5mm Common Anode Diffused RGB LED -- 4-Pin Tri-Color Red Green Blue LED Diodes (5/10/25 Pieces)
These 5mm diffused-lens RGB LEDs combine red, green, and blue LEDs into a single 4-pin package, producing smooth, evenly blended colors across a wide 120° viewing angle. The frosted diffused lens scatters light for a soft glow that's easy on the eyes -- perfect for mood lighting, decorative displays, and any project where the LED is directly visible. Common anode configuration with 5, 10 and 25 pieces per pack.
💡 Common Anode LED: The longest pin is the shared positive (+) connection. Each color turns on when its cathode pin is pulled LOW through a current-limiting resistor. PWM logic is inverted -- 0 = full brightness, 255 = off.
⚡ Key Features
- Three Colors in One -- Red, green, and blue LEDs in a single 5mm package
- Common Anode Configuration -- Shared positive pin for simplified wiring
- Diffused Lens -- Frosted lens for smooth, even color blending
- Wide Viewing Angle -- 120° for broad, uniform light distribution
- Full Color Mixing -- Combine RGB values via PWM to create any color
- High Brightness -- Up to 5000 mcd (green channel)
- Standard 5mm (T1-3/4) Package -- Fits standard LED holders and breadboards
- Low Power -- 20mA per color channel
- Arduino & Microcontroller Compatible -- Works with any platform supporting PWM
📐 Specifications
| Package Size |
5mm (T1-3/4) |
| Lens Type |
Diffused (frosted) |
| Configuration |
Common Anode |
| Number of Pins |
4 |
| Forward Voltage -- Red |
2.25V |
| Forward Voltage -- Green |
3.5V |
| Forward Voltage -- Blue |
3.5V |
| Wavelength -- Red |
630–640 nm |
| Wavelength -- Green |
515–525 nm |
| Wavelength -- Blue |
465–475 nm |
| Luminous Intensity -- Red |
1000–1200 mcd |
| Luminous Intensity -- Green |
3000–5000 mcd |
| Luminous Intensity -- Blue |
2000–3000 mcd |
| Viewing Angle |
120° |
| Forward Current (per channel) |
20mA |
| Reverse Current |
100µA max |
📌 Pinout
The LED has 4 pins. The longest pin is the common anode (+V). With the LED facing you (lens on top) and the flat side of the lens to the right:
| Pin 1 -- Far left |
Red cathode (−) |
| Pin 2 -- Center-left (longest) |
Common Anode (+V) |
| Pin 3 -- Center-right |
Green cathode (−) |
| Pin 4 -- Far right |
Blue cathode (−) |
📦 What's in the Box
- 5/10/25x 5mm Common Anode Diffused RGB LED Diodes - package quantity selected above
Current-limiting resistors are not included. Recommended values: 150Ω (red), 100Ω (green), 100Ω (blue) for a 5V supply at 20mA.
🛒 What You'll Need
- Current-limiting resistors -- 150Ω for red, 100Ω for green and blue (or 220Ω on all channels for simplicity)
- Microcontroller with PWM -- Arduino, ESP32, Raspberry Pi Pico, or similar
- Breadboard and jumper wires -- For prototyping connections
🔌 Compatible With
- Arduino (Uno, Mega, Nano, etc.)
- ESP32 / ESP8266
- Raspberry Pi Pico
- STM32 and other microcontrollers with PWM output
- Any 3.3V–5V digital logic system (5V recommended for full brightness)
🎯 Typical Applications
- Mood and ambient lighting
- Decorative LED displays and art installations
- Status indicators with smooth color transitions
- Night lights and color-changing lamps
- Wearable electronics and costumes
- Educational projects for learning PWM and color theory
- Prototyping color feedback systems
💡 Tip: Diffused LEDs blend colors much more smoothly than clear LEDs -- they're the better choice when the LED is directly visible. The green channel is significantly brighter than red, so reduce green/blue PWM values when mixing for balanced white or pastel colors.
⚠️ Important Notes
- Always use current-limiting resistors -- driving an LED without one will destroy it.
- Do not exceed 20mA forward current per color channel.
- Observe correct polarity -- the common anode pin connects to positive voltage, not ground.
- These LEDs are not waterproof.
- On 3.3V systems, green and blue channels (Vf = 3.5V) may not light reliably -- a 5V supply is recommended for full-color operation.
🏪 About Envistia Mall
Envistia Mall is a US-based electronics retailer specializing in development boards, sensors, modules, and components for makers, engineers, and educators. We ship from the United States with fast handling times. Product documentation and technical support are available at our dedicated support site.
📦 Fast Free US Shipping | 🔄 Hassle-Free Returns | 📧 Responsive Customer Support
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