LED Series Resistor Calculator and Formula

Farnell's LED series resistor calculator and formula allow you to calculate the proper resistance for your LED devices based on your existing specifications.

LED Series Resistor Calculator

  

LED Series Resistor Formula

R = ((Vs - Vf) / If)

You'll find a full range of To shop the full range of LEDs available at Farnell , visit our Optoelectronics & Displays category.