Two BOURNS potentiometers, 2k, 200ohms, in series....

Thread Starter

Hamlet

Joined Jun 10, 2015
553
So, if I have two BOURNS potentiometers, 2k, 200ohms, in series....

Both 100ppm/C, then:

Would the ppm double, halve, or remain the same for the combined unit?

(this is for a course/fine adjustment)
 

Ian0

Joined Aug 7, 2020
13,097
If they are being used as potentiometers, then the temperature coefficient will have no effect whatsoever, unless the output current is large enough to heat up one half of the track and not the other.
Only if they are being used as rheostats will the temperature coeffiecient make any difference.
 
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