67-21ST SMD Mid-Power LED Datasheet - PLCC-2 Package - 3.3V Max Voltage - 60mA - White Light - Technical Documentation

1. Product Overview

The 67-21ST is a surface-mount mid-power LED in a PLCC-2 package. It is a white LED designed to provide a balance of performance, efficiency, and reliability for general lighting applications. Its compact form factor and standardized package make it suitable for automated assembly processes.

1.1 Core Advantages

Faida kuu za ufungashaji huu wa LED ni pamoja na:

• Ufanisi wa Juu wa Mwanga:Inaweza kutoa mwanga mzuri ukilinganisha na matumizi ya nguvu yake.
• Kielelezo cha juu cha uonyeshaji rangi:Inatoa viwango vya CRI kutoka chini ya 60 hadi 90, kuhakikisha uokoaji mzuri wa rangi. Mfano wa kawaida wa uzalishaji wa wingi ni safu ya CRI 80 (kiwango cha chini).
• Pembe pana ya mtazamo:The typical viewing angle is 120 degrees, providing broad and uniform illumination.
• Low Power Consumption:The standard operating current is 60mA, with high energy efficiency.
• Usawa wa Kifedha:产品无铅，符合欧盟RoHS和REACH法规，并满足无卤标准（Br<900ppm，Cl<900ppm，Br+Cl<1500ppm）。
• ANSI binning:Kufuata viwango vilivyosanifishwa vya upangaji rangi, kuhakikisha uthabiti wa rangi kati ya mfululizo tofauti wa uzalishaji.

1.2 Target Markets and Applications

LED hii ni suluhisho bora kwa matumizi mengi ya taa yanayohitaji chanzo cha mwanga cha kuaminika, cha ufanisi na cha kompakt. Sehemu kuu za matumizi ni pamoja na:

• Taa za matumizi ya jumla:Kuunganishwa kwenye taa za makazi, biashara na viwanda.
• Taa za mapambo na burudani:For accent lighting, signage, and stage lighting.
• Indicator lights and switch lights:Suitable for button backlighting, panels, and status indicator lights.
• General lighting:Inafaa kwa matumizi yoyote yanayohitaji chanzo cha mwanga mweupe chenye mwangaza unaotawanyika na pembe pana.

2. In-depth Technical Parameter Analysis

Sehemu hii inatoa ufafanuzi wa kina na wa kitu kinachozingatiwa wa vigezo muhimu vya utendaji wa LED, kulingana na ufafanuzi uliotolewa katika hati ya maelezo chini ya hali ya kawaida ya majaribio.

2.1 Photoelectric Characteristics

Viashiria kuu vya utendaji vimefupishwa hapa chini. Thamani zote zimebainishwa kwa mkondo wa mbele (forward current) wa 60mA._F) of 60mA.

• Luminous Flux:Minimum luminous flux varies with correlated color temperature, ranging from 23 lumens at 2400K to 28 lumens from 4000K to 6500K. Typical maximum can reach up to 34 lumens depending on binning. Tolerance is ±11%.
• Forward Voltage:_F):Voltage ya juu ya mbele ni 3.3V, anuwai ya kawaida ni kutoka 2.8V hadi 3.3V. Toleo ni ±0.3V. Kuchagua kiwango cha chini cha Vf husaidia kuongeza ufanisi wa mfumo._FBins huchangia kuongeza ufanisi wa mfumo.
• Fahirisi ya Utoaji Rangi:_a):CRI ya chini ya bidhaa ya kawaida ni 80, na toleo la ±2. Thamani ya R9 imebainishwa kuwa 0, ambayo ni ya kawaida kwa LED nyeupe ya kawaida, ikionyesha uwezo wake mdogo wa kurejesha nyekundu ya kina.
• Pembe ya Mtazamo:_/2):The typical value is 120 degrees, which is a wide viewing angle, suitable for applications requiring wide-angle light distribution.
• Reverse Current:_R):Maximum 50 µA at 5V reverse voltage, indicating the leakage characteristics of the diode.

2.2 Absolute Maximum Ratings and Electrical Characteristics

These ratings define the limits that may cause permanent damage. Operating conditions should always remain within these limits.

• Forward Current:_F):75 mA.
• Peak forward current:_FP):150 mA.
• Power consumption:_d):250 mW.
• Forward voltage code:Encoded as "33" in the model number, corresponding to a maximum Vf of 3.3V._FUpeo wa 3.3V.
• Msimbo wa mkondo wa mbele:Imekodishwa kwenye modeli kama "Z6", inayolingana na If ya 60mA._Fya 60mA.

2.3 Thermal Characteristics

Thermal management is crucial for the lifespan and performance stability of LEDs.

• Thermal Resistance:_{th J-S}):Thermal resistance from junction to solder point is 21 °C/W. This value is crucial for calculating junction temperature based on power dissipation and board temperature.
• Junction temperature:_j):The maximum allowable temperature is 125 °C. Exceeding this limit accelerates light degradation and may lead to catastrophic failure.
• Operating Temperature:_opr):-40 to +105 °C. This defines the ambient temperature range for reliable operation.
• Storage Temperature:_stg):-40 to +100 °C.

3. Maelezo ya Mfumo wa Kugawa

The product employs a comprehensive binning system to ensure consistency in luminous flux, forward voltage, and chromaticity.

3.1 Kugawa kwa Flux ya Mwanga

Luminous flux is binned using specific codes. For example:

• 2400K:The grades include 23L2, 25L2, 27L2.
• 2700K to 6500K:Grading includes 24L2, 26L2, 28L2, 30L2, 32L2.

All grades are measured at If=60mA with a tolerance of ±11%._F=60mA with a ±11% tolerance.

3.2 Forward Voltage Bin

Forward voltage is grouped under code "2833" and further binned with a step size of 0.1V:

• 28A: 2.8 - 2.9V
• 29A: 2.9 - 3.0V
• 30A: 3.0 - 3.1V
• 31A: 3.1 - 3.2V
• 32A: 3.2 - 3.3V

Tolerance is ±0.1V. Selecting a lower Vf bin can reduce driver losses._Fbin can reduce driver losses.

3.3 Chromaticity and Correlated Color Temperature Grading

LED hutumia uainishaji wa kiwango cha rangi cha ANSI unaofafanuliwa kulingana na mchoro wa rangi wa CIE 1931. Uainishaji huo hutoa kisanduku cha kuratibu kina kwa kila CCT na uainishaji ndani ya uainishaji. Hii inahakikisha mwanga mweupe unaotolewa uangukie ndani ya anuwai ya rangi iliyofafanuliwa. Anuwai ya CCT inayozalishwa kwa wingi ni kutoka 2400K hadi 6500K.

3.4 Color Rendering Index Grading

CRI inawakilishwa katika nambari ya mfano kwa msimbo wa herufi moja:

• M: CRI 60
• N: CRI 65
• L: CRI 70
• Q: CRI 75
• K: CRI 80
• P: CRI 85
• H: CRI 90

The standard mass-produced model is graded as "K". The tolerance is ±2.

4. Performance Curve Analysis and Design Considerations

Although specific performance curves are not provided in the abstract, key relationships can be inferred from the parameters.

4.1 Relationship Between Current and Luminous Flux/Voltage

All main characteristics are specified at 60mA. Operating at lower currents reduces light output and forward voltage, while increasing the current up to a maximum of 75mA increases both. The relationship is typically linear within this range, but luminous efficacy may decrease at higher currents due to increased thermal load.

4.2 Utengamano wa Joto

Utendaji wa LED unategemea joto. Kadiri joto la kiungo linavyoongezeka:

• Mwanga unaotolewa hupungua:Pato la mwanga kwa kawaida hupungua. Upinzani wa joto wa 21°C/W ni muhimu kukadiria Tj._j.
• Voltage ya mbele hupungua: V_FVf has a negative temperature coefficient.
• Chromaticity may shift:White point may shift slightly with temperature.

Kupoza kwa joto kufaa ni muhimu kwa kudumisha utendaji na maisha ya kifaa.

4.3 Usambazaji wa Wigo

Kama LED ya mwanga mweupe, inatumia chip ya bluu ya InGaN iliyochanganywa na safu ya fosforesheni kutoa mwanga mweupe. CCT inafafanua "joto" au "baridi" ya mwanga mweupe. CRI 80 inaonyesha uokoaji mzuri wa rangi katika anuwai nzima ya wigo unaoonekana, lakini kuna ukomo unaojulikana kuhusu thamani ya R9.

5. Muundo wa Mitambo, Ufungaji na Habari ya Usanikishaji

5.1 Packaging and Dimensions

The LED uses a standard PLCC-2 surface mount package. Although the provided text does not detail the exact dimensions, this type of package typically has a low profile and is designed for SMT assembly. The top view shows the light-emitting surface.

5.2 Soldering Guidelines

Kifaa hiki kina usikivu kwa kutokwa kwa umeme tuli, na hatua zinazofaa za kuzuia lazima zichukuliwe. Vigezo vya kuunganisha ni kama ifuatavyo:

• Kuunganisha kwa kujirudia (Reflow soldering):Peak temperature up to 260°C for 10 seconds.
• Hand soldering:Soldering iron tip temperature not exceeding 350°C for 3 seconds.

Kufuata kanuni hizi ni muhimu ili kuzuia uharibifu wa kifuniko cha plastiki na viunganisho vya ndani vya chip.

5.3 Kutambua Upeo wa Msimamo

Kifurushi cha PLCC-2 kina pini mbili. Kathodi kawaida hutambuliwa kupitia alama kwenye kifurushi, kama vile pengo, nukta ya kijani, au kona iliyokatwa. Ni muhimu kuzingatia ubaguzi sahihi wakati wa kukusanya.

6. Ordering Information and Model Decoding

The model number follows a specific structure:67-21ST/KKE-HXXXX33Z6/2T

• 67-21ST/: Basic encapsulation code.
• KKEInternal code.
• HPerformance code prefix.
• XXThe first two digits represent CCT.
• XXThe next two digits indicate the minimum luminous flux bin.
• 33Forward voltage code.
• Z6: Forward current code.
• /2T: Package code.

Mfano:67-21ST/KKE-H302633Z6/2T inafasiriwa kama: CRI 80, CCT 3000K, flux ya mwanga ya chini 26 lumens, Vf ya juu 3.3V, If 60mA._F.3V max, I_F 60mA.

. Application Suggestions & Design Notes

7. Application Suggestions and Design Considerations

7.1 Ubunifu wa Saketi ya Kuendesha

Kwa utendaji thabiti, tumia kichocheo cha mkondo wa kudumu kilichowekwa kwa 60mA. Kichocheo lazima kiweze kutoa voltage ya juu kuliko voltage ya juu ya mbele ya kiwango kilichochaguliwa. Fikiria ulinzi wa mkondo wa mshtuko.

7.2 Ubunifu wa Usimamizi wa Joto_jKokotoa halijoto inayotarajiwa ya kiungo: Tj = Ts + (Rth J-S * Pd), ambapo Ts ni halijoto ya sehemu ya kuuza, Pd = Vf * If. Hakikisha Tj iko chini sana ya 125°C, kwa nadharia chini ya 85°C kwa maisha bora zaidi. Tumia eneo la shaba la kutosha kwenye PCB kwa upotezaji wa joto._s+ (R_{th J-S}* P_d), where T_sis the soldering point temperature and P_d= V_F* I_F. Ensure T_jremains well below 125°C, ideally below 85°C for optimal lifetime. Use adequate copper area on the PCB for heat spreading.

7.3 Optical Design

The 120-degree viewing angle is inherently diffuse. Secondary optics are required for directional lighting. Transparent resin allows for good light extraction.

8. Ulinganisho wa Teknolojia na Mazingira ya Soko

67-21ST iko katika kundi maarufu la LED zenye nguvu ya kati, zinazoshindana na aina nyingine za PLCC-2 na zile zinazofanana. Tofauti yake iko katika mchanganyiko maalum wa mwanga unaotolewa, CRI, na vigezo vya voltage, pamoja na vyeti vyake vya kufuata kanuni. Ikilinganishwa na LED zenye nguvu kubwa, ina msongamano mdogo wa joto na kwa kawaida huendeshwa kwa umbo la safu ili kupata pato la jumla la mwanga lenye nguvu zaidi. Ikilinganishwa na LED zenye nguvu ndogo, inatoa ufanisi mkubwa zaidi wa mwanga na kiwango cha juu cha mwanga unaotolewa.

9. Maswali Yanayoulizwa Mara kwa Mara

Swali: Ni muda gani wa kawaida wa maisha ya LED hii?
Jibu: Ingawa hakuna maalum katika muhtasari, maisha ya LED hutegemea sana hali ya uendeshaji, hasa joto la kiungo. Wakati inafanya kazi ndani ya mipaka ya vipimo na usimamizi mzuri wa joto, maisha yanayotarajiwa ya kawaida ni masaa 25,000 hadi 50,000.

Swali: Je, naweza kuendesha LED hii kwa 75mA kwa mfululizo?
Jibu: Ndiyo, 75mA ndio kiwango cha juu kabisa cha mfululizo. Hata hivyo, kuendesha kwa mkondo wa juu zaidi kutazalisha joto zaidi, kupunguza ufanisi wa mwanga, na kufupisha uwezekano wa maisha. Inashauriwa kufanya kazi kwenye 60mA inayopendekezwa kwa utendaji bora na uaminifu.

Swali: Je, ni jinsi gani ya kuchagua CCT na CRI zinazofaa kwa programu yangu?
Jibu: Kwa taa za mazingira, kawaida hutumia aina za 2700K-4000K na CRI 80+. Kwa taa za rejareja au za kazi ambapo usahihi wa rangi ni muhimu, zingatia aina za CRI 90+. Kwa taa za mapambo, uchaguzi unategemea mazingira unayotaka.

Swali: Je, upinzani wa mfululizo mmoja unatosha kuendesha LED hii?
A: Kwa matumizi ya msingi, yasiyo ya muhimu yenye usambazaji thabiti wa voltage, unaweza kutumia upinzani wa mfululizo rahisi. Hata hivyo, inashauriwa kwa nguvu kutumia kichocheo cha mkondo wa mara kwa mara ili kupata pato la mwanga thabiti, ufanisi bora, na kuzuia mabadiliko ya voltage na ukosefu wa udhibiti wa joto.

10. Mifano ya Matumizi Halisi

Tukio: Kubuni taa ya mstari ya LED.

1. Mahitaji:1200流明输出，4000K中性白，CRI >80，输入电压24V DC。
2. Uchaguzi:Chagua modeli 67-21ST/KKE-H402833Z6/2T._F~3.1V typ).
3. Muundo wa safu:Ili kufikia lumens 1200, inahitajika takriban LED 43. Zipange kwenye usanidi wa mnyororo sambamba unaolingana na kichocheo cha 24V. Muundo wa kina unahitaji kuhesabiwa.
4. Thermal Design:Total power is approximately 8W. Ensure the metal core PCB or heat sink can dissipate heat to keep the LED junction temperature cool.
5. Optical Design:Kutumia kifuniko cha kusambaza mwanga, taa moja ya LED inabadilishwa kuwa mwanga sawasawa.

Mfano huu unaonyesha mchakato wa kupanua kutoka kwa maelezo ya taa moja ya LED hadi kwa bidhaa ya taa inayofanya kazi.

11. Kanuni ya Uendeshaji

LED ya 67-21ST inafanya kazi kulingana na kanuni ya umeme-luminisheni ya semikondukta. Wakati mkondo wa mbele unatumika kwenye kiunganishi chake cha p-n, chipu ya InGaN hutoa mwanga wa bluu. Mwanga huu wa bluu huamsha safu ya fosforasi ya manjano iliyopakwa juu ya chipu au inayozunguka. Mwanga wa bluu kutoka kwa chipu huchanganywa na mwanga wa manjano/nyekundu kutoka kwa fosforasi, na kutoa mwanga mweupe unaohisiwa. Uwiano halisi wa mwanga wa bluu na mwanga uliobadilishwa na fosforasi huamua joto la rangi linalohusiana la mwanga mweupe unaotolewa.

12. Mwelekeo wa Teknolojia na Mazingira

LED za nguvu ya kati kama 67-21ST zinawakilisha sehemu iliyokomaa na iliyoboreshwa sana katika teknolojia ya LED. Mwelekeo wa sasa katika uwanja huu unazingatia:

• Kuboresha ufanisi wa mwanga:Uboreshaji endelevu wa muundo wa chip na ufanisi wa fosforasi.
• CRI ya juu na R9 bora:Kukuza mfumo wa fosforasi unaoboresha uokoaji wa rangi nyekundu bila kupoteza kwa kiasi kikubwa ufanisi wa mwanga.
• Color Tuning:The growth of tunable white products, often using multiple LED chips in a single package.
• Miniaturization and Higher Density:Kufunga lumens zaidi katika nafasi ile ile au ndogo zaidi, ili kufikia muundo wa taa ulio rahisi zaidi.
• Kuongeza uaminifu na maisha ya huduma:Kuimarisha nyenzo na teknolojia ya ufungaji ili kustahimili joto la juu zaidi na mazingira magumu zaidi.

Bidhaa hii iko katika muundo huu unaoendelea kukua, ikitoa suluhisho la kuaminika na la kiwango cha juu kwa matumizi mapana ya taa za jumla.