Bayanin Fasaha na LED na Tsarin 3020 - 3.0x2.0mm - 3.2V - 0.5W - Fari - Takardun Fasaha na Turanci

1. Bayanin Samfur

Tsarin 3020 wani LED ne mai ƙarfi, mai chip guda, wanda aka ƙera don aikace-aikacen haske na gabaɗaya waɗanda ke buƙatar ingantaccen aiki da kuma fitar da launi mai daidaito. Wannan LED fari mai 0.5W yana ba da ma'auni na inganci, fitar da lumen, da kuma sarrafa zafi a cikin ƙaramin ƙafa na 3.0mm x 2.0mm.

Fa'idodi na Asali:Babban fa'idodin wannan tsarin sun haɗa da daidaitaccen tsarin rarrabawa don zafin launi da kuma ƙarfin haske, wanda ke tabbatar da daidaiton launi a cikin samarwa. Yana da faɗin kusurwar kallo na digiri 110, wanda ya sa ya dace da aikace-aikacen da ke buƙatar haske mai faɗi. An ƙera samfurin don cika ma'auni na masana'antu don hankalin danshi da kuma gudanar da gishiri.

Kasuwar da aka yi niyya:An yi niyyar wannan LED ga masana'antun ƙirar LED, fuskokin haske, na'urorin hasken baya, hasken ado, da sauran aikace-aikacen da ake buƙatar ƙaramin tushen haske mai fari, mai inganci, kuma mai daidaito.

2. Zurfin Binciken Sigogi na Fasaha

2.1 Matsakaicin Matsakaicin Matsakaici

Sigogi masu zuwa suna bayyana iyakokin da za su iya haifar da lalacewa na dindindin ga LED. Ba a tabbatar da aiki a ƙarƙashin waɗannan sharuɗɗan ba.

• Ƙarfin Halin Gaba (IF):200 mA (Ci gaba)
• Ƙarfin Halin Gaba na Bugun Jini (IFP):300 mA (Faɗin bugun jini ≤10ms, Zagayowar aiki ≤1/10)
• Rushewar Wutar Lantarki (PD):680 mW
• Zazzabi na Aiki (Topr):-40°C zuwa +80°C
• Zazzabi na Ajiya (Tstg):-40°C zuwa +80°C
• Zazzabi na Haɗin gwiwa (Tj):125°C
• Zazzabi na Gishiri (Tsld):Gishiri mai juyawa a 230°C ko 260°C na iyakar daƙiƙa 10.

2.2 Halayen Lantarki & Gani na Yau da Kullun

An auna shi a daidaitaccen yanayin gwaji na zazzabin gishiri na 25°C (Ts).

• Ƙarfin Halin Gaba (VF):Yau da Kullun 3.2V, Matsakaicin 3.5V (a IF=150mA)
• Ƙarfin Halin Baya (VR):5V
• Ƙarfin Halin Baya (IR):Matsakaicin 10 µA
• Kusurwar Kallo (2θ1/2):110°

3. Bayanin Tsarin Rarrabawa

Samfurin yana amfani da cikakken tsarin rarrabawa don tabbatar da daidaiton lantarki da na gani. Umarni suna ƙayyade mafi ƙarancin ƙima don ƙarfin haske da kuma yankunan launi da aka ayyana don zafin launi.

3.1 Rarrabawar Zafin Launi (CCT)

LED yana samuwa a cikin daidaitattun kwandon Zafin Launi mai Alaƙa (CCT) da yawa, kowanne an bayyana shi da manufar CCT da takamaiman ellips na launi akan zanen CIE.

• 2725K ±145K (Kwandon: 27M5)
• 3045K ±175K (Kwandon: 30M5)
• 3985K ±275K (Kwandon: 40M5)
• 5028K ±283K (Kwandon: 50M5)
• 5665K ±355K (Kwandon: 57M7)
• 6530K ±510K (Kwandon: 65M7)

Lura:Tsarin umarnin samfurin yana ƙayyade yankin launi, ba mafi girman ƙimar CCT ba. Samfuran da aka aika koyaushe za su kasance cikin ellips na launi da aka umarta.

3.2 Rarrabawar Ƙarfin Hasken Hasken

Ana rarraba ƙarfin haske bisa Zafin Launi da Ma'aunin Fitar Launi (CRI). Tebur suna bayyana mafi ƙarancin ƙima da ƙima na yau da kullun a 150mA. Lambobin ƙarfin haske na daidaitaccen (E5, E6, E7, da sauransu) suna wakiltar kewayon a cikin lumen.

Misali don 70 CRI, Fari Mai Tsaka-tsaki (3700-5000K):

• Lambar E6: 50-54 lm (Mafi ƙarancin-Yau da Kullun)
• Lambar E7: 54-58 lm
• Lambar E8: 58-62 lm
• Lambar E9: 62-66 lm

Akwai tebur masu kama da waɗannan don Fari Mai Dumi, Fari Mai Sanyi, da kuma nau'ikan su masu babban CRI (80 CRI).

3.3 Rarrabawar Ƙarfin Halin Gaba

Hakanan ana rarraba ƙarfin halin gaba don tabbatar da daidaiton ƙarfin lantarki a cikin tsararrun jeri.

• Lambar B: 2.8 - 2.9V
• Lambar C: 2.9 - 3.0V
• Lambar D: 3.0 - 3.1V
• Lambar E: 3.1 - 3.2V
• Lambar F: 3.2 - 3.3V
• Lambar G: 3.3 - 3.4V
• Lambar H: 3.4 - 3.5V

3.4 Bayanan Ellips na Launi

Kowane kwandon zafin launi yayi daidai da takamaiman ellips akan zanen launi na CIE 1931, wanda aka ayyana shi da daidaitattun tsakiyar sa (x, y), babban axis na rabi (b), ƙananan axis na rabi (a), da kusurwar karkata (Φ). Wannan bayanan yana da mahimmanci don daidaitaccen haɗa launi da kuma sarrafa inganci.

4. Binciken Lankwasa na Aiki

4.1 Lankwasa Halayen IV

Lankwasa na Ƙarfin Halin Gaba da Ƙarfin Halin Gaba (IV) yana nuna alaƙar yau da kullun ta ma'auni. A ƙarfin aiki da aka ba da shawarar na 150mA, ƙarfin halin gaba yawanci yana kusa da 3.2V. Dole ne masu ƙira su yi amfani da direbobi masu iyakancewa na yanzu, ba tushen wutar lantarki ba, don tabbatar da aiki mai ƙarfi.

4.2 Ƙarfin Hasken Hasken Dangane da Ƙarfin Halin Gaba

Wannan lankwasa yana kwatanta alaƙa tsakanin ƙarfin tuƙi da fitar da haske. Ƙarfin haske yana ƙaruwa tare da ƙarfin lantarki amma yana nuna yanayin ƙasa da layi a manyan ƙarfin lantarki saboda ƙaruwar zazzabin haɗin gwiwa da raguwar inganci. Ba a ba da shawarar yin aiki sosai sama da 150mA don mafi kyawun rayuwa da inganci.

4.3 Rarraba Ƙarfin Bakan (SPD)

Lankwasa na ƙarfin bakan dangane yana nuna bakan fitarwa don kewayon CCT daban-daban (misali, 2600-3700K, 3700-5000K, 5000-10000K). CCT masu dumi suna da ƙarin ƙarfi a yankin ja/rawaya, yayin da CCT masu sanyi suna da kololuwar shuɗi. Lankwasa yana da mahimmanci don ƙididdige ma'aunin fitar da launi.

4.4 Zazzabin Haɗin gwiwa da Ƙarfin Bakan Dangane

Wannan jadawali yana kwatanta yadda fitarwar bakan ke canzawa tare da ƙaruwar zazzabin haɗin gwiwa (Tj). Yawanci, yayin da Tj ya tashi, tsayin tsayin kololuwar zai iya canzawa kaɗan, kuma gabaɗayan ƙarfin zai iya raguwa. Wannan yana jaddada mahimmancin ingantaccen sarrafa zafi a cikin ƙirar aikace-aikace don kiyaye daidaiton launi da fitar da haske.

5. Bayanin Injina & Kunshin

5.1 Girman Kunshin

LED yana da daidaitaccen ƙafar SMD 3020 (3.0mm x 2.0mm). Cikakkun zane-zane masu girma suna ƙayyade jikin kunshin, ruwan tabarau, da girman jagora tare da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun 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.2 Pad Pattern & Stencil Design

Separate drawings are provided for the recommended PCB land pattern (pad layout) and the solder paste stencil design. Adhering to these recommendations is critical for achieving proper solder joint formation, alignment, and thermal transfer during reflow soldering.

.3 Polarity Identification

The cathode (negative) terminal is typically marked on the LED package, often with a green marking or a notch in the lens. The PCB silkscreen and footprint should clearly indicate polarity to prevent reverse mounting.

. Soldering & Assembly Guidelines

.1 Moisture Sensitivity & Baking

The 3020 series LED is classified as moisture-sensitive according to IPC/JEDEC J-STD-020C. Exposure to ambient humidity after opening the moisture barrier bag can cause popcorn cracking or other damage during reflow.

Storage:Store unopened bags below 30°C/85% RH. After opening, store below 30°C/60% RH.

Baking Requirements:LEDs that have been removed from their original sealed packaging and exposed to ambient conditions must be baked before reflow.

Baking Method:Bake at 60°C for 24 hours on the original reel. Do not exceed 60°C. Use within 1 hour of baking or store in a dry cabinet (<% RH).

.2 Reflow Soldering Profile

A standard lead-free reflow profile is applicable. The maximum peak temperature at the LED solder joints should not exceed 260°C, and the time above 230°C should be limited to 10 seconds. Consult the detailed profile recommendations for preheat, soak, reflow, and cooling rates.

. Packaging & Ordering Information

.1 Packaging Specification

The LEDs are typically supplied on embossed carrier tapes wound onto reels, suitable for automated pick-and-place assembly. Standard reel quantities are specified (e.g., 2000 or 4000 pieces per reel). The reel is packaged inside a moisture barrier bag with a humidity indicator card.

.2 Model Numbering Rule

The part number is structured to encode key attributes: Series/Shape (e.g., 34 for 3020), Chip Count (S for single), Lens Code (00 for none, 01 for with lens), Color Code (L/C/W for white temperatures), Internal Code, Luminous Flux Code (e.g., E6), and Forward Voltage Code (e.g., D). An example is T3400SLA-E6D.

. Application Suggestions

.1 Typical Application Scenarios

• LED Modules and Light Engines:For panel lights, downlights, and troffers.
• Backlighting:Edge-lit or direct-lit signage and displays.
• Decorative Lighting:Strips, ropes, and accent lighting.
• Consumer Electronics:Indicator or status lighting.

.2 Design Considerations

• Thermal Management:Use a PCB with adequate thermal vias and, if necessary, a metal core (MCPCB) to dissipate heat and keep the junction temperature low for maximum lifetime and stable output.
• Current Drive:Always use a constant current driver. The recommended operating current is 150mA. Derating may be necessary in high ambient temperature environments.
• Optics:The 110-degree viewing angle is suitable for diffuse lighting. Secondary optics (lenses, reflectors) can be used to modify the beam pattern.
• ESD Protection:Implement standard ESD handling procedures during assembly, as LEDs are sensitive to electrostatic discharge.

. Technical Comparison & Differentiation

Compared to older 3528 packages, the 3020 series often offers a higher power density (0.5W vs. 0.2W typical) in a slightly smaller footprint, enabling more compact designs. The standardized, detailed binning system for both flux and voltage provides a significant advantage for applications requiring tight color and brightness matching over large production volumes, reducing the need for post-production sorting or calibration by the end-user.

. Frequently Asked Questions (FAQ)

.1 What is the difference between ordering by minimum flux vs. typical flux?

The specification defines bins by a minimum luminous flux value. This means all shipped LEDs will meet or exceed that minimum value. The \"typical\" value is provided for reference, but the actual flux may be higher. This system guarantees performance while allowing for normal manufacturing variation above the minimum.

.2 Why is baking necessary, and can I skip it if I use the LEDs quickly?

Baking is a critical process to remove absorbed moisture from the plastic package. Even short exposure to humid air can be sufficient to cause damage during the high-temperature reflow soldering process. It is not safe to skip baking based on time alone; the condition of the humidity indicator card inside the original bag must be checked to determine if baking is required.

.3 Can I drive this LED at 200mA continuously?

While 200mA is the absolute maximum continuous current rating, operating at this level will generate significant heat, reduce efficiency (lumen per watt), and potentially shorten the LED's lifetime. The recommended operating condition is 150mA for optimal performance and reliability. Operation at 200mA requires exceptional thermal management.

. Design and Usage Case Study

.1 Designing a 12V LED Module

Scenario:Creating a compact 12V input LED module with 6 LEDs in series.

Design Steps:

1. Electrical Design:Select LEDs from the same voltage bin (e.g., Bin D: 3.0-3.1V). The total forward voltage for 6 LEDs will be approximately 18.0V to 18.6V, which is higher than the 12V supply. Therefore, a step-up (boost) constant current driver is required, not a simple resistor.
2. Thermal Design:Mount the LEDs on an aluminum-core PCB (MCPCB). Calculate the total power dissipation (~0.5W per LED * 6 = 3W) and ensure the heatsinking is sufficient to keep the LED solder point temperature within the specified operating range, ideally below 60°C for long life.
3. Optical Consistency:Order all LEDs from the same luminous flux bin (e.g., E7) and color temperature bin (e.g., 40M5 for 4000K) to ensure uniform brightness and color across the module.
4. Assembly:Follow the moisture handling and reflow soldering guidelines precisely to prevent yield loss.

. Technical Principles

The LED operates on the principle of electroluminescence in a semiconductor chip, typically based on InGaN for white LEDs. A blue-emitting chip is coated with a phosphor layer. Part of the blue light is converted by the phosphor into longer wavelengths (yellow, red). The combination of the remaining blue light and the phosphor-converted light results in the perception of white light. The ratio of blue to yellow/red light determines the Correlated Color Temperature (CCT). The Color Rendering Index (CRI) is improved by using multiple phosphors to fill gaps in the spectrum. The forward voltage is a characteristic of the semiconductor material's bandgap and the chip construction.

. Industry Trends

The general trend in mid-power SMD LEDs like the 3020 series is towards higher efficacy (more lumens per watt), improved color consistency (tighter binning), and higher reliability at elevated operating temperatures. There is also a drive for higher CRI values (90+) for applications requiring excellent color fidelity, such as retail and museum lighting. Furthermore, the industry continues to refine moisture-resistant packaging materials and processes to simplify handling and improve robustness for a wider range of assembly environments. The development of new phosphor systems aims to provide better spectral quality and stability over the LED's lifetime.