📌 Product Overview
The XL-2012WWC-DS is a surface-mount device (SMD) LED from XINGLIGHT, falling into the standard 2012 metric package size (2.0mm x 1.2mm x 0.8mm). 💡 It features a high-brightness warm white emitting chip encapsulated in a yellow colloid, designed to deliver consistent lighting performance for compact electronic assemblies.
This component is ideally suited for applications requiring high luminous intensity within a constrained footprint. The device balances brightness (500–800 mcd) with a warm color temperature (2800K–3400K), making it a reliable choice for backlighting and indicator applications. 👇 Design engineers should focus on its drive current compatibility and thermal limits during the PCB layout phase.
💡 Typical Applications
Based on the 2012 form factor and warm white optical characteristics, the XL-2012WWC-DS is utilized in the following scenarios:
- Channel Letters & Signage: Illuminating logos and advertising signs where warm tones are preferred for branding.
- Consumer Electronics: Backlighting for button indicators or small displays on household appliances.
- Lighting Decoration: Architectural accent lighting and mood lighting strips.
- Arts & Crafts: Integrated into wearable electronics or costume lighting.
- Advertising Lightboxes: Providing uniform edge lighting for thin profile lightboxes.
📊 Key Technical Specifications
The following table outlines the optical and electrical performance metrics under standard test conditions (Ta=25℃).
| Parameter | Symbol | Test Condition | Min / Typ / Max | Unit | Notes |
|---|---|---|---|---|---|
| Forward Voltage | VDD | Operating | 2.0 - 4.5 | V | Operating Range |
| Driving Current | IOL | VDS=1.0V | 20 | mA | Continuous Drive |
| Luminous Intensity | IV | IF=20mA | 500 - 800 | mcd | E4-E7 Binning |
| Color Temperature | TC | IF=20mA | 2800 - 3400 | K | Warm White (WW) |
| Viewing Angle | 2θ1/2 | IF=20mA | 120 | deg | Half-intensity angle |
🚨 Absolute Maximum Ratings & Process Limits
To ensure reliability and prevent catastrophic failure, the electrical and thermal stresses on the XL-2012WWC-DS must not exceed the following limits. ⚠️ Exceeding these values may cause permanent damage to the LED die or encapsulation.
| Parameter | Symbol | Ratings | Unit | Notes |
|---|---|---|---|---|
| Operating Voltage | VDD | Max 4.5 | V | Absolute Max |
| Operating Current | IOL | 20 | mA | Recommended Drive |
| Power Dissipation | PD | - | mW | Dependent on PCB thermal pad |
| Operating Temp. | TOPR | -40 ~ +85 | ℃ | Ambient Range |
| Storage Temp. | TSTR | -40 ~ +85 | ℃ | Non-operating |
| Moisture Sensitivity | MSL | Level 3 | - | Floor life: 168 hours |
🔒 Package, Dimensions & Assembly Notes
The XL-2012WWC-DS utilizes a standard EIA 2012 footprint with a height profile of 0.8mm. Key assembly considerations for SMT processing include:
- Packaging: Supplied in EIA standard tape-and-reel format suitable for high-speed automatic pick-and-place machines.
- Soldering: Designed for reflow soldering processes. It supports both lead-free and leaded profiles.
- Reflow Profile:
- Lead-free: Peak temp 255°C (+0/-5), time above 217°C (60-120s).
- Leaded: Peak temp 235°C (+5/-0), time above 183°C (60-150s).
- Moisture Sensitivity: Classified as MSL 3. If the bag is opened, components must be mounted within 168 hours to avoid popcorn cracking during reflow.
🚀 Sourcing & Supply Considerations
When integrating the XL-2012WWC-DS into your BOM, consider the following supply chain factors to ensure consistency and yield:
- Bin Selection: Verify the specific luminosity (E4-E7) and temperature (WW2-4 to WW6-4) bin codes required for your design uniformity.
- Authenticity: Source components through authorized XINGLIGHT channels to guarantee ROHS compliance and reliability standards.
- Sample Evaluation: Always request samples from the specific production batch to validate color temperature consistency before mass production ordering.
❓ Frequently Asked Questions
Q: What is the typical forward voltage for the XL-2012WWC-DS?
A: The datasheet specifies an operating voltage range (VDD) of 2.0V to 4.5V. For precise driver circuit design, the specific Vf should be measured at 20mA, typically falling within the lower end of this spectrum for warm white LEDs.
Q: Can this LED be used with a lead-free soldering process?
A: Yes, the XL-2012WWC-DS is rated for both leaded and lead-free infrared reflow processes. For lead-free, the peak temperature should not exceed 255°C (with a tolerance of -5°C / +0°C).
Q: What does Moisture Sensitivity Level (MSL) 3 mean for storage?
A: MSL 3 indicates that once the vacuum-sealed package is opened, the components have a floor life of 168 hours (one week) at factory conditions (30℃ / 60% RH) before they must be reflowed. If this time is exceeded, baking is required to remove moisture.
Q: How do I select the correct brightness bin?
A: The XL-2012WWC-DS is binned by luminous intensity. Codes E4 through E7 cover the range of 500 to 800 mcd. Selection depends on your required light output and homogeneity. Mixing bins in a single array may cause visible unevenness in lighting.
Q: Is this component compatible with automatic placement machines?
A: Yes, it is packaged in EIA standard compliant tape-and-reel formats, making it fully compatible with modern automatic SMD mounters (pick-and-place machines).
