LED Resistor
v1
💡
LED Resistor
Calculate the required resistor for an LED. Set supply voltage, forward voltage, and current.
PTT = start calculation
Calculate
Ω
Supply Voltage (V)
5.00
Forward Voltage (V)
2.00
Current (mA)
20
=
Resistor (Ω)
150.00
Power Rating (W)
0.30
PTT = calculate · scroll = adjust input · hold = clear