana lalata DNA/RNA na ƙananan ƙwayoyin cuta.

A lantarki, ƙarfin lantarki gaba (V_F) a 20 mA ya bambanta daga 5.0 V zuwa 7.5 V. Wannan ƙarfin lantarki gaba mai girma yana da halayen LED na ultraviolet mai zurfi. Matsakaicin kusurwar gani shine 120°, wanda aka ayyana shi azaman kusurwar da ƙarfinsa ya rabi na matsakaicin ƙima (2θ_1/2).

3. Bayanin Tsarin Rarraba

An rarraba samfurin bisa cikakken tsarin rarraba don tabbatar da daidaito na musamman na aikace-aikace. Wannan tsarin ya ƙunshi ma'auni guda uku masu mahimmanci: Ƙarfin Hasken Hasken, Matsakaicin Tsawon Raƙuman Ruwa, da Ƙarfin Lantarki Gaba.

3.1 Kwandon Ƙarfin Hasken Hasken

An rarraba ƙarfin haske zuwa nau'ikan uku: Q0A (1.0-1.5 mW), Q0B (1.5-2.0 mW), da Q0C (2.0-2.5 mW). Wannan yana ba masu ƙira damar zaɓar LED bisa ga ƙarfin hasken da ake buƙata don tsarin su, tare da ƙuntatawa fiye da gabaɗaya ƙananan/matsakaicin ƙayyadaddun bayanai.

3.2 Kwandon Matsakaicin Tsawon Raƙuman Ruwa

Matsakaicin tsayin raƙuman ruwa yana da mahimmanci ga ingancin UVC. Kwandon su ne: U27A (270-275 nm), U27B (275-280 nm), da U28 (280-285 nm). Ƙwayoyin cuta daban-daban suna da mafi girman hankali a cikin bakan UVC, don haka wannan rarrabuwar yana ba da damar ingantaccen ƙirar tsarin.

3.3 Kwandon Ƙarfin Lantarki Gaba

An rarraba ƙarfin lantarki gaba cikin ƙaruwa na 0.5V daga 5.0V zuwa 7.5V (misali, 5055 don 5.0-5.5V, 5560 don 5.5-6.0V, da sauransu). Madaidaicin V_Fa cikin jeri yana sauƙaƙa ƙirar direba, yana tabbatar da rarraba halin yanzu daidai lokacin da aka haɗa LED da yawa a layi daya.

4. Binciken Lankwasa Aiki

4.1 Bakan

Lankwasa rarraba bakan yana nuna ƙaramin fitarwa mai tsayi a kusa da ƙayyadadden tsayin raƙuman ruwa (misali, ~275nm), tare da ƙaramin fitarwa a wajen ƙungiyar UVC. Wannan tsarkin bakan yana da fa'ida saboda yana tabbatar da cewa makamashi yana tattarawa a cikin kewayon kashe kwayoyin cuta.

4.2 Dangantakar Ƙarfin Hasken Hasken da Halin Yanzu Gaba

Lankwasa tana nuna alaƙar ƙasa-layin layi. Yayin da fitarwa ke ƙaruwa tare da halin yanzu, inganci (mW/mA) yana raguwa a manyan halayen yanzu saboda ƙaruwar zafin haɗin gwiwa da sauran tasirin da ba su dace ba. Wannan yana nuna mahimmancin sarrafa zafi da aiki a cikin yanayin da aka ba da shawarar.

4.3 Halin Yanzu Gaba da Ƙarfin Lantarki Gaba

Lankwasa I-V tana nuna alaƙar ƙididdiga ta yau da kullun na diode. Ƙayyadadden kewayon V_Fa 20mA an nuna shi a sarari. Lankwasa tana da mahimmanci don ƙirar direba mai madaidaicin halin yanzu, saboda ƙaramin canji a cikin ƙarfin lantarki na iya haifar da babban canji a cikin halin yanzu.

4.4 Dangantakar Ƙarfin Hasken Hasken da Zafin Yanayi

Wannan lankwasa tana nuna ƙimar zafin jiki mara kyau na fitarwar LED. Yayin da yanayin yanayi (kuma saboda haka haɗin gwiwa) ya tashi, ƙarfin haske yana raguwa. Dole ne a yi la'akari da wannan raguwar zafin jiki a cikin ƙirar tsarin don tabbatar da aikin kashe kwayoyin cuta mai daidaito a duk kewayon zafin aiki.

4.5 Lankwasa Ragewa

Lankwasa ragewa ita ce mafi mahimmanci zane don aiki mai aminci. Yana ayyana matsakaicin halin yanzu gaba da aka yarda a matsayin aikin zafin yanayi. Don hana wuce gona da iri na matsakaicin zafin haɗin gwiwa, dole ne a rage halin yanzu na tuƙi yayin da zafin yanayi ke ƙaruwa. Misali, a zafin yanayi na 85°C, matsakaicin halin yanzu da aka yarda ya yi ƙasa sosai fiye da matsakaicin matsakaicin ƙimar 100mA.

5. Bayanin Injiniya da Marufi

5.1 Girman Injiniya

Fakitin yana da ƙaramin ƙafa na 3.5 mm x 3.5 mm tare da tsayi na 1.3 mm. Zanen girma ya ƙayyade wurin anode (pad 2), cathode (pad 1), da matsakaicin pad na zafi (pad 3). Pad na zafi yana da mahimmanci don ingantaccen heatsink; dole ne a yi amfani da shi da kyau zuwa wani pad mai ɗaukar zafi akan PCB, wanda ya kamata a haɗa shi da jiragen ƙasa na ciki ko heatsink na waje.

5.2 Marufin Kaset da Reel

Ana ba da LED akan kaset mai ɗaukar hoto, wanda aka nannade akan reels mai ɗauke da guda 1000. An ba da girman tef da ƙayyadaddun reel (misali, diamita na reel 180mm) don tabbatar da dacewa da injunan zaɓe da wuri ta atomatik. An ƙara haɗa abubuwan a cikin jakar aluminum mai hana danshi mai ɗauke da busasshiyar abu don hana ɗaukar danshi yayin ajiya, wanda ke da mahimmanci ga fakitin yumbu don guje wa "popcorning" yayin siyar da reflow.

6. Jagororin Siyarwa da Haɗawa

ELUC3535NUB ya dace da daidaitattun hanyoyin siyar da reflow na SMT. Manyan shawarwari sun haɗa da: amfani da bayanin martaba na reflow mara gubar wanda ya dace da iyakokin zafi na ɓangaren, guje wa damuwa na injiniya akan LED yayin dumama da sanyaya, da iyakance adadin zagayowar reflow zuwa matsakaicin biyu. Bayan siyarwa, bai kamata a lanƙwasa PCB ba, saboda hakan na iya haifar da damuwa na injiniya akan haɗin gwiwar siyarwa da jikin yumbu, wanda zai iya haifar da fashewa ko gazawa.

7. Shawarwari na Aikace-aikace da Abubuwan Ƙira

7.1 Yanayin Aikace-aikace na Yau da Kullun

• Kashe Kwayoyin Iska A Tsaye:Ana amfani da shi a cikin tsarin HVAC ko na'urorin tsarkake iska, inda hasken UVC ke haskaka ɗaki wanda iska ke wucewa ta cikinsa.
• Kashe Kwayoyin Sama:An haɗa shi cikin na'urori don tsarkake wayoyin hannu, kayan aiki, ko tebur.
• Tsarkake Ruwa:Ana amfani da shi a cikin masu tsarkake ruwa na amfani da wuri, inda ruwa ke gudana ta wani hular quartz mai bayyana UVC wanda ke ɗauke da LED.

7.2 Muhimman Abubuwan Ƙira

• Gudanar da Zafi:Wannan shine mafi mahimmancin abu guda ɗaya. Yi amfani da PCB tare da ramukan zafi a ƙarƙashin pad na zafi wanda aka haɗa zuwa manyan jujjuyawar tagulla ko heatsink na waje. Kula da zafin haɗin gwiwa.
• Halin Yanzu na Tuƙi:Yi aiki a ko ƙasa da shawarar 20mA don tsawon rayuwa. Yi amfani da direba mai madaidaicin halin yanzu, ba tushen madaidaicin ƙarfin lantarki ba.
• Kayan Hoto:Taga fitarwa shine gilashin quartz. Tabbatar cewa kowane na'urorin gani na biyu ko murfin kariya an yi su ne da kayan watsa UVC (misali, silica da aka narke, wasu robobi na musamman). Gilashin al'ada da yawancin robobi suna ɗaukar hasken UVC.
• Aminci:Hasken UVC yana da illa ga idanu da fata. Dole ne akwatin ya hana duk wani ɓarkewar hasken UV yayin aiki. Haɗa maɓallan kulle idan akwatin za a iya buɗe yayin amfani.

8. Kwatancen Fasaha da Bambance-bambance

Babban bambance-bambancen ELUC3535NUB shine fakitin sa na yumbu (AIN - Aluminum Nitride) da ruwan tabarau na gilashin quartz. Fakitin yumbu yana ba da mafi kyawun yadda ake sarrafa zafi fiye da robobi (misali, PPA, PCT), yana haifar da ƙananan zafin aiki na haɗin gwiwa a halin yanzu guda ɗaya na tuƙi, wanda kai tsaye yana fassara zuwa tsawon rayuwa da ƙarin kwanciyar hankali na fitarwa. Ruwan tabarau na gilashin quartz yana ba da mafi kyawun watsa UV da juriya ga duhu (solarization) idan aka kwatanta da ruwan tabarau na silicone ko epoxy, waɗanda zasu iya lalacewa ƙarƙashin dogon lokacin bayyanar UVC.

9. Tambayoyin da ake yawan yi (Bisa Ma'auni na Fasaha)

Q: Zan iya tuƙa wannan LED a 100mA don ƙarin fitarwa?

A: A'a. Ƙimar 100mA ita ce Matsakaicin Matsakaicin Matsakaici, ba yanayin aiki ba. Wuce gona da iri na yau da kullun 20mA halin yanzu na tuƙi zai ƙara ƙara zafin haɗin gwiwa, yana haifar da lalacewar fitarwa cikin sauri da yuwuwar gazawar na'urar. Koyaushe bi lankwasa ragewa.

Q: Me yasa ƙarfin lantarki gaba yake da girma kuma mai canzawa (5.0-7.5V)?

A> Babban makamashin bandgap da ake buƙata don fitar da photons na UVC yana haifar da ƙarfin lantarki gaba mafi girma. Bambancin yana cikin tsarin masana'antu na semiconductor, wanda shine dalilin da ya sa aka ba da tsarin rarraba. Ƙirar da'irar direbarka don ɗaukar cikakken kewayon ƙarfin lantarki na zaɓaɓɓen kwandonka.

Q: Ta yaya zan fassara "Mafi ƙarancin Ƙarfin Hasken Hasken" na 1mW?

A> Wannan shine ƙayyadadden ƙananan iyaka don takamaiman lambar oda. Ƙimar yau da kullun ita ce 2mW, kuma yawancin na'urori zasu yi kusa da wannan. Tsarin rarraba (Q0A/B/C) yana ba ku damar siyan sassa tare da mafi ƙarancin ƙayyadaddun ƙayyadaddun bayanai a cikin wannan kewayon gabaɗaya.

10: Nazarin Shari'ar Ƙira mai Amfani

Yanayi:Ƙirar ƙaramin sandar tsarkake saman mai ƙarfin USB.

Matakan Ƙira:

1. Kasafin Kuɗi:Tashar USB tana ba da 5V, ~500mA matsakaici. LED V_F(5-7.5V) ya fi tushen girma. Ana buƙatar mai canzawa mai haɓaka madaidaicin halin yanzu na direba.

2. Ƙirar Zafi:Gidan sandar ƙanƙane ne. Zaɓi PCB mai ƙarfin zafi mai ƙarfi (MCPCB). Siyar da pad na zafi na LED kai tsaye zuwa MCPCB. Tushen ƙarfe na MCPCB yana aiki azaman babban heatsink kuma wani ɓangare na jikin sandar.

3. Ƙirar Hoto:Yi amfani da mai nuna haske mai zurfi don jagorantar katakon 120° zuwa saman da aka yi niyya. Tabbatar cewa kayan mai nuna haske suna da kwanciyar hankali na UVC (misali, aluminum tare da murfin kariya).

4. Aminci:Ƙirar wani mai rufewa wanda kawai yake buɗewa lokacin da aka danna sandar a kan wani saman, yana toshe ɓarkewar UVC. Haɗa da'irar mai ƙidayar lokaci don iyakance tsawon lokacin bayyanawa kowane kunnawa.

5. Zaɓin Bangaren:Zaɓi LED daga kwandon Ƙarfin Lantarki Gaba guda ɗaya (misali, 5055) don sauƙaƙa ƙirar direba idan ana amfani da LED da yawa. Zaɓi daidai Kwandon Ƙarfin Hasken Hasken bisa ga kashi da lokacin jiyya da ake so.

11. Ka'idar Aiki

LED na UVC na'urori ne na semiconductor waɗanda ke fitar da photons a cikin bakan ultraviolet (musamman 200-280nm don UVC) ta hanyar electroluminescence. Lokacin da aka yi amfani da ƙarfin lantarki gaba a kan haɗin p-n, ana shigar da electrons da ramuka zuwa yanki mai aiki. Haɗuwarsu yana sakin makamashi a cikin nau'in photons. Tsawon raƙuman ruwa na waɗannan photons an ƙaddara shi ta hanyar makamashin bandgap na kayan semiconductor da aka yi amfani da su a cikin yanki mai aiki (yawanci aluminum gallium nitride - AlGaN). Ƙaramin bandgap yana haifar da tsayin raƙuman ruwa masu tsayi (mai gani/infrared), yayin da babban bandgap da ake buƙata don fitar da UVC ana samun shi tare da babban abun ciki na aluminum a cikin yadudduka na AlGaN.

12. Trends na Fasaha

Kasuwar LED ta UVC tana motsawa ne ta hanyar buƙatar mafita na kashe kwayoyin cuta marasa mercury, nan take, ƙanƙane, da ƙarfi. Manyan abubuwan da ke faruwa sun haɗa da:

Ƙara Ingantaccen Ingantaccen Bango (WPE):Bincike yana mai da hankali kan inganta ingantaccen ƙididdiga na ciki (IQE) da ingantaccen cire haske (LEE) don canza ƙarin shigarwar lantarki zuwa fitarwar hasken UVC, rage amfani da wutar lantarki da samar da zafi.

Mafi Girman Ƙarfin Fitarwa:Ci gaban fakitin multi-chip da ingantattun hanyoyin epitaxial yana ƙara ƙarfin haske kowace na'ura a hankali, yana ba da damar maganin manyan adadi ko rage lokacin bayyanawa.

Tsawon Rayuwa:Haɓaka kayan marufi (kamar yumbu da quartz da aka yi amfani da su a nan), dabarun haɗa gwaiduwa, da amincin semiconductor suna tsawaita tsawon rayuwar aiki (L70/B50) na LED na UVC, yana sa su zama masu dacewa don aikace-aikacen ci gaba da aiki.

Rage Farashi:Yayin da adadin masana'antu ke ƙaruwa kuma hanyoyin suka balaga, farashin kowace milliwatt na fitarwar UVC yana raguwa, yana faɗaɗa kewayon aikace-aikacen da za a iya aiwatar da su fiye da kasuwanni na musamman.