Working
3mm mixed LEDs combine different colors, such as red, green, and blue, in a single package. The working principle is similar to other LEDs where current flows through a semiconductor material, emitting light. The color emitted is determined by the material's properties, and in mixed LEDs, various chips are combined to emit a broader spectrum of light or multiple colors simultaneously.
Applications
- Used in RGB lighting systems, allowing dynamic color changing.
- Common in indicators, particularly in multi-status signaling systems.
- Popular in displays, such as in digital signage and multimedia systems.
- Used for decorative lighting in home, stage, and event setups.
- Integrated into automotive lighting for colorful effect in dashboards and external lights.
Specifications
- Forward Voltage: Typically 2.0–3.4V (depending on the color mix)
- Forward Current: 20mA (typical)
- Brightness: Varies based on color combination (usually 1000–2000 mcd)
- Color Range: RGB (Red, Green, Blue) or more combinations
- Size: 3mm diameter
Pinout

The 3mm mixed LED has multiple pins corresponding to different color channels (typically three or more). The common configuration is as follows:
- Red Anode (+): Connected to the positive terminal for red color emission.
- Green Anode (+): Connected to the positive terminal for green color emission.
- Blue Anode (+): Connected to the positive terminal for blue color emission.
- Cathode (-): Common cathode, typically connected to ground (GND).