themikestar
New Member
i am trying to run an led from a car, i obviously need a resistor to do this, at the moment i am using a 470ohm 1/4 watts resitor (this is running it about half it's brightness, this is bright enough), but i want to use a smd resistor. The problem is the LED needs atleast a 1/4 watt 470ohm resistor, the biggest smd resitor i can find is .125watt in australia. If i want to run the led at full brightness i need a 1/2 watt 220ohm resitor.
led specs- 3.8v 50ma
power source - car , around 13.5v
the question is, can i put two smd resitors in parallel so they will share the current ?,
i'm guessing if i wanted to run the led at full brightness i might have to put 4 in parallel, is this correct ?.
what would the values of the resistors have to be ?
led specs- 3.8v 50ma
power source - car , around 13.5v
the question is, can i put two smd resitors in parallel so they will share the current ?,
i'm guessing if i wanted to run the led at full brightness i might have to put 4 in parallel, is this correct ?.
what would the values of the resistors have to be ?