5mm led problem

i want to make a 5mm white led  series and run it by 5v power supply so i want to use 1 resistor is it possible?????

iceng13 days ago

YES !

Play it safe, assume a 3.2 Forward voltage at 6 ma = .006 Amp ..

5v-3.2v = 1.8v for the resistor = Volts / current = 1.8 / .006 = 300 ohms

Power = V x Amps = 1.8 x .006 = .011 watt, you may use the lowest 1/8 wattage value but a 1/4 Watt 300 ohm resistor will do :-)

CLEDV2.jpg
rickharris14 days ago

What's the specified forward voltage drop ?