Bayanin Ƙayyadadden UV LED PLCC-2 2.8x3.5x0.65mm - Ƙarfin Gaba 3.2V Aka Saba - Ƙarfi 0.7W - Tsawon Wavelength 365-375nm

1. Bayanin Samfurin

Wannan LED ultraviolet (UV) an tsara shi a cikin kunshe na PLCC-2 (Plastic Leaded Chip Carrier) na SMT, mai girman 2.8 mm × 3.5 mm × 0.65 mm. Yana fitar da haske a cikin bakan UVA mai tsawon wavelength tsakanin 365 nm da 375 nm, yana dacewa da amfani kamar cirewa ta UV, warkaswa ta UV na tawada da manne, da kuma kula da farce. Na'urar tana da kusurwar kallo mai faɗi 120°, wanda ke ba da haske iri ɗaya a kan yankin da ake nufi. Ya dace da tsarin haɗa SMT na yau da kullun kuma ana ba da shi a kan tef da reel (4,000 guda a kowane reel). Samfurin ya cika buƙatun RoHS kuma yana da matakin laushi na 3.

Na'urar tana ba da ingantaccen haske da tsawon rayuwa idan an yi amfani da ita a cikin iyakokin da aka ƙayyade. Ana samunta a cikin bins da yawa don ƙarfin gaba, hasken radiyo, da tsawon wavelength, yana ba masu ƙira damar zaɓar matakin aiki mafi kyau don aikinsu. Kunshe na PLCC-2 yana ba da kyakkyawan tarwatsa zafi da ƙarfin injina don haɗa ta atomatik.

1.1 Manyan Siffofi

• Kunshe na PLCC-2 na SMT
• Kusurwar kallo: 120°
• Ya dace da duk haɗa SMT da siyer mai sake narkewa
• Matakin laushi: Level 3
• Ya cika RoHS
• Ana samunsa a cikin tef da reel (4,000 pcs/reel)
• Kariya daga lantarki mai tsauri: 1000 V (HBM)

1.2 Aikace-aikacen da Aka Nufa

• Cirewa ta ultraviolet (surface, ruwa, iska)
• Warkaswa ta UV na manne da sutura
• Warkaswa ta UV na tawada (masana'antar bugu)
• Kula da farce (warkaswa na gel)
• Hasken UV na gaba ɗaya da maganin haske

2. Nazarin Ma'aunin Fasaha

2.1 Halayen Lantarki da na Gani (a Ts = 25°C, IF = 150 mA)

Ana tuka LED da ƙarfin gaba na yau da kullun 150 mA. Ƙarfin gaba (VF) an rarraba shi zuwa matakai guda huɗu: B11 (3.0–3.2 V), B12 (3.2–3.4 V), B13 (3.4–3.6 V), da B14 (3.6–3.8 V). Ƙarfin gaba na yau da kullun kusan 3.2 V ne na bin B12, wanda shine zaɓi na gama gari don aiki 150 mA. Ƙarfin baya (IR) an iyakance shi zuwa 10 µA a VR = 5 V, yana nuna kyakkyawan haɗin gwiwar gyara.

Jimlar hasken radiyo (Φe) an rarraba shi zuwa bins: 1B26 (90–112 mW), 1B27 (112–140 mW), 1B28 (140–180 mW), da 1B29 (180–224 mW). Tsawon wavelength (λp) an rarraba shi zuwa UA54 (365–370 nm) da UA55 (370–375 nm). Kusurwar kallo an ayyana ta 120° (rabin kusurwa ±60°). Juriya na zafin jiki daga haɗin gwiwa zuwa wurin siyer (RthJ-S) yana 45 °C/W na yau da kullun.

2.2 Matsakaicin Matsakaici

Kada a yi amfani da LED fiye da iyakokin mafi girman matsakaici don hana lalacewa: mafi girman wutar lantarki shine 0.7 W, mafi girman ƙarfin gaba shine 180 mA (yanayin nisha ba a ƙayyade ba amma na yau da kullun don gajerun bugun jini), ƙarfin baya shine 5 V, da juriyar ESD (HBM) 1000 V. Zangon zafin jiki na aiki –40 zuwa +85 °C, zangon ajiya –40 zuwa +100 °C, da mafi girman zafin haɗin gwiwa 95 °C. Yana da mahimmanci a kiyaye zafin haɗin gwiwa ƙasa da 95 °C don tabbatar da aminci; ya kamata a yi la'akari da ƙirar zafi a hankali.

3. Bayanin Tsarin Bin

Ana rarraba samfurin zuwa bins don ƙarfin gaba, hasken radiyo, da tsawon wavelength don bawa abokan ciniki damar zaɓar matakin aiki da ya dace. An buga lambobin bin a kan lakabin reel (misali B11 don VF 3.0–3.2 V, 1B26 don haske 90–112 mW, UA54 don wavelength 365–370 nm). Tsarin lakabi ya ƙunshi filayen Lambar Sashe, Lambar Ƙayyadaddun, Lambar Kuri'a, Lambar Bin, da ƙayyadaddun ƙimar VF, Φe, da WLP. Wannan yana tabbatar da gano hanya da sauƙaƙa sarrafa kaya.

4. Nazarin Jagororin Aiki

4.1 Ƙarfin Gaba vs. Ƙarfin Gaba na Yanzu (I-V Curve)

Jagorar I-V na yau da kullun yana nuna cewa a 150 mA, ƙarfin gaba yana cikin kewayon 3.2–3.6 V. Jagorar tana da halayen UV LED na GaN. Yayin da ƙarfin yanzu ya ƙaru, VF yana tashi ba tare da layi ba; a ƙananan ƙarfin yanzu (misali 30 mA), VF yana kusan 3.3 V. Jagorar tana da amfani don tsara masu iyakance ƙarfin gaba ko masu tuka ƙarfi na yau da kullun.

4.2 Ƙarfin Haske Mai Dangantaka vs. Ƙarfin Gaba na Yanzu

Ƙarfin hasken radiyo mai dangantaka yana ƙaruwa da ƙarfin gaba na yanzu har zuwa mafi girman ƙarfin da aka ƙayyade. A 150 mA, ƙarfin mai dangantaka kusan 100% ne (na al'ada). A ƙananan ƙarfin yanzu, inganci yana ɗan ƙaruwa saboda raguwar zafi. Wannan dangantakar layi tana taimakawa a aikace-aikacen rage haske.

4.3 Tasirin Zafin Jiki

Zafin siyer (Ts) yana shafar ƙarfin haske mai dangantaka. Yayin da Ts ya ƙaru daga 25°C zuwa 125°C, ƙarfin mai dangantaka ya ragu da kusan 40%. Dole ne a rama wannan raguwar zafi ta hanyar sarrafa zafi mai kyau. Mafi girman zafin siyer da aka yarda don aiki mai ci gaba yana iyakance ta hanyar iyakokin zafin haɗin gwiwa (95 °C). Jagorar rage (Ts vs. Ƙarfin Gaba na Yanzu) tana nuna cewa a yanayin zafi mafi girma, dole ne a rage ƙarfin tuka don kasancewa cikin iyakokin aminci.

4.4 Rarraba Bakan

Rarraba bakan yana nuna kololuwa kusan 365–375 nm tare da cikakken faɗi a rabin mafi girma (FWHM) na kusan 10–15 nm. Fitarwa galibi tana cikin kewayon UVA, wanda ke da tasiri don kunna farawa a cikin warkaswa da kuma aikace-aikacen kashe ƙwayoyin cuta. Lura cewa ba a samar da tsawon wavelength UV-C (ƙasa da 280 nm ba; wannan na'urar tana da aminci ga yawancin aikace-aikacen mabukaci idan an yi amfani da shingen da ya dace.

4.5 Tsarin Haske

Zane-zanen haske yana nuna rarraba irin na Lambertian tare da kusurwar rabin ƙarfi ±60° (jumla 120°). Ƙarfin yana da ɗan daidaito a cikin yankin tsakiya, yana mai da shi dacewa da haske mai cike da ruwa. Halin fitarwa daga gefe yana da amfani ga aikace-aikacen da ke buƙatar rufewar faɗi.

5. Bayanin Injina da Kunshe

5.1 Girman Kunshe

Girman jikin kunshe na PLCC-2 shine 2.80 mm × 3.50 mm tare da tsayi (kauri) na 0.65 mm. Duban ƙasa yana nuna lambobin tuntuɓar guda biyu: anode da cathode. Ana nuna polarity ta hanyar ƙura ko alama a kan kunshe. Tsarin siyer da aka ba da shawarar (sawun) yana da girman: 2.10 mm × 2.10 mm ga kowane lamba, tare da nisa 2.08 mm. Jimlar tsayin siyer da aka ba da shawarar shine 2.80 mm kuma faɗin 3.50 mm (daidai da kunshe). Duk haƙuri ±0.2 mm ne sai dai in an faɗi akasin haka.

5.2 Polarity da Gudanarwa

Na'urar tana da polarity; an yi alama a gefen cathode yawanci. Ya kamata a kula kada a yi amfani da ƙarfin baya, wanda zai iya haifar da ƙaura da lalacewa. Lokacin gudanarwa, yi amfani da tweezers a saman gefe, ka guji taɓa ruwan tabarau na silicone (saman) saboda yana da laushi kuma yana iya jawo ƙura ko lalacewa.

6. Jagororin Siyer da Haɗa

6.1 Tsarin Siyer mai sake narkewa

An tsara LED don siyer mara guba. Tsarin da aka ba da shawara yana da yankin preheat (150–200 °C) na daƙiƙa 60–120, ƙimar tashi mafi girma 3 °C/s, lokaci sama da 217 °C har zuwa daƙiƙa 60, mafi girman zafin jiki 260 °C na mafi girman daƙiƙa 10, da ƙimar sanyaya mafi girma 6 °C/s. Jimlar lokaci daga 25 °C zuwa kololuwa ya kamata ya kasance cikin mintuna 8. Kada a sake narkowa fiye da sau biyu, kuma idan tazara tsakanin tsarin siyer guda biyu ya wuce sa'o'i 24, LED na iya sha danshi ya lalace; ana ba da shawarar gasa kafin sake siyer na biyu.

6.2 Siyer da Hannu da Gyara

Idan siyer da hannu ya zama dole, yi amfani da ƙarfe mai siyer da aka saita ƙasa da 300 °C na fiye da daƙiƙa 3. An yarda da aiki ɗaya kawai na siyer da hannu. Ba a ba da shawarar gyara bayan sake narkewa ba; idan ba zai yiwu ba, yi amfani da ƙarfe mai siyer mai kai biyu kuma a tabbatar da cewa halayen LED ba su lalace ba.

6.3 Tsaro

• Kada a yi matsin injina akan LED yayin ko bayan siyer kai tsaye (musamman lokacin da kunshe yake da zafi).
• Ka guji ɗora LED a kan allon PCB mai lanƙwasa, kuma kada a tanƙwara allon bayan siyer.
• Kada a sanyaya na'urar da sauri bayan sake narkewa; bar ta ta sanyaya a hankali zuwa zafin ɗaki.

7. Bayanin Kunshewa da Oda

7.1 Tef da Reel

Ana ba da LED a cikin tef mai ɗagawa mai nisa 8.00 mm, nisa 4.00 mm, da tef ɗin rufe. Diamita na reel shine 178 mm ±1 mm, diamita na cibiya 60 mm ±1 mm, da nisa na tef 12 mm. Kowane reel yana ɗaukar 4,000 guda. Lakabin reel ya ƙunshi lambar sashi, lambar ƙayyadaddun, lambar kuri'a, lambobin bin (VF, Φe, WLP), adadi, da lambar kwanan wata.

7.2 Laushi na Danshi da Ajiya

Na'urar tana da matakin laushi na 3. Kafin buɗe jakar shingen danshi da aka rufe, yanayin ajiya ≤30 °C da ≤75% RH har zuwa shekara ɗaya. Bayan buɗewa, dole ne a yi amfani da LED cikin sa'o'i 24 idan an adana su a ≤30 °C da ≤60% RH. Idan katin nuna danshi ya nuna danshi mai yawa ko kuma lokacin ajiya ya wuce, ana buƙatar gasa a 60 ±5 °C na ≥24 hours kafin amfani.

8. Bayanan Amfani da Ƙayyadaddun Tsari

8.1 Sarrafa Zafi

Saboda inganci da tsawon rayuwar LED sun dogara sosai da zafin haɗin gwiwa, isasshen magudanar zafi yana da mahimmanci. Juriya na zafin jiki daga haɗin gwiwa zuwa wurin siyer shine 45 °C/W. Tare da wutar lantarki 0.7 W (misali VF=3.5 V × IF=200 mA, amma mafi girman ƙarfin yanzu 180 mA, na yau da kullun 150 mA yana ba da ~0.525 W), haɓakar zafin haɗin gwiwa sama da wurin siyer kusan 0.525 × 45 = 23.6 °C. Idan zafin muhalli 85 °C, zafin haɗin gwiwa zai kasance ~109 °C, wanda ya wuce iyakar 95 °C. Saboda haka, don yanayin zafi mafi girma, dole ne a rage ƙarfin gaba na yanzu ko kuma a yi amfani da magudanar zafi mafi girma.

8.2 Tsarin Da'ira

Koyaushe yi amfani da mai iyakance ƙarfin gaba na yanzu ko mai tuka ƙarfi na yau da kullun don hana wuce gona da iri saboda bambancin ƙarfin gaba. Kada a yi amfani da ƙarfin baya. Juriya na ESD shine 1000 V (HBM); yi amfani da kayan aikin kariya daga ESD yayin gudanarwa da haɗa. Kayan aikin kada ya ƙunshi mahadi na sulfur sama da 100 ppm, kuma abun cikin halogen (bromine da chlorine daban-daban ≤900 ppm, jimla ≤1500 ppm) don hana lalacewar LED.<≤900 ppm<≤1500 ppm

8.3 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan siyer, yi amfani da barasa isopropyl (IPA). Ka guji tsaftacewa ta ultrasonic saboda tana iya lalata haɗin waya. Ya kamata a gwada sauran abubuwan narkewa don dacewa da rufin silicone da kayan kunshe. Saman silicone yana da laushi kuma yana iya jawo ƙura; tsaftace a hankali idan ya cancanta.

9. Kwatanta Fasaha

Idan aka kwatanta da LED masu haske na yau da kullun, wannan UV LED yana da ƙarfin gaba mafi girma (3.0–3.8 V vs. ~2.0–3.0 V na haske) da ƙananan inganci (ƙarfin haske vs. hasken radiyo). Duk da haka, yana ba da bakan UVA mai kunkuntar wanda aka inganta don tsarin sinadarai na haske. Kunshe na PLCC-2 ana amfani da shi sosai kuma yana dacewa da kayan aikin pick-and-place da sake narkewa na yau da kullun. Samfurin yana gasa da sauran UV LED masu irin wannan ƙarfi; fa'idarsa tana cikin ƙaramin sawun, kusurwar kallo mai faɗi, da zaɓuɓɓukan bin da yawa don daidaita aiki.

10. Tambayoyin da Aka Yi Yawa

Tambaya 1: Yaya zan zaɓi bin ƙarfin gaba da ya dace?
Zaɓi bin wanda ya dace da ƙarfin fitarwa na mai tuka ka. Don mai tuka ƙarfi na yau da kullun 150 mA mai ƙarfin fitarwa 3.4 V, B12 (3.2–3.4 V) ko B13 (3.4–3.6 V) zai dace. Koyaushe ka yi la'akari da raguwar ƙarfin a mai tuka da kowane resistor a jere.

Tambaya 2: Menene tsawon rayuwar wannan LED?
Ba a bayar da tsawon rayuwa a sarari a cikin takardar bayanan ba, amma tare da sarrafa zafi mai kyau (zafin haɗin gwiwa ƙasa da 85 °C), UV LED na yau da kullun suna samun L70 na sa'o'i 10,000–20,000. Zafin haɗin gwiwa mafi girma zai rage tsawon rayuwa sosai.

Tambaya 3: Za a iya buga LED da ƙarfin yanzu mafi girma?
Mafi girman ƙarfin gaba na yanzu shine 180 mA. Idan ana buga da ƙananan sake zagayowar aiki (≤10%), ƙarfin bugun jini mafi girma na iya yiwuwa, amma kada a wuce iyakokin mafi girman matsakaici. Tuntuɓi masana'anta don jagora.<≤10%

Tambaya 4: Shin fitowar UV tana cutar da mutane?
Hasken UVA (365–375 nm) na iya haifar da tsufa na fata da lalacewar ido tare da bayyanar da tsawon lokaci. Ya kamata a yi amfani da shingen da ya dace ko kayan kariya na ido. LED ba shine tushen UV-C ba, amma har yanzu yana buƙatar tsaro.

11. Misalan Amfani na Aiki

Misali na 1 – Warkaswa UV na PCB:Tsarin warkar da tawada na soldermask yana amfani da jerin waɗannan LED. Tare da kusurwar kallo 120°, jeri ɗaya na LED zai iya haskaka bel mai faɗi 10 cm daidai. Jimlar hasken radiyo na 180 mW kowane LED (bin 1B28) yana ba da saurin warkaswa a nesa 5 mm.

Misali na 2 – Fitilar Farce:A cikin fitilar warkar da farce, an shirya LED da yawa a cikin madawwamiyar maɗaukaki. Kololuwar 365–370 nm ta dace da shayar da farawa a cikin gel polishes. Ƙananan girman yana ba da damar ƙirar fitila mai siriri.

Misali na 3 – Cirewa:Domin cirewa ta saman ƙananan abubuwa (misali marufin waya), LED ɗaya da aka tuka a 150 mA tana ba da isasshen ƙarfin UVA don kashe ƙwayoyin cuta a kan yanki 10 cm² bayan 'yan mintuna. Ana iya ƙara madubi don tattara hasken.

12. Ƙa'idar Aiki na UV LED

Wannan LED yana amfani da tsarin semiconductor na Gallium Nitride (GaN) wanda ke fitar da haske lokacin da electrons suka haɗu da ramuka a yankin aiki. Kunshe na PLCC-2 ya ƙunshi firam ɗin gubar tare da kofin madubi mai haɗe, haɗin guntu, haɗin waya, da rufin silicone wanda ba ya toshe UVA. Ruwan tabarau na silicone yana kare guntu kuma ya tsara fitowar haske. Tafin zafi a ƙasan kunshe yana ba da damar zafi ya gudana zuwa PCB. An tsara na'urar don aiki na yau da kullun; ƙarfin gaba yana ƙayyade ta hanyar bandgap na Layer aiki (≈3.4 eV don 365 nm).

13. Yanayin Kasuwa da Fasaha

UV LED suna ƙara maye gurbin fitilun mercury na gargajiya a warkaswa, cirewa, da aikace-aikacen likita saboda ƙaramin girmansu, kunna/kashe nan take, babu dumama, da kuma dacewa da muhalli (babu mercury). Yanayin yana zuwa ga mafi girman ƙarfin wutar lantarki (misali 1 W a kowane guntu) da gajerun tsayin wavelength (UV-C don cirewa). Duk da haka, UV LEDs na UVA kamar wannan shine babban aikin warkaswa saboda suna da inganci mafi girma kuma suna da tsawon rayuwa fiye da UV LEDs na UV-C. Ci gaban gaba ya haɗa da ingantaccen ingancin fitarwa (ta hanyar tsarin ƙasa mai zane ko ƙirar flip-chip) da haɗe-haɗen na'urorin gani (misali ruwan tabarau mai girman haske). Kunshe na PLCC-2 na wannan samfurin fasaha ce da ta girma wacce ke ba da damar samarwa mai ƙarancin farashi da yawa.