LTST-S326KGJSKT LED Mai Launuka Biyu SMD - Duban Gefe - Kore/Rawa - 20mA - Takardar Fasaha ta Hausa

1. Bayanin Samfur Wannan takardar ta yi cikakken bayani game da ƙayyadaddun fasaha na LED mai launuka biyu, mai duban gefe (SMD). Kayan ya haɗa da guntuwar semiconductor AlInGaP guda biyu daban-daban a cikin kunshi ɗaya, yana ba da damar fitar da hasken kore da rawa. An tsara shi don hanyoyin haɗawa ta atomatik, yana da ruwa mai tsabta ruwa kuma ana samar da shi akan tef da reel don samarwa mai yawa. Babban aikace-aikacen shine a matsayin mai nuni ko hasken yanayi a cikin kayan lantarki inda sarari ya takura kuma ana buƙatar bayyanar gefe.

2. Zurfin Binciken Ma'auni na Fasaha

2.1 Matsakaicin Matsakaicin Matsayi Ba za a iya sarrafa na'urar fiye da waɗannan iyakokin ba don hana lalacewa na dindindin. Manyan ƙididdiga sun haɗa da matsakaicin halin yanzu na DC na 30 mA a kowace guntu, matsakaicin halin yanzu na 80 mA (ƙarƙashin yanayin bugun jini tare da aikin 1/10), da matsakaicin ƙarfin baya na 5 V. Matsakaicin watsawar wutar lantarki ga kowane guntu yana iyakance zuwa 72 mW. An ƙayyade kewayon zafin yanayi daga -30°C zuwa +85°C.

2.2 Halayen Lantarki & Na Gani An auna a daidai gwargwadon gwajin gwaji na 20 mA da zafin yanayi na 25°C, an ayyana manyan ma'auni na aiki. Don guntuwar kore, matsakaicin ƙarfin haske shine 35.0 mcd (millicandelas) tare da mafi ƙarancin 18.0 mcd. Guntuwar rawa tana da haske sosai a 75.0 mcd, tare da mafi ƙarancin 28.0 mcd. Dukansu guntu suna nuna kusurwar kallo mai faɗi (2θ1/2) na digiri 130, suna ba da hangen nesa mai faɗi. Matsakaicin ƙarfin lantarki na gaba (VF) na launuka biyu shine 2.0 V, tare da matsakaicin 2.4 V. Tsawon tsinkaya masu rinjaye sun kusan 571 nm don kore da 589 nm don rawa, suna ayyana launin da ake gani.

3. Bayanin Tsarin Binning Ana rarraba LED ɗin zuwa kwandon asusu bisa ƙarfin haske da tsawon tsinkaya mai rinjaye don tabbatar da daidaiton launi da haske a cikin samarwa.

3.1 Binning Ƙarfin Hasken LED kore yana samuwa a cikin kwandon ƙarfi M, N, P, da Q, wanda ya ƙunshi kewayon daga 18.0 mcd zuwa 112.0 mcd. LED rawa yana amfani da kwandon N, P, Q, da R, wanda ya ƙunshi 28.0 mcd zuwa 180.0 mcd. Ana amfani da jurewar ±15% a cikin kowane kwandon.

3.2 Binning Tsawon Tsinkaya Mai Rinjaye Don LED kore kawai, an ayyana kwandon tsawon tsinkaya mai rinjaye C, D, da E, waɗanda suka dace da kewayon tsawon tsinkaya na 567.5-570.5 nm, 570.5-573.5 nm, da 573.5-576.5 nm, bi da bi, tare da jurewar ±1 nm a kowane kwandon. Wannan sarrafa daidai yana ba da damar daidaita takamaiman maki launi a cikin aikace-aikace.

4. Binciken Lankwalin Aiki Yayin da aka ambaci takamaiman lankwalan zane a cikin takardar bayanai (misali, lankwalan halaye na al'ada akan shafi na 6), gabaɗaya suna kwatanta alaƙa tsakanin halin yanzu na gaba (IF) da ƙarfin haske (IV), ƙarfin lantarki na gaba (VF), da tasirin zafin yanayi akan fitar da haske. Waɗannan lankwalan suna da mahimmanci ga masu zane don fahimtar halayen LED a ƙarƙashin yanayin aiki mara daidaituwa, kamar tuƙi a halin yanzu ban da 20 mA ko a cikin yanayin zafi mai girma.

5. Bayanin Injiniya & Kunshin

5.1 Girman Kunshin da Tsarin Pin LED ɗin ya yi daidai da tsarin kunshin SMD na masana'antu. Aikin fil ɗin yana da mahimmanci don aikin daidai: Cathode 2 (C2) an haɗa shi da anode na guntuwar kore (an nuna tsarin anode na gama gari), kuma Cathode 1 (C1) an haɗa shi da anode na guntuwar rawa. Zanen duban gefe yana nufin babban fitar da haske yana daidai da jirgin da aka ɗora.

5.2 Tsarin Gindin Gyarawa da Ake Shawarar An ba da shawarar gindin gyarawa don tabbatar da gyarawa mai aminci da daidaitawar injiniya daidai yayin aikin reflow. Yin bin waɗannan girma yana taimakawa hana kabari kuma yana tabbatar da samuwar haɗin gyarawa mai kyau.

6. Jagorar Gyarawa & Haɗawa

6.1 Bayanin Yanayin Gyarar Reflow An ba da shawarar cikakken bayanin reflow na infrared (IR) don hanyoyin gyarawa marasa gubar (Pb-free). Manyan ma'auni sun haɗa da matakin preheat, haɓakar zafin jiki mai sarrafawa, matsakaicin zafin jiki bai wuce 260°C ba na dakika 10, da matakin sanyaya mai sarrafawa. Wannan bayanin yana da mahimmanci don hana girgizar zafi da lalata kunshin LED da haɗin waya na ciki.

6.2 Ajiya da Sarrafawa LED ɗin suna da damuwa da danshi. Idan an buɗe asalin jakar kariya daga danshi, ya kamata a yi amfani da abubuwan cikin mako ɗaya ko a adana su a cikin yanayi mai bushewa (≤30°C/60% RH). Don ajiya fiye da mako ɗaya, ana buƙatar gasa a kusan 60°C na sa'o'i 20 kafin gyarawa don cire danshin da aka sha da hana "popcorning" yayin reflow.

6.3 Tsaftacewa Idan tsaftacewa bayan gyarawa ya zama dole, kawai ya kamata a yi amfani da kaushi na barasa kamar isopropyl alcohol ko ethyl alcohol. Ya kamata a nutsar da LED a zafin jiki na al'ada na ƙasa da minti ɗaya. Sauran sinadarai da ba a bayyana ba na iya lalata ruwan tabarau na epoxy ko kunshin.

7. Bayanin Kunshin & Oda Ana samar da na'urar a cikin tef ɗin mai ɗaukar kaya na 8mm akan reels mai diamita 7-inch (178mm). Kowace reel tana ƙunshe da guda 3000. Ƙayyadaddun tef da reel sun yi daidai da ƙa'idodin ANSI/EIA 481, suna tabbatar da dacewa da kayan aikin zaɓi da wuri ta atomatik. Lambar sashi LTST-S326KGJSKT ta keɓance wannan nau'in launuka biyu, mai duban gefe tare da ruwa mai tsabta ruwa.

8. Shawarwarin Aikace-aikace

8.1 Yanayin Aikace-aikace na Al'ada Wannan LED yana da kyau ga aikace-aikacen da ke buƙatar nuni daga gefen PCB, kamar a cikin siririn kayan lantarki na mabukaci (wayoyi, kwamfutar hannu), masu nuni da aka ɗora a kan panel, hasken dashboard na mota, da mu'amalar sarrafa masana'antu. Ƙarfin launuka biyu yana ba da damar nuna jihohi daban-daban guda biyu (misali, wuta/kore, jiran aiki/rawa) daga wurin kayan aiki guda ɗaya.

8.2 Abubuwan Tunani na Zane Dole ne masu zane su haɗa da masu hana halin yanzu da suka dace a jere tare da kowane guntu LED. Ana ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (Vcc - VF) / IF, inda VF shine ƙarfin lantarki na gaba (yi amfani da matsakaicin 2.4V don gefen zane) kuma IF shine halin yanzu da ake so (≤30 mA DC). Ana buƙatar yin taka tsantsan game da Fitowar Wutar Lantarki (ESD) yayin sarrafawa; dole ne a kafa tashoshi na aiki da ma'aikata daidai.

9. Kwatancen Fasaha & Bambance-bambance Manyan bambance-bambancen wannan ɓangaren shine ƙarfinsa na launuka biyu a cikin kunshin duban gefe da amfani da fasahar AlInGaP. LED na AlInGaP gabaɗaya suna ba da ingantacciyar inganci da ingantaccen kwanciyar hankali na zafin jiki don launuka ja, lemu, da rawa idan aka kwatanta da tsofaffin fasahohi. Siffar fitarwa ta gefe tana ba da fa'ida ta musamman akan LED masu fitarwa sama lokacin da alkiblar kallo ta yi daidai da saman PCB.

10. Tambayoyin da Ake Yawan Yi (FAQs)

10.1 Shin Zan iya kunna launukan LED biyu lokaci guda? Ee, amma dole ne a kiyaye matsakaicin watsawar wutar lantarki da iyakokin zafi. Kunna guntu biyu a matsakaicin halin yanzu na DC na 30 mA lokaci guda zai kusanci iyakar wutar lantarki guda ɗaya, don haka sarrafa zafi ko rage ƙima na iya zama dole a cikin yanayin zafi mai girma.

10.2 Menene bambanci tsakanin tsawon tsinkaya mafi girma da tsawon tsinkaya mai rinjaye? Tsawon tsinkaya mafi girma (λP) shine tsawon tsinkaya a mafi girman matsayi a cikin lankwalan fitarwa na LED. Tsawon tsinkaya mai rinjaye (λd) an samo shi daga ma'auni na launi akan zanen chromaticity na CIE kuma yana wakiltar tsawon tsinkaya guda ɗaya na haske mai launi ɗaya wanda idon ɗan adam zai gane shi da launi ɗaya. Tsawon tsinkaya mai rinjaye ya fi dacewa don ƙayyadaddun launi.

10.3 Ta yaya zan fassara lambobin bin lokacin yin oda? Don bayyanar daidaito a cikin samfurin ku, ƙayyade kwandon ƙarfin haske da ake buƙata (misali, P) kuma, don kore, kwandon tsawon tsinkaya mai rinjaye (misali, D). Wannan yana tabbatar da cewa duk LED ɗin da ke cikin samarwar ku suna da haske da launi masu kama da juna.

11. Nazarin Aikin Zane na Aiki Yi la'akari da na'urar likita mai ɗaukar hoto mai ƙaramin bayani. Dole ne a iya ganin LED na yanayi ta ƙaramin taga gefe. Yin amfani da wannan LED mai launuka biyu mai duban gefe yana adana yankin PCB. Hasken kore yana nuna aiki na al'ada (20 mA tuƙi), kuma hasken rawa yana nuna gargaɗin batirin ƙasa (ana tuƙa shi a ƙaramin halin yanzu, misali, 15 mA, don bambanta haske). Zanen yana amfani da fil ɗin GPIO na microcontroller daban-daban da masu jurewa na jere don sarrafa kowane launi da kansu. Faɗin kusurwar kallo na digiri 130 yana tabbatar da ganuwa ko da kusurwar kallon mai amfani bai daidaita daidai ba.

12. Gabatarwar Ka'idar Fasaha Wannan LED yana amfani da kayan semiconductor Aluminum Indium Gallium Phosphide (AlInGaP) don fitar da haske. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan mahaɗin p-n, electrons da ramuka suna sake haɗuwa, suna sakin makamashi a cikin nau'in photons. Takamaiman makamashin bandgap na gami da AlInGaP yana ƙayyade tsawon tsinkaya (launi) na hasken da aka fitar—a wannan yanayin, kore da rawa. Ana samun tasirin duban gefe ta hanyar ɗora guntuwar LED a gefensa a cikin kunshin, tare da saman fitar da haske yana fuskantar bangon gefen ruwan tabarau na epoxy.

13. Trends na Fasaha Trend a cikin LED masu nuni yana ci gaba zuwa mafi inganci (ƙarin fitar da haske a kowace naúrar wutar lantarki), ingantaccen daidaiton launi ta hanyar matsananciyar binning, da ƙara haɗin kai (kamar LED masu launuka da yawa da adireshi a cikin ƙananan kunshin). Hakanan ana mayar da hankali kan haɓaka amincin a ƙarƙashin yanayin zafi mai girma, kamar waɗanda ake samu a cikin aikace-aikacen ƙarƙashin hular mota ko kusa da manyan masu sarrafa wutar lantarki. Yunkurin ƙananan ƙanana yana ci gaba, yana tura girman kunshin ƙanana yayin kiyayewa ko inganta aikin gani.

. Packaging & Ordering Information

The device is supplied in standard 8mm carrier tape on 7-inch (178mm) diameter reels. Each reel contains 3000 pieces. The tape and reel specifications comply with ANSI/EIA 481 standards, ensuring compatibility with automated pick-and-place equipment. The part number LTST-S326KGJSKT uniquely identifies this dual-color, side-looking variant with water-clear lens.

. Application Suggestions

.1 Typical Application Scenarios

This LED is ideal for space-constrained applications requiring status indication from the side of a PCB, such as in slim consumer electronics (phones, tablets), panel-mounted indicators, automotive dashboard lighting, and industrial control interfaces. The dual-color capability allows for displaying two different states (e.g., power on/green, standby/yellow) from a single component location.

.2 Design Considerations

Designers must include appropriate current-limiting resistors in series with each LED chip. The resistor value is calculated using Ohm's Law: R = (Vcc - VF) / IF, where VF is the forward voltage (use max. 2.4V for design margin) and IF is the desired drive current (≤30 mA DC). Electrostatic Discharge (ESD) precautions are mandatory during handling; workstations and personnel must be properly grounded.

. Technical Comparison & Differentiation

The key differentiators of this component are its dual-color capability in a side-looking package and the use of AlInGaP technology. AlInGaP LEDs generally offer higher efficiency and better temperature stability for red, orange, and yellow colors compared to older technologies. The side-emitting form factor provides a distinct advantage over top-emitting LEDs when the viewing direction is parallel to the PCB surface.

. Frequently Asked Questions (FAQs)

.1 Can I drive both LED colors simultaneously?

Yes, but the total power dissipation and thermal limits must be observed. Driving both chips at their maximum DC current of 30 mA simultaneously would approach the combined power limit, so thermal management or derating may be necessary in high ambient temperatures.

.2 What is the difference between peak wavelength and dominant wavelength?

Peak wavelength (λP) is the wavelength at the highest point in the LED's spectral output curve. Dominant wavelength (λd) is derived from the color coordinates on the CIE chromaticity diagram and represents the single wavelength of a pure monochromatic light that would be perceived as the same color by the human eye. Dominant wavelength is more relevant for color specification.

.3 How do I interpret the bin codes when ordering?

For consistent appearance in your product, specify the required luminous intensity bin (e.g., P) and, for green, the dominant wavelength bin (e.g., D). This ensures all LEDs in your production run have closely matched brightness and color.

. Practical Design Case Study

Consider a portable medical device with a low-profile enclosure. A status LED must be visible through a small side window. Using this dual-color side-looking LED saves PCB area. The green light indicates normal operation (20 mA drive), and the yellow light indicates a low-battery warning (driven at a lower current, e.g., 15 mA, to differentiate brightness). The design uses separate microcontroller GPIO pins and series resistors to control each color independently. The wide 130-degree viewing angle ensures visibility even if the user's viewing angle is not perfectly aligned.

. Technology Principle Introduction

This LED utilizes Aluminum Indium Gallium Phosphide (AlInGaP) semiconductor material for light emission. When a forward voltage is applied across the p-n junction, electrons and holes recombine, releasing energy in the form of photons. The specific bandgap energy of the AlInGaP alloy determines the wavelength (color) of the emitted light—in this case, green and yellow. The side-looking effect is achieved by mounting the LED chip on its side within the package, with the light-emitting surface facing the side wall of the encapsulating epoxy lens.

. Technology Trends

The trend in indicator LEDs continues toward higher efficiency (more light output per unit of electrical power), improved color consistency through tighter binning, and increased integration (such as multi-color and addressable LEDs in tiny packages). There is also a focus on enhancing reliability under higher temperature conditions, such as those found in automotive under-the-hood applications or near high-power processors. The drive for miniaturization persists, pushing package sizes smaller while maintaining or improving optical performance.