📌 Product Overview
The XL-2835UYC-02FJ is a high-performance Yellow SMD LED designed by XINGLIGHT for compact, high-brightness lighting solutions. 💡 Housed in a standard 2835 package (2.8mm x 3.5mm x 0.8mm), it features a water-clear colloid that maximizes light output while maintaining a compact footprint for dense arrays.
Target applications primarily include indoor lighting, commercial signage, and LCD backlights. However, the real design focus lies in its thermal management. With a power dissipation of up to 200mW at 60mA drive current, engineers must carefully evaluate the 120° viewing angle and forward voltage characteristics to prevent luminous depreciation in sealed fixtures.
🚀 Typical Applications
Based on its dominant wavelength (585-595nm) and high luminous intensity (1450-1800 mcd), this component is ideal for environments requiring warm, high-contrast visibility.
- Commercial Lighting: 📈 High-intensity advertising words and light boxes where the yellow color cuts through ambient light effectively.
- Decorative Lighting: Flexible light strips that benefit from the low 0.8mm profile and 120° wide beam angle for even mixing.
- Indoor Illumination: Downlights and fluorescent tube replacements.
- Backlighting: LCD indicator lights requiring specific HY03-HY06 wavelength bins for color consistency.
⚡ Key Technical Specifications
The following optical and electrical parameters are measured under standard conditions (Ta=25°C, IF=60mA). Designers should pay close attention to the Voltage Grading and Brightness Grading codes when specifying for mass production to ensure uniformity.
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Luminous Intensity | Iv | 1450 | - | 1800 | mcd |
| Dominant Wavelength | λd | 585 | 590 | 595 | nm |
| Forward Voltage | Vf | 1.8 | - | 2.4 | V |
| Viewing Angle | 2Ø1/2 | - | 120° | - | deg |
| Reverse Current | Ir | - | - | ≤5 | μA |
- Note: 💡 Bin codes (e.g., N12-7 for Voltage, HY03 for Color) are available for tight sorting.
🔒 Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure. The limits below define the safety boundaries for both electrical stress and environmental conditions.
| Parameter | Symbol | Max. Value | Unit | Conditions |
|---|---|---|---|---|
| Max Power Dissipation | Pd | 200 | mW | Ta=25°C |
| Max Continuous Forward Current | If | 60 | mA | - |
| Peak Forward Current | Ifp | 200 | mA | Pulse ≤0.1ms, Duty ≤1/10 |
| Max Reverse Voltage | Vr | 5 | V | - |
| ESD Ability | ESD | 2000 | V | Human Body Model |
| Operating Temperature | Topr | -40 ~ +85 | °C | - |
- ⚠️ Warning: While the LED can withstand up to 260°C soldering for ≤6S, prolonged operation near the max current requires adequate PCB heat sinking to maintain luminous efficacy.
📦 Package, Dimensions & Assembly Notes
The XL-2835UYC-02FJ utilizes a surface-mount technology (SMT) design optimized for automated assembly.
- Dimensions: The compact 2.8 x 3.5 x 0.8mm outline allows for high-density placement on rigid or flexible PCBs.
- Soldering Compatibility: 👇 Suitable for both Lead-free (Max 260°C) and Lead (Max 235°C) infrared reflow processes.
- Peak Temp: 255°C (Lead-free) / 235°C (Lead).
- Time above 217°C: 60-120 seconds.
- Moisture Sensitivity: The component is classified as MSL 3. Ensure proper baking before reflow if the moisture barrier bag has been open for more than 168 hours to prevent "popcorning" damage.
📥 Sourcing & Supply Considerations
To ensure supply chain stability and product authenticity, consider the following procurement strategies:
- Bin Selection: Always specify the Brightness (F4/F5) and Voltage (N12-7/8/9) bins to avoid color or brightness variation in batches.
- Sample Verification: Request pre-production samples to verify the CRI (Color Rendering Index) and Vf consistency in your specific driver circuit.
- Packaging: The product follows EIA standard packaging, compatible with most modern pick-and-place machines.
- Authenticity: Source exclusively through authorized XINGLIGHT channels or verified distributors to avoid counterfeits that fail to meet the 2000V ESD rating.
❓ FAQ
Q: What is the typical forward voltage for this Yellow LED? A: The forward voltage ranges from 1.8V to 2.4V when driven at 60mA. Designers should select the appropriate voltage bin (N12-7 to N12-9) to match their driver capabilities.
Q: Can this LED be used in outdoor signages? A: While it is rated for an operating temperature of -40°C to +85°C, it is primarily designed for indoor use. Outdoor applications require additional waterproofing (IP rating) measures at the module level, as the device itself is not inherently waterproof.
Q: What does the "MSL 3" rating mean for my assembly process? A: MSL 3 (Moisture Sensitivity Level) means the components must be soldered within 168 hours (1 week) of opening the vacuum-sealed bag. If not used in this time, they must be baked at 80°C for 24 hours to remove absorbed moisture before reflow soldering.
Q: How should I handle the ESD protection for these components? A: The XL-2835UYC-02FJ has an antistatic ability of 2000V. However, during assembly, standard ESD precautions (wrist straps, grounded mats, and ionizers) are mandatory to prevent latent damage that could reduce lifespan.
Q: What is the recommended footprint for this component? A: The footprint should accommodate the 2.8mm x 3.5mm body size. Refer to the "Outline Dimensions" section of the datasheet for the specific pad layout recommendations to ensure optimal mechanical strength and heat dissipation.
