RGB LED
5 mm RGB LED · common cathode · red 1.9 V, green 2.1 V (pure green ≈ 3 V in many parts), blue 3.0 V · 20 mA per colour

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: 5 mm RGB LED
Pins
- R
- Common − (longest)
- G
- B
Ratings and limits
| Common | cathode |
|---|---|
| V_F | R 1.9 / G 2.1–3.0 / B 3.0 V |
| Current | 20 mA per colour |
How to use it
Three LEDs in one lens: each colour needs its own resistor. PWM each colour to mix any shade.