# RGB LED 5mm 4-pin Common Cathode, Opaque

> 5mm RGB LED with 4 pins and common cathode, opaque casing for even color mixing. Supply voltage 2.1-3.4VDC per channel, with the common negative on the longest pin. Requires a suitable resistor on each color pin. Suitable for Arduino projects and prototypes needing the full RGB color range from a single component.

- Page: https://sigmanortec.ro/en/rgb-led-5mm-4-pin-common-cathode-opaque
- Price: 1.51 RON
- Availability: In stock; 1-2 zile
- Reference: 22102 · EAN: 5947639905274
- Category: Electronic components > LEDs, IRs and Optics
- Package (shipping data): 0 kg
- Updated: 2026-09-12
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:59 (Europe/Bucharest)

## Description

5mm RGB LED with 4 pins and common cathode, opaque glass for uniform color mixing, ideal for Arduino projects and prototypes where you need the entire RGB palette from a single element. Operates at 2.1-3.4VDC on each channel, common minus is on the longest pin, simple intensity control on each color with suitable resistors.
5mm Diameter Common Cathode RGB LED ideal for Arduino projects
With this LED, you can have the entire RGB color range on a single element.
Specifications:
Supply voltage: 2.1 - 3.4VDC
Glass color: Opaque (milky)
Type: Common cathode (common negative), on the longest pin.
WARNING: Use this LED only with an appropriate resistor on the pins. The LED receives voltage input on the pins dedicated to each color (+), and the negative is common on the longest pin.