PIN A · Anode · long lead
Anode (+)A
Function
The longer lead. Conventional current enters here when the LED is forward biased.
How to connect
Connect to the supply or a microcontroller pin through the series resistor.
Electrical note
Forward voltage at 20 mA: 1.85 V red, 2.2 V green, 2.0 V yellow, 3.3 V blue and white (typical).