Quick question
what would an appropriate resistor W rating be for use in a standard line level (1.5 - 2.5 V) output be?
And if a higher Wattage is used than necessary, does this compromise the resistors rated values?
cheers
what would an appropriate resistor W rating be for use in a standard line level (1.5 - 2.5 V) output be?
And if a higher Wattage is used than necessary, does this compromise the resistors rated values?
cheers
That's a pretty vague question, not enough info. What's the resistor's value, what's the resistor for?
Mike
Mike
Ok true
A 1M metal film resistor to be used as a "ground leak resistor" in the output stage of a cd player with a dac output of 1.6v....
Dac - 1uf cap - 1m resistor - RCA - 50k pre
Using a higher wattage value is a good thing, until you get into the inductive resistors (wire wound) but those are usually above 5 watts.
OK...Ohm's Law is your friend. P=Vsqr/R.
So taking the 2.5 volts maximum you specified: (2.5sqr)=6.25/1M=.00625mW, so power dissipated in the resistor is negligible.
Mike
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