Takardar Bayanin Fasaha na SMD LED 19-223/R6BHC-A05/2T - LED Mai Yawan Launuka - Ja & Shudi - 2.0V/3.3V - 60mW/75mW

1. Bayanin Samfur 19-223 ƙaramin LED ne da aka ƙera don haɗaɗɗun tarukan lantarki masu yawa. Nau'in launuka daban-daban ne, ana samunsa a cikin haske mai haske ja (ta amfani da guntun R6 AlGaInP) da shudi (ta amfani da guntun BH InGaN), dukansu an haɗa su a cikin fakitin resin mai tsabta. Ƙaramin siffarsa yana ba da damar rage girman allon sosai, yana ƙara yawan tattarawa, kuma yana ba da damar ƙirar ƙananan kayan aiki masu sauƙi, wanda ya sa ya dace da ƙananan aikace-aikace.

1.1 Siffofi na Cibiyar da Kuma Bin Ka'idoji Siffofi masu mahimmanci sun haɗa da fakitin akan kaset 8mm a cikin reels masu diamita 7-inch don dacewa da kayan aikin sanyawa ta atomatik. Abun ya dace da duka hanyoyin gini na infrared da na tururi. Samfurin ne mara gubar kuma ya bi ka'idojin muhalli masu mahimmanci ciki har da RoHS, EU REACH, da ka'idojin marasa halogen (Br <900 ppm, Cl <900 ppm, Br+Cl < 1500 ppm).

1.2 Ayyukan Da Ake Nufi Wannan LED yana da amfani sosai kuma ana amfani dashi a cikin ayyukan haskakawa da nuni daban-daban. Manyan aikace-aikace sun haɗa da hasken baya na dashboards, maɓalli, da alamomi; nuni da hasken baya a cikin na'urorin sadarwa kamar wayoyi da na'urorin fax; hasken baya mai lebur na LCDs; da aikace-aikacen haske na gabaɗaya.

2. Ma'auni na Fasaha: Cikakken Bayani Mai Ma'ana 2.1 Matsakaicin Matsakaicin Matsakaici Waɗannan ƙididdiga suna ayyana iyakokin da za su iya haifar da lalacewa na dindindin ga na'urar. An ƙayyade su a yanayin zafin yanayi (Ta) na 25°C.

Reverse Voltage (VR): 5V ga duka nau'ikan guntun. Wucewa wannan zai iya haifar da rushewar haɗin gwiwa.

Forward Current (IF): R6 (Ja): 25 mA (Ci gaba), BH (Shudi): 20 mA (Ci gaba).

Peak Forward Current (IFP): A cikin zagayowar aiki na 1/10 da 1kHz. R6: 50 mA, BH: 40 mA. Wannan ƙimar don aikin bugun jini ne, ba DC mai ci gaba ba.

Power Dissipation (Pd): R6: 60 mW, BH: 75 mW. Wannan shine matsakaicin ikon da fakitin zai iya watsawa, wanda aka lissafta a matsayin IF * VF.

Electrostatic Discharge (ESD) Human Body Model (HBM): R6: 2000V, BH: 150V. Guntun shudi (BH) yana da mahimmanci sosai ga ESD kuma yana buƙatar matakan kulawa masu tsauri.

• Temperature Range: Aiki (Topr): -40°C zuwa +85°C. Ajiya (Tstg): -40°C zuwa +90°C.Soldering Temperature: Reflow: 260°C kololuwa na matsakaicin dakika 10. Gini da hannu: 350°C na matsakaicin dakika 3.
• 2.2 Halayen Lantarki da Hasken Gani Waɗannan sune ma'auni na ayyuka na yau da kullun da aka auna a Ta=25°C da IF=20mA, sai dai idan an faɗi. Suna ayyana fitowar haske da halayen lantarki.Luminous Intensity (Iv): R6: 72.0 - 180.0 mcd. BH: 36.0 - 72.0 mcd. Wannan ma'auni ne na hasken da ake gani. Faɗin yanki yana nuna buƙatar binning.
• Viewing Angle (2θ1/2): Digiri 130 (na yau da kullun). Wannan yana ayyana yadudduka na kusurwa inda ƙarfin ya kasance aƙalla rabin ƙimar kololuwa.Peak Wavelength (λp): R6: 632 nm (na yau da kullun), BH: 468 nm (na yau da kullun). Tsawon zango inda fitowar haske ta fi ƙarfi.
• Dominant Wavelength (λd): R6: 617.5 - 633.5 nm, BH: 464.5 - 476.5 nm. Wannan yana da alaƙa da launin hasken da ake gani.Spectrum Radiation Bandwidth (Δλ): R6: 20 nm (na yau da kullun), BH: 15 nm (na yau da kullun). Faɗin haske a rabin matsakaicin ƙarfi.
• Forward Voltage (VF): R6: 1.7V (Mafi ƙanƙanta), 2.0V (Typ), 2.4V (Matsakaici). BH: 2.7V (Mafi ƙanƙanta), 3.3V (Typ), 3.7V (Matsakaici). Faɗin ƙarfin lantarki a kan LED lokacin aiki a ƙayyadadden halin yanzu.Reverse Current (IR): An auna a VR=5V. R6: 10 μA (Matsakaici), BH: 50 μA (Matsakaici).
• Tolerances: Luminous Intensity: ±11%, Dominant Wavelength: ±1nm, Forward Voltage: ±0.1V.3. Bayanin Tsarin Binning Don tabbatar da daidaiton launi da haske a cikin samarwa, ana rarraba LED zuwa kwandon bin dangane da ma'aunin da aka auna.
• 3.1 Binning na R6 (Guntun Ja) Luminous Intensity Bins (IF=20mA): Bin Q: 72.0 - 112.0 mcd Bin R: 112.0 - 180.0 mcd Dominant Wavelength Bins (IF=20mA): Bin E4: 617.5 - 621.5 nm Bin E5: 621.5 - 625.5 nm Bin E6: 625.5 - 629.5 nm Bin E7: 629.5 - 633.5 nm3.2 Binning na BH (Guntun Shudi) Luminous Intensity Bins (IF=20mA): Bin N2: 36.0 - 45.0 mcd Bin P1: 45.0 - 57.0 mcd Bin P2: 57.0 - 72.0 mcd Dominant Wavelength Bins (IF=20mA): Bin A9: 464.5 - 467.5 nm Bin A10: 467.5 - 470.5 nm Bin A11: 470.5 - 473.5 nm Bin A12: 473.5 - 476.5 nm

4. Bincike na Lankwasa Ayyuka Takardar bayanin tana ba da lankwasan halaye na yau da kullun waɗanda ke da mahimmanci don fahimtar halayen na'urar a ƙarƙashin yanayin da ba na ka'ida ba.

4.1 Halayen R6 (Ja) Lankwasan yawanci suna nuna: Relative Luminous Intensity vs. Forward Current: Yana nuna yadda fitowar haske ke ƙaruwa tare da halin yanzu, yawanci a cikin alaƙar da ba ta layi ba wacce ke cika a manyan halayen yanzu. Relative Luminous Intensity vs. Ambient Temperature: Yana nuna tasirin kashe zafi, inda fitowar haske ke raguwa yayin da zafin haɗin gwiwa ya tashi. Forward Voltage vs. Forward Current: Yana kwatanta lankwasa halayen I-V na diode. Forward Voltage vs. Ambient Temperature: Yana nuna mummunan ƙimar zafi na ƙarfin lantarki na gaba. Peak Wavelength vs. Ambient Temperature: Yana nuna yadda launin da aka fitar (tsawon zango) ke canzawa tare da zafin jiki.

• 4.2 Halayen BH (Shudi) Lankwasan yawanci sun haɗa da: Spectrum Distribution: Tsarin ƙarfi dangi da tsawon zango, yana nuna kololuwar fitarwa a kusa da 468 nm. Forward Voltage vs. Forward Current: Lankwasa I-V na guntun shudi. Forward Current Derating Curve: Yana ƙayyade matsakaicin halin yanzu na gaba mai ci gaba a matsayin aikin zafin yanayi don ci gaba da kasancewa cikin iyakokin watsawar wutar lantarki. Radiation Diagram: Tsarin polar da ke nuna rarraba sararin samaniya na ƙarfin haske (tsarin kusurwar kallo). Relative Luminous Intensity vs. Ambient Temperature: Lankwasa aikin zafi. Relative Luminous Intensity vs. Forward Current: Lankwasa inganci.5. Bayanin Injiniya da Fakitin 5.1 Girman Tsarin Fakitin LED na'urar haɗawa ce ta saman. Takardar bayanin tana ba da cikakken zanen girma (sama, gefe, da ra'ayoyin ƙasa) tare da ma'auni masu mahimmanci. Ma'auni masu mahimmanci yawanci sun haɗa da tsayin gaba ɗaya, faɗi, da tsayi, da kuma wuraren da aka yi solder da girma. Duk abubuwan da za a iya jurewa suna ±0.1mm sai dai idan an faɗi. Ma'aunin ma'auni shine millimeters (mm).
• 5.2 Gano Polarity Ana yiwa cathode alama a kan na'urar, sau da yawa tare da tsaga, kore dot, ko fakitin launi daban-daban a ƙasan fakitin. Dole ne a kiyaye polarity daidai yayin haɗawa don hana lalacewa.6. Jagororin Gini da Haɗawa 6.1 Bayanin Yanayin Reflow Solder Ana ba da shawarar yanayin zafin reflow mara gubar: Pre-heating: 150~200°C na dakika 60~120. Time Above Liquidus (217°C): Dakika 60~150. Peak Temperature: 260°C matsakaici. Time at Peak: Dakika 10 matsakaici. Heating Rate: 6°C/daƙiƙa matsakaici. Time Above 255°C: Dakika 30 matsakaici. Cooling Rate: 3°C/daƙiƙa matsakaici. Kada a yi reflow solder fiye da sau biyu.
• 6.2 Ajiya da Kula da Kulawa Moisture Sensitivity: An haɗa abubuwan a cikin jakar da ba ta shiga ruwa tare da desiccant. Kada a buɗe jakar hana danshi har sai an shirya amfani. Bayan buɗewa, LED da ba a yi amfani da su ba yakamata a adana su a ≤30°C da ≤60% RH. "Rayuwar bene" bayan buɗe jakar shine sa'o'i 168 (kwanaki 7). Idan ya wuce rayuwar bene ko kuma idan desiccant ya nuna danshi, ana buƙatar gasa a 60 ±5°C na awanni 24 kafin amfani. ESD Protection: Musamman ga guntun BH (Shudi) tare da ƙananan ƙimar HBM na 150V, ingantattun sarrafawa na ESD (tashoshin aiki na ƙasa, abubuwan wuyan hannu) suna tilas.7. Bayanin Fakitin da Oda 7.1 Ƙayyadaddun Reel da Kaset Ana ba da LED akan kaset ɗin mai ɗaukar hoto: Carrier Tape Width: 8 mm. Reel Diameter: Inci 7. Quantity per Reel: Guda 2000. An ba da cikakkun zane don girman reel, girman aljihun kaset ɗin mai ɗaukar hoto, da wurin murfin kaset, tare da abubuwan da za a iya jurewa na ±0.1mm sai dai idan an lura.
• 7.2 Bayanin Label Label ɗin fakitin ya haɗa da lambobi da yawa: CPN: Lambar Samfurin Abokin Ciniki. P/N: Lambar Samfur (misali, 19-223/R6BHC-A05/2T). QTY: Yawan Fakitin. CAT: Matsayi na Ƙarfin Hasken Gani (Lambar bin). HUE: Haɗin gwiwar Haɗin kai & Matsayi na Tsawon Zango (Lambar bin). REF: Matsayi na Ƙarfin Lantarki na Gaba. LOT No: Lambar Rukunin Samarwa don bin diddigin.8. Shawarwari na Aikace-aikace da Abubuwan Ɗauka a Zaman Ɗaki 8.1 Iyakancewar Halin Yanzu Mahimmanci: Dole ne a yi amfani da resistor mai iyakance halin yanzu na waje ko direban halin yanzu na yau da kullun a jere tare da LED. Ƙarfin lantarki na gaba yana da mummunan ƙimar zafi kuma ƙaramin canji zai iya haifar da babban ƙaruwa, mai yuwuwar lalacewa, a cikin halin yanzu na gaba. Za a iya ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (Vsupply - VF) / IF.
• 8.2 Gudanar da Zafi Duk da cewa watsawar wutar lantarki tana da ƙasa, shimfidar PCB daidai zai iya taimakawa sarrafa zafi. Tabbatar da isasshen yanki na tagulla a kusa da wuraren da aka yi solder don zama mai sanyaya zafi, musamman idan ana aiki kusa da matsakaicin ƙididdiga ko a cikin manyan yanayin zafi. Duba lankwasa rage ƙimar don guntun BH.8.3 Ɗaukar Hasken Gani Kusurwar kallo na digiri 130 yana ba da katako mai faɗi. Don aikace-aikacen da ke buƙatar haske mai mai da hankali, ana iya buƙatar na'urorin gani na biyu (ruwan tabarau). Resin mai tsabta ya dace da aikace-aikacen inda launin LED da kansa shine mai nuna alama. Don fitarwa mai watsewa ko tace launi, yakamata a yi la'akari da masu watsewa na waje ko ruwan tabarau.
• 9. Kwatancen Fasaha da Bambanci Babban fa'idar wannan ɓangaren yana cikin haɗin ƙaramin ƙafar SMD tare da samun fasahohin semiconductor daban-daban guda biyu masu inganci (AlGaInP don ja da InGaN don shudi) a cikin salon fakitin ɗaya. Wannan yana sauƙaƙe sayayya da haɗawa don ƙira masu buƙatar launuka daban-daban. Idan aka kwatanta da manyan LED ta hanyar rami, yana ba da tanadin sarari mai mahimmanci da dacewa da cikakkun layukan haɗawa na SMT masu sauri, yana rage farashin samarwa.10. Tambayoyin da Ake Yawan Yi (Dangane da Ma'auni na Fasaha) 10.1 Shin Zan iya tuka wannan LED ba tare da resistor ba? An yi gargadi a fili game da wannan a cikin "Abubuwan Kula don Amfani." Halayen I-V na LED yana nufin yana aiki kamar gajeren kewayawa idan an haɗa shi kai tsaye zuwa tushen ƙarfin lantarki sama da ƙarfinsa na gaba, wanda ke haifar da wuce gona da iri nan da nan da gazawa.
• 10.2 Me yasa ƙimar ESD na LED shudi ta yi ƙasa sosai fiye da na ja? Kayan aiki da tsarin LED shudi na tushen InGaN suna da mahimmanci ga fitar da lantarki fiye da LED ja na tushen AlGaInP. Wannan wata halayar asali ce ta fasahar semiconductor. Yana buƙatar tsauraran hanyoyin sarrafa ESD ga bambancin shudi.10.3 Menene lambobin bin (misali, R, E5, P2, A10) ke nufi ga ƙirar ta? Idan aikace-aikacen ku yana buƙatar daidaiton launi ko haske mai tsauri (misali, a cikin tsararrun LED da yawa ko nuni), dole ne ku ƙayyade lambobin bin da ake buƙata lokacin yin oda. Haɗa kwandon bin zai iya haifar da bambance-bambance a bayyane a cikin launin launi da ƙarfi a cikin samfurin ku. Don ƙananan aikace-aikacen nuni, faɗaɗɗen bin na iya zama abin karɓa.

10.4 Ta yaya zan fassara "Kololuwa" da "Mafi Rinjaye" tsawon zango? Peak Wavelength (λp) shine tsawon zango na zahiri inda fitar da ƙarfin haske ya fi girma. Dominant Wavelength (λd) shine tsawon zango na haske mai launi ɗaya wanda zai bayyana yana da launi ɗaya ga idon ɗan adam. λd ya fi dacewa don ƙayyadaddun launi a cikin aikace-aikacen gani.11. Misalin Ƙira da Amfani na Aiki Scenario: Ƙirar allon nuni mai matsayi da yawa. Allon sarrafawa yana buƙatar keɓaɓɓun alamomin ja da shudi don matsayin "Jiran Aiki," "Aiki," da "Kuskure." Yin amfani da jerin 19-223 yana ba mai ƙira damar yin amfani da ƙafafu iri ɗaya ga duka launuka biyu, yana sauƙaƙe shimfidar PCB. Mai ƙira ya zaɓi guntayen R6 (an bin su zuwa E5 don daidaiton launin ja) don "Kuskure" da guntayen BH (an bin su zuwa A10 don daidaiton shudi) don "Aiki." An ƙididdige ƙimar resistor mai iyakance halin yanzu gama gari don wadata 5V: ~150Ω don Ja (IF=20mA, VF=2.0V) da ~85Ω don Shudi (IF=20mA, VF=3.3V). Faɗin kusurwar kallo na digiri 130 yana tabbatar da ganin daga kusurwoyi daban-daban. Fakitin SMD yana ba da damar allon ya zama siriri sosai.

12. Gabatarwar Ka'ida Fitowar haske a cikin LED yana dogara ne akan electroluminescence a cikin haɗin gwiwar p-n na semiconductor. Lokacin da aka yi amfani da ƙarfin lantarki na gaba, ana shigar da electrons da ramuka cikin yankin aiki inda suke sake haɗuwa, suna sakin makamashi a cikin nau'in photons (haske). Launi (tsawon zango) na hasken da aka fitar an ƙaddara shi ta hanyar ƙarfin bandgap na kayan semiconductor. Guntun R6 yana amfani da tsarin AlGaInP (Aluminum Gallium Indium Phosphide), wanda ke da inganci don samar da haske ja zuwa amber. Guntun BH yana amfani da tsarin InGaN (Indium Gallium Nitride), wanda ake amfani dashi don samar da haske shudi, kore, da fari (tare da phosphor). Tsarin kayan daban-daban suna lissafin halayensu na lantarki daban-daban (ƙarfin lantarki na gaba, hankalin ESD) da aikin gani.

13. Trends na Ci Gaba Gabaɗayan yanayin fasahar LED, gami da abubuwan kamar 19-223, yana zuwa ga ingantaccen inganci (ƙarin lumens kowace watt), ƙaruwar ƙarfin wutar lantarki a cikin ƙananan fakitoci, da ingantaccen bayyana launi da daidaito. Hakanan ana mai da hankali sosai kan haɓaka aminci da tsawon rai a ƙarƙashin matsanancin yanayi daban-daban. Tuƙin ƙananan ƙira a cikin kayan lantarki na masu amfani yana ci gaba da tura ƙafafun SMD LED masu ƙanƙanta yayin kiyayewa ko inganta fitowar gani. Bugu da ƙari, haɗawa da sarrafawa mai hankali da haɓaka LED don tsayin zango na musamman (misali, don noma ko ji) sune wuraren ci gaba masu aiki. Bin ka'idojin muhalli (RoHS, Halogen-Free) yanzu shine buƙatun tushe don samun damar shiga kasuwar duniya.

.1 R6 (Red Chip) Binning

Luminous Intensity Bins (IF=20mA):

• Bin Q: 72.0 - 112.0 mcd
• Bin R: 112.0 - 180.0 mcd

Dominant Wavelength Bins (IF=20mA):

• Bin E4: 617.5 - 621.5 nm
• Bin E5: 621.5 - 625.5 nm
• Bin E6: 625.5 - 629.5 nm
• Bin E7: 629.5 - 633.5 nm

.2 BH (Blue Chip) Binning

Luminous Intensity Bins (IF=20mA):

• Bin N2: 36.0 - 45.0 mcd
• Bin P1: 45.0 - 57.0 mcd
• Bin P2: 57.0 - 72.0 mcd

Dominant Wavelength Bins (IF=20mA):

• Bin A9: 464.5 - 467.5 nm
• Bin A10: 467.5 - 470.5 nm
• Bin A11: 470.5 - 473.5 nm
• Bin A12: 473.5 - 476.5 nm

. Performance Curve Analysis

The datasheet provides typical characteristic curves which are essential for understanding device behavior under non-standard conditions.

.1 R6 (Red) Characteristics

Curves typically show:

• Relative Luminous Intensity vs. Forward Current:Shows how light output increases with current, usually in a non-linear relationship that saturates at higher currents.
• Relative Luminous Intensity vs. Ambient Temperature:Demonstrates the thermal quenching effect, where light output decreases as junction temperature rises.
• Forward Voltage vs. Forward Current:Illustrates the diode's I-V characteristic curve.
• Forward Voltage vs. Ambient Temperature:Shows the negative temperature coefficient of the forward voltage.
• Peak Wavelength vs. Ambient Temperature:Indicates how the emitted color (wavelength) shifts with temperature.

.2 BH (Blue) Characteristics

Curves typically include:

• Spectrum Distribution:A plot of relative intensity versus wavelength, showing the emission peak around 468 nm.
• Forward Voltage vs. Forward Current:The I-V curve for the blue chip.
• Forward Current Derating Curve:Specifies the maximum allowable continuous forward current as a function of ambient temperature to stay within power dissipation limits.
• Radiation Diagram:A polar plot showing the spatial distribution of light intensity (viewing angle pattern).
• Relative Luminous Intensity vs. Ambient Temperature:Thermal performance curve.
• Relative Luminous Intensity vs. Forward Current:Efficiency curve.

. Mechanical and Package Information

.1 Package Outline Dimensions

The LED is a surface-mount device. The datasheet provides a detailed dimensional drawing (top, side, and bottom views) with critical measurements. Key dimensions typically include the overall length, width, and height, as well as the solder pad locations and dimensions. All tolerances are ±0.1mm unless otherwise specified. The unit of measurement is millimeters (mm).

.2 Polarity Identification

The cathode is typically marked on the device, often with a notch, a green dot, or a different-colored pad on the bottom of the package. Correct polarity must be observed during assembly to prevent damage.

. Soldering and Assembly Guidelines

.1 Reflow Soldering Profile

A Pb-free reflow temperature profile is recommended:

• Pre-heating:~200°C for 60~120 seconds.
• Time Above Liquidus (217°C):~150 seconds.
• Peak Temperature:°C maximum.
• Time at Peak: seconds maximum.
• Heating Rate:°C/second maximum.
• Time Above 255°C: seconds maximum.
• Cooling Rate:°C/second maximum.

Reflow soldering should not be performed more than two times.

.2 Storage and Handling Precautions

Moisture Sensitivity:The components are packaged in a moisture-resistant bag with desiccant.

1. Do not open the moisture-proof bag until ready for use.
2. After opening, unused LEDs should be stored at ≤30°C and ≤60% RH.
3. The "floor life" after bag opening is 168 hours (7 days).
4. If exceeding floor life or if desiccant indicates moisture, baking at 60 ±5°C for 24 hours is required before use.

ESD Protection:Especially for the BH (Blue) chip with a low 150V HBM rating, proper ESD controls (grounded workstations, wrist straps) are mandatory.

. Packaging and Ordering Information

.1 Reel and Tape Specifications

The LEDs are supplied on embossed carrier tape:

• Carrier Tape Width: mm.
• Reel Diameter: inches.
• Quantity per Reel: pieces.

Detailed drawings for reel dimensions, carrier tape pocket dimensions, and cover tape placement are provided, with tolerances of ±0.1mm unless noted.

.2 Label Explanation

The packaging label includes several codes:

• CPN:Customer's Product Number.
• P/N:Product Number (e.g., 19-223/R6BHC-A05/2T).
• QTY:Packing Quantity.
• CAT:Luminous Intensity Rank (Bin code).
• HUE:Chromaticity Coordinates & Dominant Wavelength Rank (Bin code).
• REF:Forward Voltage Rank.
• LOT No:Manufacturing Lot Number for traceability.

. Application Suggestions and Design Considerations

.1 Current Limiting

Critical:An external current-limiting resistor or constant-current drivermustbe used in series with the LED. The forward voltage has a negative temperature coefficient and a small change can cause a large, potentially destructive, increase in forward current. The resistor value can be calculated using Ohm's Law: R = (Vsupply - VF) / IF.

.2 Thermal Management

While the power dissipation is low, proper PCB layout can help manage heat. Ensure adequate copper area around the solder pads to act as a heat sink, especially if operating near maximum ratings or in high ambient temperatures. Refer to the derating curve for the BH chip.

.3 Optical Design

The 130-degree viewing angle provides a wide beam. For applications requiring focused light, secondary optics (lenses) may be needed. The water-clear resin is suitable for applications where the LED color itself is the indicator. For diffused or color-filtered output, external diffusers or lenses should be considered.

. Technical Comparison and Differentiation

The primary advantage of this component lies in its combination of a small SMD footprint with the availability of two distinct, high-performance semiconductor technologies (AlGaInP for red and InGaN for blue) in one package style. This simplifies procurement and assembly for designs requiring multiple colors. Compared to larger through-hole LEDs, it offers significant space savings and compatibility with fully automated, high-speed SMT assembly lines, reducing manufacturing costs.

. Frequently Asked Questions (Based on Technical Parameters)

.1 Can I drive this LED without a resistor?

No.This is explicitly warned against in the "Precautions For Use." The LED's exponential I-V characteristic means it acts like a short circuit if connected directly to a voltage source above its forward voltage, leading to immediate overcurrent and failure.

.2 Why is the ESD rating for the blue LED so much lower than for the red?

The materials and structure of InGaN-based blue LEDs are inherently more sensitive to electrostatic discharge than AlGaInP-based red LEDs. This is a fundamental characteristic of the semiconductor technology. It necessitates stricter ESD handling procedures for the blue variant.

.3 What do the bin codes (e.g., R, E5, P2, A10) mean for my design?

If your application requires tight color or brightness consistency (e.g., in a multi-LED array or display), you must specify the required bin codes when ordering. Mixing bins can lead to visible variations in color hue and intensity across your product. For less critical indicator applications, a wider bin spread may be acceptable.

.4 How do I interpret the "Peak" vs. "Dominant" wavelength?

Peak Wavelength (λp)is the physical wavelength where the spectral power output is highest.Dominant Wavelength (λd)is the wavelength of monochromatic light that would appear to have the same color to the human eye. λd is more relevant for color specification in visual applications.

. Practical Design and Usage Case

Scenario: Designing a multi-status indicator panel.A control panel requires separate red and blue indicators for "Standby," "Active," and "Fault" states. Using the 19-223 series allows the designer to use identical footprints for both colors, simplifying PCB layout. The designer selects R6 chips (binned to E5 for consistent red hue) for "Fault" and BH chips (binned to A10 for consistent blue) for "Active." A common current-limiting resistor value is calculated for a 5V supply: ~150Ω for Red (IF=20mA, VF=2.0V) and ~85Ω for Blue (IF=20mA, VF=3.3V). The wide 130° viewing angle ensures visibility from various angles. The SMD package allows the panel to be very thin.

. Principle Introduction

Light emission in LEDs is based on electroluminescence in a semiconductor p-n junction. When a forward voltage is applied, electrons and holes are injected into the active region where they recombine, releasing energy in the form of photons (light). The color (wavelength) of the emitted light is determined by the bandgap energy of the semiconductor material. TheR6chip uses anAlGaInP(Aluminum Gallium Indium Phosphide) structure, which is efficient for producing red to amber light. TheBHchip uses anInGaN(Indium Gallium Nitride) structure, which is used for producing blue, green, and white (with phosphor) light. The different material systems account for their differing electrical characteristics (forward voltage, ESD sensitivity) and optical performance.

. Development Trends

The general trend in LED technology, including components like the 19-223, is towards higher efficiency (more lumens per watt), increased power density in smaller packages, and improved color rendering and consistency. There is also a strong focus on enhancing reliability and longevity under various environmental stresses. The drive for miniaturization in consumer electronics continues to push for ever-smaller SMD LED footprints while maintaining or improving optical output. Furthermore, integration with smart controls and the development of LEDs for specialized wavelengths (e.g., for horticulture or sensing) are active areas of advancement. The compliance with environmental standards (RoHS, Halogen-Free) is now a baseline requirement for global market access.