Electrical schoolwork...

Kurt Deschler desch at alum.wpi.edu
Tue Feb 10 02:40:01 EST 2004

Most of the panel mount LEDS use 1/4W resistors and seem to hold up fine.


> When selecting the resistor, be sure that its rated power is high enough
> given the voltage and current.  The formula is:
> 	P = V * I
> Or 10V * 0.02A = 0.2W.  You should use a resistor at least double (if
> not higher) that wattage to ensure that it won't burn up.  In this case,
> a 0.5 resistor is marginally ok, but I would feel better with a 1W
> resistor.
> -Ti

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