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How do you choose a potentiometer? Answered

I'm trying to use a potentiometer as a variable resistor does, how do I determine the rating for the Pot?

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user
mathews

Best Answer 8 years ago

What are you using it for? Comparing to another resistance? What is it other resistance?

Or do you have a pot that you need to measure? If so, measure between to two 'end' pins.

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user
jeff-o

8 years ago

Rating, as in power?  You need to calculate the maximum power that will pass through the potentiometer.  You do that my multiplying the maximum voltage by the maximum current you're expecting to flow through the device.