📌 Product Overview
The XL-2835SURC-02FJ is a standard 2835 package Surface Mount Device (SMD) LED designed by XINGLIGHT. It features a red light emitter with a transparent water-clear colloid, housed in a compact 2.8mm x 3.5mm footprint. This component is specifically engineered for high-intensity applications where board space is at a premium. 💡
Target applications primarily include indoor lighting fixtures, commercial signage, and LCD backlights. The real design focus for this model lies in its robust thermal performance and high luminous intensity, reaching up to 1800 mcd at 60mA. It is fully compliant with ROHS environmental standards and is optimized for automated SMT production lines.
💡 Typical Applications
Based on its optical characteristics and 120-degree viewing angle, the XL-2835SURC-02FJ is suitable for a wide range of general-purpose and commercial lighting scenarios. 👇
- Indoor Lighting: Ideal for fluorescent tube replacements, rigid or flexible light strips, and downlights requiring uniform red illumination.
- Commercial Signage: Effective for advertising words, channel letters, and light boxes where high contrast and visibility are essential.
- Backlighting: Used in LCD backlighting for indicator panels or display systems.
- Decorative Lighting: Suitable for flexible light strips used in architectural or accent lighting.
📊 Key Technical Specifications
The following electrical and optical characteristics are measured under standard test conditions (Ta=25°C). These parameters help designers determine the appropriate drive current and expected light output. 📈
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | 1150 | - | 1800 | mcd | IF = 60 mA |
| Dominant Wavelength | λd | 620 | - | 630 | nm | IF = 60 mA |
| Peak Wavelength | λp | - | 625 | - | nm | IF = 60 mA |
| Forward Voltage | VF | 1.8 | - | 2.4 | V | IF = 60 mA |
| Viewing Angle | 2Ø1/2 | - | 120° | - | deg | IF = 60 mA |
| Reverse Current | IR | - | - | ≤5 | μA | VR = 5 V |
🚨 Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent damage to the device or significantly reduce its reliability. ⚠️ These limits are critical for designing protection circuits and ensuring the LED operates safely within its thermal envelope.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Power Dissipation | PD | 200 | mW | @ Ta=25°C |
| Max Continuous Forward Current | IF | 60 | mA | |
| Peak Forward Current | IFP | 200 | mA | Pulse width ≤0.1ms, Duty ≤1/10 |
| Max Reverse Voltage | VR | 5 | V | |
| ESD Ability | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temperature | TOPR | -40 ~ +85 | °C | |
| Soldering Temp/Time | TSOL | 260 | °C | ≤ 6 Seconds |
🔒 Package, Dimensions & Assembly Notes
The XL-2835SURC-02FJ utilizes the industry-standard 2835 form factor, which is widely adopted for its balance of size and thermal performance. The outline dimensions are 2.8mm (Length) x 3.5mm (Width) x 0.8mm (Height). 🔧
Assembly & Soldering Guidelines:
- MSL Level: The component is classified at Moisture Sensitivity Level 3 (MSL 3). Pre-baking is required if the moisture barrier bag has been exposed for more than 168 hours.
- Reflow Profile: Suitable for both leaded and lead-free infrared reflow processes.
- Leaded: Max temp 235°C, time above 183°C (60-150s).
- Lead-free: Max temp 255°C, time above 217°C (60-120s).
- SMT Compatibility: Designed for EIA standard packaging and fully compatible with high-speed automated pick-and-place machines.
🚀 Sourcing & Supply Considerations
When integrating the XL-2835SURC-02FJ into your supply chain, consider the following factors to ensure production continuity and component authenticity. 📦
- Bin Selection: This model is available in specific brightness (F2-F5) and voltage (N12-7 to N12-9) bins. Verify the specific bin code required for your design consistency before mass production.
- Packaging: Components are supplied in EIA standard compliant tape and reel formats, optimized for SMT assembly.
- Authenticity: Always source through authorized channels to guarantee ROHS compliance and avoid counterfeit components that may not meet the specified luminous intensity or reliability standards.
- Samples: Request samples from XINGLIGHT representatives to validate the color consistency and thermal performance in your specific fixture design.
❓ FAQ
Q: What is the maximum current I can drive the XL-2835SURC-02FJ with? A: The Maximum Continuous Forward Current is 60 mA. While you can pulse it up to 200 mA (duty cycle ≤1/10), exceeding 60 mA continuously without adequate heat sinking will likely degrade the LED lifespan or cause immediate failure.
Q: What does "MSL 3" mean for my assembly process? A: MSL 3 means the LED is sensitive to moisture. If the vacuum-sealed bag has been open for more than 168 hours (floor life), you must bake the components at a specified temperature (usually 125°C ±5°C) before reflow soldering to prevent internal cracking ("popcorning").
Q: Can I use a standard lead-free reflow profile for this LED? A: Yes, the datasheet explicitly supports lead-free processes. The peak temperature should not exceed 255°C, and the time above 217°C should be controlled between 60 to 120 seconds to avoid thermal damage.
Q: How do I ensure consistent color across my lighting array? A: You should order LEDs from the same Dominant Wavelength bin (e.g., HR02 or HR03). Mixing bins can result in visible color variations in the final product. Tight binning is available for high-end applications.
Q: What is the typical forward voltage I should design for? A: The forward voltage typically ranges from 1.8V to 2.4V at 60mA. When designing your driver circuit, account for the maximum voltage (2.4V) to ensure current regulation, and the minimum (1.8V) to check for potential over-current issues if the LED is driven by a constant voltage source with limiting resistors.
