Table of Contents
- 1. Product Overview
- 1.1 Core Advantages
- 1.2 Matumizi Lengwa
- 2. Viwango vya Juu Kabisa
- 3. Electro-Optical Characteristics
- 4. Mfumo wa Uainishaji Maelezo
- 4.1 Uainishaji wa Nguvu ya Mwanga (CAT)
- 4.2 Dominant Wavelength Binning (HUE)
- 4.3 Forward Voltage Binning (REF)
- 5. Performance Curve Analysis
- 5.1 Forward Current vs. Forward Voltage (I-V Curve)
- 5.2 Luminous Intensity vs. Forward Current
- 5.3 Luminous Intensity vs. Ambient Temperature
- 5.4 Forward Current Derating Curve
- 5.5 Spectral Distribution
- 5.6 Radiation Pattern
- 6. Mechanical and Packaging Information
- 6.1 Package Dimensions
- 6.2 Recommended Land Pattern
- 6.3 Polarity Marking
- 7. Mwongozo wa Uchomeaji na Usanikishaji
- 7.1 Reflow Soldering Temperature Profile (Lead-Free)
- 7.2 Manual Soldering
- 7.3 Rework and Repair
- 8. Storage and Moisture Sensitivity
- 9. Packaging and Ordering Information
- 9.1 Tape and Reel Specifications
- 9.2 Label Description
- 10. Application Design Considerations
- 10.1 Current Limiting Resistor Calculation
- 10.2 Usimamizi wa Joto
- 10.3 Kinga ya ESD
- 11. Ulinganishi wa Kiufundi na Tofauti
- 12. Maswali Yanayoulizwa Mara kwa Mara (FAQ)
- 13. Utafiti wa Kesi ya Ubunifu: Taa ya Nyuma ya Swichi ya Dashibodi
- 14. Technical Principles
- 15. Industry Trends
1. Product Overview
16-213 ni LED ya kifaa cha kushikilia uso (SMD) iliyoundwa kwa matumizi ya msongamano mkubwa na miniaturization. Inatumia teknolojia ya semiconductor ya AlGaInP kutoa mwanga mkali wa rangi nyekundu. Ukubwa wake mwembamba, ikilinganishwa na vipengele vya fremu ya waya ya jadi, huhifadhi nafasi kwa kiasi kikubwa kwenye bodi ya mzunguko wa kuchapishwa (PCB), ikisaidia katika kubuni bidhaa za mwisho ndogo na kupunguza mahitaji ya uhifadhi.
1.1 Core Advantages
- Miniaturization:The compact package size allows for higher packaging density and makes it possible to design more compact electronic devices.
- Lightweighting:Suitable for applications where weight is a critical factor.
- Compatibility:Inapakiwa kwenye mkanda wa 8mm na kuviringishwa kwenye reeli ya inchi 7, hivyo inalingana kabisa na vifaa vya kawaida vya usakinishaji wa kibao-kiotomatiki.
- Uzingatiaji wa mazingira:产品为无铅设计,符合 RoHS、欧盟 REACH 及无卤素标准 (Br <900ppm, Cl <900ppm, Br+Cl <1500ppm)。
- Ulinganifu wa mchakato:Inafaa kwa mchakato wa kuunganisha kwa mionzi ya infrared (IR) na kwa mkondo wa gesi.
1.2 Matumizi Lengwa
LED hii inafaa kabisa kwa aina mbalimbali za viashiria na kazi za taa ya nyuma, zikiwemo:
- Mwanga wa nyuma wa dashibodi na swichi katika vifaa vya udhibiti wa magari na viwanda.
- Viashiria vya hali na mwanga wa nyuma wa kibodi katika vifaa vya mawasiliano kama vile simu, mashine za faksi, n.k.
- Backlighting ya gorofa ya paneli ya LCD, swichi na alama.
- Utumizi wa taa za dalili za jumla.
2. Viwango vya Juu Kabisa
The following ratings define the limits beyond which permanent damage to the device may occur. Functional operation is not guaranteed under or outside these conditions.
| Parameters | Ishara | Ukubalwa | Kipimo |
|---|---|---|---|
| Reverse Voltage | VR | 5 | V |
| Continuous Forward Current | IF | 25 | mA |
| Peak Forward Current (Duty Cycle 1/10 @1kHz) | IFP | 60 | mA |
| Power consumption | Pd | 60 | mW |
| Electrostatic Discharge (Human Body Model) | ESD (HBM) | 2000 | V |
| Operating Temperature | TT_opr | -40 to +85 | °C |
| Joto la uhifadhi | TT_stg | -40 to +90 | °C |
| Welding temperature (reflow soldering) | TT_sol | Maximum 260°C, duration not exceeding 10 seconds. | - |
| Joto la Uchomaji (Uchomaji wa Mikono) | TT_sol | Kiasi cha juu cha 350°C, kwa muda usiozidi sekunde 3. | - |
3. Electro-Optical Characteristics
Vigezo hivi vinapimwa chini ya hali ya joto ya mazingira (T_a) ya 25°C na mkondo wa mbele (I_F) wa 20mA (isipokuwa ikitajwa vinginevyo). Vinawakilisha utendaji wa kawaida wa kifaa.aT_aFI_F
| Parameters | Ishara | Min. | Typ. | Max. | Kipimo | Masharti |
|---|---|---|---|---|---|---|
| Ukubana kwa Mwanga | Iv | 90.0 | - | 180 | I_V | IFmcd |
| I_F=20mAViewing Angle (2θ_1/2)) | 2θ_1/2deg | - | 120 | - | Peak Wavelength | - |
| λ_p | λp | - | 632 | - | nm | - |
| Dominant Wavelength | λd | 617.5 | - | 633.5 | λ_d | - |
| nm | Spectral bandwidth (FWHM) | - | 20 | - | Δλ | - |
| nm | VF | 1.75 | - | 2.35 | V | IFForward Voltage |
| V_F | IR | - | - | 10 | I_F=20mA | VRReverse current |
I_R
- μA
- V_R=5V
- Remarks:
Luminous intensity tolerance: ±11%
Dominant wavelength tolerance: ±1nm
Forward Voltage Tolerance: ±0.05V
4. Mfumo wa Uainishaji MaelezoFTo ensure consistency in application performance, LEDs are classified (binned) according to key parameters. 16-213 employs a three-code binning system.
| 4.1 Uainishaji wa Nguvu ya Mwanga (CAT) | This code indicates the minimum and maximum luminous intensity at I_F=20mA. | Binning Code |
|---|---|---|
| Thamani ya chini (mcd) | 90.0 | 112 |
| Thamani ya juu (mcd) | 112 | 140 |
| Q2 | 140 | 180 |
R1
R2
| 4.2 Dominant Wavelength Binning (HUE) | This code defines the color purity range of the emitted red light. | Binning Code |
|---|---|---|
| Minimum Value (nm) | 617.5 | 621.5 |
| Maximum (nm) | 621.5 | 625.5 |
| E4 | 625.5 | 629.5 |
| E5 | 629.5 | 633.5 |
E6
E7F4.3 Forward Voltage Binning (REF)
| This code groups LEDs based on their forward voltage drop at I_F=20mA, which is crucial for current-limiting resistor calculation and power supply design. | Group | Binning Code | Thamani ya chini (V) |
|---|---|---|---|
| B | 0 | 1.75 | 1.95 |
| B | 1 | 1.95 | 2.15 |
| B | 2 | 2.15 | 2.35 |
Maximum (V)
5. Performance Curve AnalysisaThe following typical curves reveal the device behavior under different conditions. Unless noted, all curves are measured at T_a=25°C.
5.1 Forward Current vs. Forward Voltage (I-V Curve)
This curve illustrates the exponential relationship between applied voltage and resulting current. At the standard operating current of 20mA, the forward voltage (V_F) typically ranges from 1.75V to 2.35V. Designers must use a series current-limiting resistor to prevent thermal runaway, as a slight increase in voltage beyond the knee point leads to a large and potentially destructive increase in current.FV_F
5.2 Luminous Intensity vs. Forward Current
Mwangaza wa mwanga huongezeka takriban kwa mstari na ongezeko la sasa ya mbele, hadi kufikia sasa ya kiwango cha juu zaidi. Kufanya kazi zaidi ya kiwango cha juu kabisa (25mA sasa endelevu) kutaongeza kiwango cha kuchakaa na kupunguza uaminifu.
5.3 Luminous Intensity vs. Ambient Temperature
Mwanga wa LED hupungua kadri halijoto ya kiungo kinavyoongezeka. Mkunjo huu unaonyesha ukubwa wa mwanga wa jamaa unavyopungua halijoto ya mazingira inavyopanda kutoka -40°C hadi +85°C. Uteuzi huu wa kupunguza lazima uzingatiwe katika miundo ambapo LED inafanya kazi katika mazingira ya joto la juu au inaendeshwa kwa mkondo wa juu.
5.4 Forward Current Derating Curve
Mkunjo huu muhimu hufafanua mkondo wa juu unaoruhusiwa wa mwelekeo sahihi unaoendelea kama utendakazi wa halijoto ya mazingira. Ili kuhakikisha utendakazi thabiti na kuzuia joto kupita kiasi, mkondo wa mwelekeo sahihi lazima upunguzwe wakati wa kufanya kazi katika halijoto ya juu ya mazingira.
5.5 Spectral Distribution
Wigo unazingatia urefu wa wimbi la kilele cha kawaida (λ_p) cha 632nm, na upana wa nusu ya kilele (FWHM) wa takriban 20nm, ambayo ni sifa ya LED nyekundu ya AlGaInP. Urefu wa wimbi kuu (λ_d) unafafanua rangi inayohisiwa.pλ_dd5.6 Radiation Pattern
This LED features a wide viewing angle of 120 degrees (2θ_1/2), providing a broad and uniform emission pattern, suitable for area lighting and indicator applications requiring a wide field of view.
6. Mechanical and Packaging Information6.1 Package DimensionsThe datasheet provides the physical outline and key dimensions of the LED package. Unless otherwise specified, the tolerance is typically ±0.1mm. Designers should refer to the exact drawing for creating the footprint.
6.2 Recommended Land Pattern
It includes the recommended pad pattern (footprint) for PCB design. This pattern is for reference only and should be optimized based on specific manufacturing processes, solder paste volume, and thermal management requirements.
6.3 Polarity Marking
Katode kawaida huwa na alama kwenye kifaa. Mwelekeo sahihi wa polarity wakati wa usanikishaji ni muhimu ili kuzuia uharibifu unaosababishwa na voltage ya kinyume.
7. Mwongozo wa Uchomeaji na Usanikishaji
7.1 Reflow Soldering Temperature Profile (Lead-Free)
LED hii inaendana na mchakato wa kawaida wa reflow wa infrared au vapor. Mkunjo wa joto unaopendekezwa unajumuisha:
Upashaji joto kabla:
150-200°C, kwa sekunde 60-120.
Time Above Liquidus (TAL):
- 60-150 seconds above 217°C.Peak Temperature:
- Kiwango cha juu cha 260°C, muda wa kudumisha usizidi sekunde 10.Kiwango cha kupanda kwa joto:
- Hadi 255°C kiwango cha juu cha 3°C/sekunde, kisha hadi kilele cha juu cha 6°C/sekunde.Cooling rate:
- Maximum 6°C/s.Key points:
- No more than two reflow soldering processes should be performed on the same device.7.2 Manual Soldering
Ikiwa ni lazima kufanya upakiaji kwa mkono, tahadhari kubwa inahitajika:Tumia chuma cha kupakia chenye kichwa kisicho na joto la zaidi ya 350°C.
Kikomo cha muda wa mguso kwa kila ncha ya upakiaji ni sekunde 3 kwa upeo.
Tumia chuma cha kulehemu chenye nguvu ya kiwango cha W 25 au chini.
- Kati ya kuunganisha kila mwisho, weka angalau sekunde 2 za kupumzika kwa ajili ya kupoa.
- Epuka kutumia mkazo wa mitambo kwenye mwili wa LED wakati wa joto.
- 7.3 Rework and Repair
- Hairushusiwi kabisa kufanya ukarabati baada ya kuunganisha LED. Ikiwa haliwezi kuepukika, lazima utumie chuma maalum ya kuchomelea yenye vichwa viwili ili kuwasha ncha zote mbili za kuunganisha kwa wakati mmoja, ili kupunguza mkazo wa joto. Baada ya ukarabati, lazima uthibitishe athari kwenye sifa za LED.
- 8. Storage and Moisture Sensitivity
LED imefungwa kwenye mfuko wa kuzuia unyevunyevu ulio na kikaushi.
Kabla ya kufungua:
Hifadhi chini ya hali ya ≤30°C na ≤90% unyevunyevu jamaa (RH).
After Opening (Floor Life):
- Unused devices must be soldered within 1 year when stored at ≤30°C and ≤60% RH. If not used within this period, they must be rebaked and repacked.Baking Procedure:
- If the desiccant indicator changes color or exceeds the shop floor life, it must be baked at 60 ±5°C for 24 hours before use.9. Packaging and Ordering Information
- 9.1 Tape and Reel SpecificationsDevices are supplied in 8mm wide embossed carrier tape, wound on 7-inch diameter reels. Each reel contains 3000 units.
9.2 Label Description
Lebo ya reel inajumuisha misimbo muhimu kadhaa:
CPN:
Customer Part Number.
P/N:
- Manufacturer Part Number (e.g., 16-213/R6C-AQ2R2B/3T).QTY:
- Quantity per reel.CAT:
- Ngazi ya nguvu ya mwanga (mfano, Q2, R1, R2).HUE:
- Ngazi ya urefu wa wimbi kuu (mfano, E4, E5, E6, E7).REF:
- Forward voltage level (e.g., 0, 1, 2).LOT No:
- Traceable production batch number.10. Application Design Considerations
- 10.1 Current Limiting Resistor CalculationLazima utumie upinzani wa mfululizo kuweka mkondo wa mbele. Thamani ya upinzani (R_S) inaweza kuhesabiwa kwa kutumia sheria ya Ohm: R_S = (V_Supply - V_F) / I_F. Kwa muundo ulio na uangalifu, tumia thamani ya juu zaidi ya V_F kutoka kwenye jedwali la viwango, ili kuhakikisha I_F haizidi thamani inayotarajiwa. Pia lazima uhesabu nguvu ya kiwango cha upinzani: P_R = (I_F)² * R_S.
V_Supply
V_F
I_FV_FI_FSI_FSR_S10.2 Usimamizi wa JotoDespite its compact package, the power dissipation (up to 60mW) can lead to a significant junction temperature rise, especially in high ambient temperatures or enclosed spaces. This reduces light output and lifetime. If operating near maximum ratings, ensure sufficient PCB copper area or thermal vias are used for heat dissipation.F10.3 Kinga ya ESDFAlthough rated for 2000V HBM, standard ESD precautions should always be followed during assembly and handling to prevent potential damage.F11. Ulinganishi wa Kiufundi na TofautiFLED ya 16-213 yenayotumia teknolojia ya AlGaInP ina faida dhahiri katika matumizi ya taa nyekundu za kiashiria:RIkilinganishwa na teknolojia za zamani (mfano, GaAsP):FAlGaInP hutoa ufanisi bora wa kutolea mwanga, uzalishaji wa mwanga mkali zaidi kwa mkondo sawa, na usafi bora wa rangi (nyekundu iliyojaa zaidi).S.
Ikilinganishwa na LED nyeupe yenye wigo pana na kichujio:
Kwa kuzalisha mwanga mwekundu safi, LED ya mwanga mwekundu wa monokromia ni bora zaidi kuliko kuchuja mwanga mweupe, na hivyo hutumia nguvu kidogo.
Ikilinganishwa na LED kubwa za aina ya kufuatishwa na waya:
Umbo la SMD linawezesha usanikishaji wa kiotomatiki, linaokoa nafasi kwenye bodi ya mzunguko, na linaimarisha uaminifu wa kiufundi kwa kuondoa waya zinazoweza kupindika na kuvunjika.
12. Maswali Yanayoulizwa Mara kwa Mara (FAQ)
Q1: What is the difference between Peak Wavelength (λp) and Dominant Wavelength (λd)?
- A1: Peak wavelength ndio urefu wa wimbi ambapo usambazaji wa nguvu ya wigo unafikia thamani ya juu zaidi. Wavelength kuu ni urefu wa wimbi la mwanga wa monochromatic unaolingana na rangi inayohisiwa ya LED. Katika matumizi ya viashiria, λd inahusiana zaidi na vipimo vya rangi.Q2: Ikiwa chanzo changu cha umeme kina usahihi wa 2.0V, naweza kuendesha LED hii bila kupinga ya kudhibiti mkondo?
- A2: Voltage ya mbele ina uvumilivu na hubadilika kulingana na joto. Voltage ya usambazaji sawa na V_F ya kawaida inaweza kusababisha mkondo mwingi kutokana na tofauti kati ya vifaa au kupungua kwa joto. Ili kuhakikisha utendakazi unaotegemewa, daima unahitaji kupinga mfululizo.V_F
- Q3: Kwa nini anuwai ya joto la uhifadhi ni pana kuliko anuwai ya joto la uendeshaji?A3: Ukadiriaji wa uhifadhi unatumika wakati kifaa kiko katika hali isiyo ya kufanya kazi, isiyo na umeme. Anuwai ya uendeshaji ni nyembamba zaidi kwa sababu hali ya uendeshaji hutoa joto katika kiungo cha semiconductor, na athari za jumla za joto la mazingira na joto la kujizalisha lazima zizuiliwe ili kuhakikisha utendakazi na maisha ya huduma.
Q4: Je, nambari ya sehemu 16-213/R6C-AQ2R2B/3T inasomwaje?
A4: Although the exact decoding rules may be proprietary, it typically contains a base product code (16-213), followed by codes specifying performance bins (e.g., luminous intensity 'R2', dominant wavelength likely in the 'E6/E7' range, forward voltage 'B2'), and possibly the package type ('3T' may refer to tape and reel).
13. Utafiti wa Kesi ya Ubunifu: Taa ya Nyuma ya Swichi ya Dashibodi
Scenario:
Design backlighting for automotive dashboard switches, requiring uniform and reliable red illumination in environments with ambient temperatures up to 70°C.No.Design Steps:FUchaguzi wa Sasa:
Ili kuhakikisha maisha marefu katika hali ya joto la juu, inahitajika kupunguza kiwango cha sasa. Kulingana na mkunjo wa kupunguza kiwango, katika joto la mazingira la 70°C, I_F inayoruhusiwa ya juu ni chini sana kuliko 25mA. Kuchagua I_F = 15mA hutoa ukingo mzuri wa usalama.
I_F
I_F
Uhesabuji wa Upinzani:
Tumia chanzo cha umeme cha gari cha 12V na kiwango cha juu cha V_F (2.35V) cha kiwango cha B2. R_S = (12V - 2.35V) / 0.015A ≈ 643Ω. Tumia upinzani wa kawaida wa 620Ω au 680Ω. Nguvu: P = (0.015)² * 643 ≈ 0.145W. Upinzani wa 1/4W unatosha.
V_FR_S
Uchaguzi wa kiwango:
- Ili kuhakikisha muonekano unaolingana kati ya swichi nyingi, bainisha madaraja madhubuti ya HUE (wavelength kuu, mfano E6 pekee) na CAT (nguvu ya mwanga, mfano R1 pekee). Hii inahakikisha uthabiti wa rangi na mwangaza.Mpangilio:FWeka LED na kipingamizi chake cha kikomo karibu. Tumia mpangilio wa pedi ulipendekezwa kwenye spec sheet, unaweza kuongeza viunganisho vidogo vya kupoeza ili kusaidia ufungaji.F14. Technical Principles
- LED hii inategemea muundo wa heterojunction ya semikondukta ya alumini-gallium-indium-phosphide (AlGaInP). Wakati voltage chanya inatumika kwenye p-n junction, elektroni na mashimo huingizwa kwenye eneo lenye shughuli na hufanyika recombination pale. Nishati iliyotolewa wakati wa recombination hutolewa kwa namna ya fotoni (mwanga). Nishati maalum ya band gap ya aloi ya AlGaInP huamua wavelength ya mwanga unaotolewa, katika mfano huu ni wigo nyekundu (takriban 632nm). Lensi ya epoksi wazi huruhusu mwanga kutoka kwa kunyonya kidogo, na umbo lake huamua pembe ya kuona ya upana wa digrii 120.15. Industry TrendsFSoko la LED za kiashiria za SMD kama 16-213 linaendelea kukua. Mienendo mikubwa inajumuisha:SUboreshaji wa ufanisi:
- Maboresho ya kuendelea katika sayansi ya nyenzo yanalenga kutoa ufanisi mkubwa wa mwanga (kutoa mwanga zaidi kwa kila kitengo cha umeme), na hivyo kusababisha matumizi ya nguvu ya chini au viashiria vyenye mwanga mkubwa.Miniaturization:
- Mahitaji ya bidhaa za mwisho ndogo zaidi yanasisitiza kupunguzwa kwa ukubwa wa ufungaji wa LED (mfano, vipimo vya metriki 0402, 0201), huku ukidumisha au kuboresha utendaji wa macho.Uimarishaji wa Uaminifu:
Uboreshaji wa nyenzo za ufungaji na teknolojia ya kusakinisha chip unalenga kupanua maisha ya kazi, na kuimarisha uthabiti dhidi ya mzunguko wa joto na unyevu.
Ujumuishaji:
Mwelekeo wa kuunganisha LED nyingi (k.m., kikundi cha RGB) au kuchanganya LED na IC ya udhibiti (kama vile chip ya kuendesha) kwenye kifurushi kimoja, ili kurahisisha muundo wa saketi na kuokoa nafasi kwenye bodi ya saketi.
The market for SMD indicator LEDs like the 16-213 continues to evolve. Key trends include:
- Ufanisi Ulioongezeka:Uboreshaji endelevu wa sayansi ya nyenzo unalenga kutoa ufanisi mkubwa wa mwanga (utoaji zaidi wa mwanga kwa kila kitengo cha umeme), na kuruhusu matumizi madogo ya nguvu au viashiria vyenye mwanga mkubwa.
- Udogo:Dhamira ya bidhaa za mwisho ndogo zaidi inasukuma vifurushi vidogo zaidi vya LED (k.m., saizi za metri 0402, 0201) huku ukidumisha au kuboresha utendaji wa mwanga.
- Uthabiti Ulioimarishwa:Maboresho katika nyenzo za ufungaji na teknolojia za kuunganisha die yanalenga kupanua maisha ya uendeshaji na uthabiti dhidi ya mzunguko wa joto na unyevu.
- Ujumuishaji:Mwelekeo wa kuunganisha taa nyingi za LED (k.m., vikundi vya RGB) au kuchanganya LED na viini vya udhibiti (kama vile chips za kiendeshi) katika vifurushi vya pekee ili kurahisisha muundo wa sakiti na kuokoa nafasi kwenye bodi.
Maelezo ya Istilahi za Vipimo vya LED
Kamusi Kamili ya Istilahi za Teknolojia ya LED
I. Viashiria Muhimu vya Utendaji wa Kielektroniki na Mwanga
| Istilahi | Unit/Penulisan | Penjelasan Populer | Kwa nini ni muhimu |
|---|---|---|---|
| Ufanisi wa Mwanga (Luminous Efficacy) | lm/W (lumens per watt) | The luminous flux emitted per watt of electrical power; the higher the value, the more energy-efficient. | Directly determines the energy efficiency rating and electricity cost of the luminaire. |
| Fluxi Mwanga (Luminous Flux) | lm (lumen) | Jumla ya kiasi cha mwanga kinachotolewa na chanzo cha mwanga, kinachojulikana kwa kawaida kama "mwangaza". | Huamua kama taa inatosha kuwa na mwangaza. |
| Pembe ya kuona (Viewing Angle) | ° (degree), such as 120° | The angle at which light intensity drops to half, determining the beam width. | Affects the illumination range and uniformity. |
| Joto la rangi (CCT) | K (Kelvin), k.m. 2700K/6500K | Joto la rangi ya mwanga, thamani ya chini huelekea manjano/joto, thamani ya juu huelekea nyeupe/baridi. | Huamua mazingira ya taa na matumizi yanayofaa. |
| Kielelezo cha Uonyeshaji Rangi (CRI / Ra) | Unitless, 0–100 | The ability of a light source to reproduce the true colors of objects, with Ra≥80 being preferable. | Inaathiri usahihi wa rangi, hutumiwa katika maeneo yenye mahitaji makubwa kama vile maduka makubwa, makumbusho ya sanaa. |
| Tofauti ya uwezo wa rangi (SDCM) | Idadi ya hatua za duaradufu ya MacAdam, kama vile "5-step" | A quantitative metric for color consistency; a smaller step number indicates better color consistency. | Ensures no color variation among luminaires from the same batch. |
| Wavelengthu Kuu (Dominant Wavelength) | nm (nanomita), k.m. 620nm (nyekundu) | Thamani ya wavelength inayolingana na rangi ya LED ya rangi. | Determines the hue of monochromatic LEDs such as red, yellow, and green. |
| Spectral Distribution | Wavelength vs. Intensity Curve | Shows the intensity distribution of light emitted by an LED across various wavelengths. | Affects color rendering and color quality. |
Vigezo vya Umeme
| Istilahi | Ishara | Penjelasan Populer | Mambo ya Kuzingatia katika Ubunifu |
|---|---|---|---|
| Voltage ya Mbele (Forward Voltage) | Vf | Voltage ya chini inayohitajika kuwasha LED, kama "kizingiti cha kuanzisha". | Voltage ya chanzo cha umeme inahitaji kuwa ≥ Vf, voltage inajumlishwa wakati LED nyingi zimeunganishwa mfululizo. |
| Forward Current | If | The current value that makes the LED emit light normally. | Constant current drive is often used, as the current determines brightness and lifespan. |
| Mkondo wa juu wa msukumo (Pulse Current) | Ifp | Peak current that can be withstood for a short period, used for dimming or flashing. | Pulse width and duty cycle must be strictly controlled to prevent overheating damage. |
| Reverse Voltage | Vr | The maximum reverse voltage that an LED can withstand; exceeding it may cause breakdown. | Mzunguko unahitaji kuzuia uunganishaji kinyume au mshtuko wa voltage. |
| Thermal Resistance | Rth(°C/W) | Upinzani wa joto kutoka kwenye chip hadi kwenye sehemu ya kuunganishia, thamani ya chini inaonyesha usambazaji bora wa joto. | Upinzani wa juu wa joto unahitaji muundo wa nguvu zaidi wa usambazaji wa joto, vinginevyo joto la kiungo litaongezeka. |
| Uvumilivu wa Kutokwa na Umeme wa Tuli (ESD Immunity) | V (HBM), k.m. 1000V | Uwezo wa kukabiliana na mshtuko wa umeme wa tuli, thamani ya juu zaidi inamaanisha uwezekano mdogo wa kuharibika na umeme wa tuli. | Hatua za kinga dhidi ya umeme wa tuli zinahitajika katika uzalishaji, hasa kwa LED zenye unyeti wa juu. |
III. Usimamizi wa Joto na Uthabiti
| Istilahi | Viashiria Muhimu | Penjelasan Populer | Athari |
|---|---|---|---|
| Junction Temperature | Tj (°C) | Joto halisi la uendeshaji ndani ya chip ya LED. | Kila kupungua kwa joto kwa 10°C, maisha ya taa yanaweza kuongezeka mara mbili; joto la juu sana linasababisha kupungua kwa mwanga na mabadiliko ya rangi. |
| Kupungua kwa Mwanga (Lumen Depreciation) | L70 / L80 (saa) | Muda unaohitajika ili mwangaza upunguke hadi 70% au 80% ya thamani ya awali. | Inafafanua moja kwa moja "maisha ya huduma" ya LED. |
| Lumen Maintenance | % (e.g., 70%) | The percentage of remaining brightness after a period of use. | Inaonyesha uwezo wa kudumisha mwangaza baada ya matumizi ya muda mrefu. |
| Color Shift | Δu′v′ or MacAdam ellipse | The degree of color change during use. | Affects the color consistency of the lighting scene. |
| Uzeefu wa joto (Thermal Aging) | Kupungua kwa utendaji wa nyenzo | Deterioration of packaging materials due to prolonged high temperatures. | May lead to decreased brightness, color shift, or open-circuit failure. |
IV. Packaging and Materials
| Istilahi | Aina za Kawaida | Penjelasan Populer | Sifa na Matumizi |
|---|---|---|---|
| Package Type | EMC, PPA, Ceramic | The housing material that protects the chip and provides optical and thermal interfaces. | EMC offers good heat resistance and low cost; ceramics provide superior heat dissipation and long lifespan. |
| Chip structure | Front-side mounting, flip-chip (Flip Chip) | Chip electrode arrangement method. | Flip-chip offers better heat dissipation and higher luminous efficacy, suitable for high-power applications. |
| Phosphor coating | YAG, silicate, nitride | Inayofunikwa kwenye chip ya mwanga wa bluu, sehemu hubadilishwa kuwa mwanga wa manjano/nyekundu, na kuchanganywa kuwa mwanga mweupe. | Fosfori tofauti huathiri ufanisi wa mwanga, halijoto ya rangi na ubora wa kuonyesha rangi. |
| Lenzi/Usanifu wa Optics | Planar, Microlens, Total Internal Reflection | Optical structures on the encapsulation surface to control light distribution. | Determine the beam angle and light distribution curve. |
V. Quality Control and Binning
| Istilahi | Binning Content | Penjelasan Populer | Purpose |
|---|---|---|---|
| Luminous Flux Binning | Codes such as 2G, 2H | Group by brightness level, each group has a minimum/maximum lumen value. | Ensure consistent brightness for products within the same batch. |
| Mgawanyiko wa voltage | Msimbo kama vile 6W, 6X | Group by forward voltage range. | Facilitates driver matching and improves system efficiency. |
| Color binning. | 5-step MacAdam Ellipse | Group by color coordinates to ensure colors fall within a minimal range. | Hakikisha usawa wa rangi, epuka kutofautiana kwa rangi ndani ya taa moja. |
| Mgawanyiko wa joto la rangi | 2700K, 3000K, n.k. | Pang'anganya kulingana na joto la rangi, kila kikundi kina safu maalum ya kuratibu. | Kukidhi mahitaji ya joto la rangi kwa matukio tofauti. |
VI. Uchunguzi na Uthibitisho
| Istilahi | Kigezo/Uchunguzi | Penjelasan Populer | Maana |
|---|---|---|---|
| LM-80 | Mtihani wa Kudumisha Lumen | Kurekebisha chini ya hali ya joto la kudumu kwa muda mrefu, rekodi data ya kupungua kwa mwangaza. | Kutumia kukadiria maisha ya LED (kwa kuchanganya TM-21). |
| TM-21 | Standard for Life Projection | Projecting lifetime under actual use conditions based on LM-80 data. | Toa utabiri wa kisayansi wa maisha. |
| IESNA Standard | Illuminating Engineering Society Standard | Inajumu mbinu za kupima mwanga, umeme na joto. | Msingi unaokubalika kitaalamu wa upimaji. |
| RoHS / REACH | Environmental Certification | Ensure products are free from hazardous substances (e.g., lead, mercury). | Masharti ya kuingia katika soko la kimataifa. |
| ENERGY STAR / DLC | Uthibitishaji wa Ufanisi wa Nishati | Uthibitishaji wa Ufanisi wa Nishati na Utendaji kwa Bidhaa za Taa. | Inatumiwa kwa kawaida katika miradi ya ununuzi wa serikali na ruzuku, kuimarisha ushindani wa soko. |