📌 Product Overview
The XL-2520PDC is a high-performance 6-pin SMD LED designed for advanced full-color lighting applications. Featuring a dedicated pin for each Red, Green, and Blue chip, this component offers independent control over each color channel, enabling a vast spectrum of colors and sophisticated white balance tuning. Its compact 2.5mm x 2.0mm footprint makes it an ideal solution for space-constrained environments such as status indicators, ambient backlighting, and small-scale pixel matrices.
🎯 Typical Applications
- Consumer Electronics: Status indicators and RGB notifications for smartphones, tablets, and wearable devices.
- IoT & Smart Home: Visual feedback interfaces and ambient lighting strips for smart appliances.
- Automotive Interiors: Dashboard illumination, button backlights, and interior mood lighting.
- Optical Devices: Light sources for optical encoders and sensors.
- Industrial Equipment: Panel indicators and HMI (Human-Machine Interface) visualization elements.
⚡ Key Technical Specifications
| Parameter | Rating | Conditions |
|---|---|---|
| Part Number | XL-2520PDC | - |
| Package Type | SMD | 6-Pin |
| Dimensions | 2.5mm × 2.0mm × 0.7mm (Typ) | Reflow Soldering |
| Lens Color | Water Clear | - |
| Red Chip | 620nm ~ 625nm | 600 ~ 700 mcd |
| Green Chip | 520nm ~ 525nm | 1000 ~ 1300 mcd |
| Blue Chip | 460nm ~ 465nm | 350 ~ 500 mcd |
| Forward Voltage (Red) | 1.8V ~ 2.4V | If = 20mA |
| Forward Voltage (G/B) | 2.8V ~ 3.4V | If = 20mA |
| Viewing Angle | 120° | - |
Note: Luminous intensity (mcd) values are typical at 20mA forward current.
🚨 Absolute Maximum Ratings
| Parameter | Symbol | Maximum Value | Unit |
|---|---|---|---|
| Power Dissipation | Pd | 80 | mW (per chip) |
| Forward Current (Red) | If | 25 | mA |
| Forward Current (Green/Blue) | If | 25 | mA |
| Peak Forward Current | Ifp | 100 | mA (1/10 Duty, 10ms pulse) |
| Reverse Voltage | Vr | 5 | V |
| Operating Temperature | Topr | -40 ~ +85 | ℃ |
| Storage Temperature | Tstg | -40 ~ +100 | ℃ |
| Soldering Temp | Tsol | 260 | ℃ (Max 3s Reflow) |
Caution: Exceeding these limits may cause permanent damage to the device. Ensure adequate heat dissipation.
📦 Package, Dimensions & Assembly Notes
The XL-2520PDC utilizes the standard 2520 metric form factor (2.5mm L x 2.0mm W x 0.7mm H). The component is constructed with a white PCT reflector cup to enhance light reflection and contrast. It features a 6-pin layout (common anode configuration is standard, but common cathode configurations are available upon request).
Assembly Guidelines:
- Soldering: Designed for standard reflow soldering profiles.
- Moisture Sensitivity: The device is moisture sensitive; please bake according to IPC/JEDEC J-STD-033 if the moisture barrier bag has been opened or expired.
- Handling: Minimize stress on the SMT pads during PCB bending to avoid cracking the ceramic substrate.
🛒 Sourcing & Supply Considerations
When procuring the XL-2520PDC for volume production, it is critical to engage with XINGLIGHT sales representatives early to discuss wafer binning specifications. Because RGB LEDs can have color variations, ordering with specific chromaticity coordinates (CIE coordinates) or intensity bin codes ensures uniformity across your final product. Samples are typically available for engineering validation, while bulk orders are usually shipped in anti-static moisture barrier bags to prevent ESD damage during transit.
❓ FAQ
Q: Is the XL-2520PDC Common Anode or Common Cathode?
A: The standard XL-2520PDC configuration is Common Anode (CA), meaning the positive connection is shared, and the Red, Green, and Blue channels are controlled via the negative cathodes. However, XINGLIGHT can often supply Common Cathode (CC) variants depending on the volume requirement.
Q: What is the advantage of the 6-pin design over 4-pin RGB LEDs?
A: A 4-pin RGB LED typically shares either the anode or cathode for two colors, forcing them to be controlled simultaneously. The 6-pin design gives you individual control over all three colors (plus a shared pin). This allows for mixing light intensity digitally without complex external circuitry, providing smoother gradients and more accurate color mixing.
Q: Can this LED be used for outdoor signage?
A: While the chip is high brightness, the package itself is not rated for waterproof ingress (IP67). If used outdoors, the XL-2520PDC must be integrated into a sealed assembly or lens housing that protects the electronics from rain and humidity.
Q: How should I drive the RGB channels to achieve white light?
A: To achieve white, you must balance the current to each channel. Typically, Green requires slightly less current than Red and Blue to appear balanced to the human eye due to its higher luminous efficacy. We recommend testing different PWM ratios (e.g., Red:100, Green:60, Blue:100) to achieve the desired white temperature (cool or warm).
Q: What is the recommended reflow profile?
A: We recommend a standard lead-free reflow profile with a peak temperature not exceeding 260°C and a maximum time above 217°C (TAL) of 60 seconds. A pre-heat temperature between 150°C-180°C helps prevent thermal shock to the component.
