LED Series Resistor Calculator
A Resistor is required to drive one or more series-connected LEDs from a voltage source at a specified current level. This Calculator calculates the value of the Series Resistor that is used with an LED to limit the current drawn by the LED
Enter LED Source Voltage, Forward Voltage and LED Forward Current to calculate value of the series resistor that is used with an LED to limit the current drawn by the LED.
Every electronic device has a maximum current that it can handle safely, LED (Light Emitting Diode) is no exception. The resistor in series with the LED limits the current that is passed through the LED.
Below is a table for LED Forward voltage depending in the color it is emitting.
