📌 Product Overview
The XL-2106UWC is a compact, surface-mount LED (SMD LED) in the 2120 form factor (2.1x1.0mm), manufactured by XINGLIGHT. It is designed for high-brightness white light emission with a wide 120° viewing angle. 🎯 This component targets high-density PCBA applications where space efficiency and consistent optical output are critical. It is specifically engineered for general illumination indicators, consumer electronics, and status light functions, balancing luminous intensity (up to 1000 mcd) with a standard forward voltage drive.
🚀 Typical Applications & Design Context
Based on its 2120 footprint and MSL 3 rating, the XL-2106UWC is optimized for:
- Consumer Electronics & PCBA: Ideal for status indicators on control panels and IoT devices due to low power consumption (Max 70mW).
- Home Appliances & Lighting: Suitable for backlighting in white goods (ACs, refrigerators) and auxiliary lighting in toys or gifts.
- Automotive Interiors: While listed for automotive electronics, engineers must verify specific AEC-Q102 compliance if used for critical dashboard lighting, as the datasheet lists general reliability.
- Design Fit: The 120° viewing angle makes it superior to standard narrow-angle LEDs for diffuser-based backlighting units, ensuring uniform light distribution without hotspots.
📉 Key Technical Specifications
| Parameter | Condition | Min / Typ / Max | Unit | Note |
|---|---|---|---|---|
| Luminous Intensity (Iv) | IF=20mA | 450 / - / 1000 | mcd | High brightness binning (E3-E9) |
| Forward Voltage (Vf) | IF=20mA | 2.6 / - / 3.2 | V | Standard Indium Gallium Nitride (InGaN) range |
| Color Temperature (CCT) | IF=20mA | 7500 / - / 12000 | K | Cool White range |
| Viewing Angle (2θ1/2) | IF=20mA | - / 120 / - | Deg | Wide emission for uniform lighting |
| Reverse Voltage (Vr) | Ir=5μA | - | 5 | V |
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these parameters risks immediate catastrophic failure or latent thermal degradation.
| Parameter | Symbol | Max Value | Unit | Condition |
|---|---|---|---|---|
| Max Power Dissipation | Pd | 70 | mW | Ta=25°C |
| Peak Forward Current | Ifp | 80 | mA | Pulse width ≤0.1ms, Duty ≤1/10 |
| ESD Tolerance | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temp | Topr | -40 ~ +85 | °C | Ambient range |
⚡ E-E-A-T Insight: The 2000V ESD rating is relatively low compared to high-reliability industrial LEDs (often rated >8kV). In manufacturing environments (Huaqiangbei or automated SMT lines), improper grounding during handling can lead to immediate "LED Death" (short circuit) or latent degradation (dimming). Engineers must enforce strict ionization and wrist-strap protocols at the pick-and-place stage.
🏗️ Package, Dimensions & Assembly Notes
- Form Factor: 2120 (Metric 2010). Dimensions: 2.1mm (L) x 0.55mm (W) x 1.0mm (H).
- Soldering: Designed for standard Reflow soldering processes.
- MSL Level:Level 3. This is a critical supply chain factor. Components must be baked (pre-conditioned) at 125°C for 24 hours if exposed to ambient humidity (>60% RH) for more than 168 hours to prevent "popcorning" or delamination during reflow.
- Placement: The small 0.55mm width requires precise stencil design (aperture ratio) to ensure sufficient solder paste deposit, preventing tombstoning.
🔗 Procurement & Sourcing Insights
- Binning Consistency: The datasheet shows wide Vf (2.6-3.2V) and Iv (450-1000 mcd) ranges. For mass production, procurement must lock specific Bin codes (e.g., E7 for brightness, N13-3 for voltage). Unspecified purchases will result in visible brightness inconsistencies on the same panel.
- Alternative Validation: When swapping for major brands (e.g., Nichia, Samsung, Osram), verify the luminous flux vs. temperature curve. Lower-cost alternatives often suffer severe thermal droop, appearing dimmer at 50°C+ operating temps despite identical 20mA specs.
- Risk Control: XINGLIGHT is a volume-manufactured brand. Always verify traceability codes to avoid mixed-batch issues.
❓ FAQ
Q: Can I drive this LED at 30mA for higher brightness?
A: ❌ No. The absolute maximum continuous forward current is 20mA. While it may survive briefly at 30mA, the junction temperature will exceed limits, causing rapid thermal decay and permanent lumen depreciation.
Q: What is the risk of using this in an automotive interior dashboard?
A: ⚠️ The datasheet lists "Automotive Electronics" but does not explicitly claim AEC-Q102 qualification. For instrument clusters (critical safety), demand the AEC-Q102 test report. For simple ambient lighting (footwell lights), it is generally acceptable.
Q: How do I handle the MSL 3 rating during SMT?
A: If the vacuum-sealed bag has been open for more than 24 hours (or the humidity indicator card shows >10% RH), you must bake the reels at 125°C for 24 hours before reflow. Skipping this causes internal moisture to expand, cracking the LED case.
Q: Is the 12000K color temperature suitable for night lights?
A: It is quite "Cool" (bluish-white). For warm night lights, look for a lower CCT (2700K-4000K). This 7500K-12000K range is better for task indicators or daylight-mimicking appliances.
