Led Series Resistor Calculator

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Posted by Dinesh on

This calculator calculates the resistance using supply voltage (vs), voltage drop (vd), forward current (if) values.

Led Series Resistor Calculation

V
V
mA
Ω

Formula:

R = (Vs-Vd) / If

Where,


R = Resistance,
Vs = Supply Voltage,
Vd = Voltage Drop,
If = Forward Current

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