📌 Product Overview
The XINGLIGHT XL-3528SYGC is a standard 3528 package SMD LED designed for reliable general-purpose illumination. 💡 It features a yellow-green light source with a water-transparent colloid, optimized for applications requiring a balance between luminous intensity and wide-angle dispersion. 📉 While the absolute maximum ratings suggest robustness, successful integration depends heavily on managing the forward voltage variance and strictly adhering to moisture sensitivity levels during reflow. This component is ideally suited for automated SMT production lines where consistent color temperature and viewing angle are critical for end-product quality.
💡 Typical Applications
Based on its optical characteristics and 120° viewing angle, the XL-3528SYGC is most effective in scenarios requiring diffuse, uniform lighting rather than focused spotlighting.
- Indoor & Auxiliary Lighting: Ideal for backlighting panels and providing general ambient illumination in residential or commercial settings.
- Commercial Display & Retail: 👉 Specifically designed for jewelry display cabinets and counter lighting, where the yellow-green hue enhances visual appeal.
- Signage & Advertising: Suitable for luminescent characters and advertising modules, offering wide visibility angles.
- Shop Lighting: Provides efficient energy usage for商场照明 (shop lighting) systems requiring reliable continuous operation.
📊 Key Technical Specifications
The performance window is defined by the following optical and electrical parameters under standard test conditions (Ta=25°C).
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | Iv | 80 | - | 180 | mcd | IF = 20mA |
| Dominant Wavelength | λd | 565 | - | 575 | nm | IF = 20mA |
| Peak Wavelength | λp | - | 570 | - | nm | IF = 20mA |
| Forward Voltage | VF | 1.8 | - | 2.4 | V | IF = 20mA |
| Viewing Angle | 2Ø1/2 | - | 120° | - | deg | IF = 20mA |
| Reverse Current | IR | - | - | ≤ 5 | μA | VR = 5V |
⚠️ Design Note: The wide range in luminous intensity (80-180 mcd) necessitates binning (grading) strategies during procurement to ensure visual uniformity in the final product.
🔒 Absolute Maximum Ratings & Process Limits
Exceeding these parameters risks irreversible damage to the LED. These limits are crucial for thermal and electrical design safety margins.
| Parameter | Symbol | Value | Unit | Notes |
|---|---|---|---|---|
| Max Power Dissipation | PD | 50 | mW | |
| Max Continuous Forward Current | IF | 20 | mA | |
| Peak Forward Current | IFP | 80 | mA | Pulse width ≤ 0.1ms, Duty ≤ 1/10 |
| Max Reverse Voltage | VR | 5 | V | |
| ESD Ability | ESD | 2000 | V | Antistatic capability |
| Operating Temperature | TOPR | -40 ~ +85 | °C | |
| Storage Temperature | TSTR | -40 ~ +85 | °C | |
| Soldering Temp/Time | TSOL | 260 | °C | ≤ 6 Seconds |
👉 Critical Process Warning: The component has a Moisture Sensitivity Level (MSL) of 3. Proper baking and handling are required prior to reflow soldering to prevent popcorning or internal cracking.
📦 Package, Dimensions & Assembly Notes
The XL-3528SYGC utilizes the industry-standard 3528 form factor, ensuring compatibility with most modern pick-and-place machines.
- Dimensions: The outline dimensions are 3.5mm (L) x 2.8mm (W) x 1.9mm (H).
- Packaging: EIA standard compliant packaging for SMT automatic production.
- Soldering Compatibility: Suitable for infrared reflow soldering processes.
- Reliability: The device is designed to withstand lead soldering temperatures up to 260°C for a maximum of 6 seconds.
✨ Assembly Tip: For infrared reflow, strictly follow the profile: preheat, soak (max 3°C/s ramp), and peak temperature limits (235°C for leaded, 255°C for lead-free) to maintain the 2000V ESD rating and structural integrity.
🚀 Sourcing & Supply Considerations
To ensure supply chain stability and technical consistency, consider the following factors when integrating the XL-3528SYGC into your BOM.
- Bin Consistency: Specify brightness (D2-D4) and voltage (N12-7 to N12-9) bins to match specific design requirements.
- Authenticity: Verify channels to ensure compliance with ROHS environmental protection directives.
- MSL Handling: Confirm that suppliers adhere to MSL Level 3 dry-pack requirements to prevent field failures.
- Sample Support: Request samples for prototype testing to validate the 120° viewing angle in your specific optical enclosure.
❓ FAQ
Q: What is the forward voltage range for this LED? A: The forward voltage (VF) ranges from a minimum of 1.8V to a maximum of 2.4V when driven at the standard test current of 20mA. Designers should account for this variance in their driver circuitry.
Q: Can this LED be used for outdoor applications? A: While the operating temperature range is -40°C to +85°C, the datasheet primarily highlights indoor applications like counter and jewelry lighting. For outdoor use, ensure the IP rating of the final fixture protects the component from moisture ingress.
Q: What does MSL Level 3 mean for my production line? A: MSL Level 3 means the component is sensitive to moisture. If the floor life exceeds 168 hours (since vacuum seal opening), you must bake the components before reflow soldering to prevent internal damage.
Q: What is the peak current capability? A: The XL-3528SYGC can handle a peak forward current (IFP) of 80mA. However, this is strictly limited to pulses with a width ≤ 0.1ms and a duty cycle ≤ 1/10.
Q: How is the color consistency managed? A: The dominant wavelength is graded between 565nm and 575nm. To ensure visual consistency, you should select specific bins (e.g., HYG03 to HYG06) when placing volume orders.
Q: Is this component ROHS compliant? A: Yes, the datasheet explicitly states that the product is manufactured using environmental protection processes that comply with the ROHS Directive.
