📌 Product Overview
The XL-2835WWC-1W is a high-performance Warm White SMD LED from XINGLIGHT, designed for 1W power applications. 💡 It features a 2.8x3.5x0.8mm package with a 6V forward voltage architecture, making it ideal for series-striplight configurations where fewer components are desired.
Target applications include indoor lighting, commercial signage, and LCD backlights. The real design focus lies in balancing its 150mA drive current with thermal management to maintain luminous efficacy. With a CRI of 80 and a viewing angle of 120 degrees, it offers a robust solution for projects requiring high-quality warm white light (3000K) in a compact footprint.
🚀 Typical Applications
Based on the 2835 footprint and 6V electrical characteristics, this component is best suited for:
- Indoor Lighting: 💡 High-efficiency fluorescent tubes, rigid light bars, and residential downlights.
- Commercial Signage: 🔠 Channel letters and advertising lightboxes requiring consistent color temperature (WW2-4 to WW6-4 bins).
- Backlighting: 📺 LCD strips for monitors and TVs where uniform 120-degree beam spread is critical.
- Decorative Lighting: ✨ Flexible light strips used for accent and ambient lighting in hospitality or retail environments.
📊 Key Technical Specifications
The following optical and electrical parameters are measured at standard test conditions (Ta=25°C, IF=150mA). Designers should use the "Typ." values for theoretical estimates and "Max." values for safety margin calculations.
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Luminous Flux | Φ | 100 | – | 130 | LM |
| Color Temperature | TC | 2800 | 3000 | 3400 | K |
| Forward Voltage | VF | 5.8 | 6.2 | 6.4 | V |
| CRI (Rendering Index) | CRI | – | 80 | – | – |
| Viewing Angle | 2θ1/2 | – | 120 | – | Deg |
| Reverse Current | IR | – | – | 5 | μA |
🔒 Absolute Maximum Ratings & Process Limits
Exceeding these limits may cause permanent damage or failure. 💥 These values are critical for setting protection thresholds in your driver circuit design.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Power Dissipation | PD | 1000 | mW | @ Ta=25°C |
| Max Forward Current | IF | 150 | mA | Continuous DC |
| Peak Forward Current | IFP | 200 | mA | Pulse ≤0.1ms, Duty ≤1/10 |
| ESD Ability | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temperature | TOPR | -40 ~ +85 | °C | Requires proper heatsinking |
| Storage Temperature | TSTR | -40 ~ +85 | °C | |
| Soldering Temp/Time | TSOL | 260 | °C | ≤10 Seconds |
📦 Package, Dimensions & Assembly Notes
This component utilizes the standard 2835 surface-mount package (2.8mm x 3.5mm x 0.8mm). 📏 It is compatible with automated SMT pick-and-place machines and standard EIA packaging tape.
Assembly & Soldering Guidelines:
- Reflow Profile: 🔥 Suitable for infrared reflow soldering.
- Lead-Free Process: Peak temp 255°C (+0/-5), time above 217°C: 60-120s.
- Lead Process: Peak temp 235°C (+5/-0), time above 183°C: 60-150s.
- Moisture Sensitivity: 💧 Classified as MSL Level 3. Floor life is 168 hours; bake before reflow if exposed to ambient for longer.
- Cleaning: Use mild solvents; avoid ultrasonic cleaning which may damage the internal bond wires.
📈 Sourcing & Supply Considerations
To ensure supply chain stability and product performance, consider the following:
- Bin Selection: 🔎 Verify specific bin codes (Brightness K3-K6, Voltage N14-9 to N15-3, CCT WW2-4 to WW6-4) before mass production to ensure color consistency.
- Authenticity: Source exclusively through authorized XINGLIGHT channels to avoid counterfeit components with unreliable thermal performance.
- Sample Testing: 🧪 Always request samples from the specific batch to validate the CRI and lumen output in your actual housing fixture.
- Technical Support: Consult XINGLIGHT application notes for custom PCB pad designs to optimize heat dissipation.
❓ FAQ
Q: What is the forward voltage requirement for this LED? A: The typical forward voltage is 6.2V, with a range of 5.8V to 6.4V at 150mA. This is higher than standard 3V 2835 LEDs, requiring a specific constant current driver configuration.
Q: Can this LED be used in outdoor lighting fixtures? A: While the operating temperature range is -40°C to +85°C, the IP rating depends on your housing. The LED itself is not waterproof but is designed to withstand high humidity storage tests (85°C / 95% RH).
Q: What does MSL Level 3 mean for my production line? A: MSL 3 means the components are sensitive to moisture. After opening the vacuum-sealed bag, you must use them within 168 hours (1 week) or bake them (125°C for 24 hours) prior to reflow soldering to prevent "popcorning" damage.
Q: What is the recommended soldering profile for lead-free assembly? A: The peak temperature should not exceed 255°C, with the temperature staying above 217°C for 60 to 120 seconds. Ensure the ramp-up rate does not exceed 3°C/second to minimize thermal shock.
Q: How do I select the correct brightness bin? A: The XL-2835WWC-1W is sorted into bins K3 (100-110 lm) through K6 (130-140 lm). For uniform lighting, select a single bin code for your production batch to avoid visible brightness differences.
