# RGB LED, 10mm, common cathode

> RGB LED, 10mm, with frosted glass for uniform light diffusion, common cathode, 4 pins. The long pin connects to GND, the other three to the signal for Red, Green, Blue. Voltage on the RED pin: 2VDC, on GREEN and BLUE: 3.2VDC. Can be used with Arduino and other development boards for colour mixing; series resistors are required.

- Page: https://sigmanortec.ro/en/rgb-led-10mm-common-cathode
- Price: 2.23 RON
- Availability: In stock; 1-2 zile
- Reference: 9212 · EAN: 5945363812233
- Category: Electronic components > LEDs, IRs and Optics
- Package (shipping data): 0.001 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

10mm RGB diode with frosted glass for uniform diffusion, ideal with Arduino and other boards for mixing colors through the 3 channels Red, Green, Blue. It has 4 pins and is with common cathode, the long pin connects to GND, and the others to the signal. It works at 2V on red and 3.2V on green and blue.
LED RGB (Red, Green, Blue) "milky" glass color for a uniform light diffusion, which can be used together with Arduino and other development boards to generate the whole range of colors based on the 3 main colors.
The LED is of the Common Cathode type, the long pin being the one that connects to GND, and the rest of the pins are associated with the 3 basic RGB colors and are connected to VCC (signal or voltage).
Important: In case of using the LED together with Arduino, connect resistors in series. The board transmits a 5V signal, which will lead to the burning of the LED and the failure of the development board.
Specifications:
LED diameter: 10mm
Color: RGB
Glass: matte
Pins: 4
Type: Common Cathode
Supply voltage on the RED pin: 2VDC
Supply voltage on the GREEN pin: 3.2VDC
Supply voltage on the BLUE pin: 3.2VDC