potentiometer voltage limit

[ascot]

is there a limit on how much voltage you can put through a pot if so how do i calculate it

[tooki]

It’s not something you calculate. You look it up in the datasheet.

[TimFox]

The maximum voltage across a potentiometer is normally limited by the power rating of the potentiometer, which should be quoted.  A 1.0k, 1/2W unit would be limited to 22 V, preferably derated to less than 15 V for a 2:1 power safety factor.
Where things get tricky is if you are using it as a variable resistor, where the power for a given voltage varies with the change in resistance.
By definition, a potentiometer is used as a voltage divider, but there may be current passing through the wiper.

[ascot]

problem with data sheets is coming from amazon they tend to have very little info

[tooki]

Well, it’s not wise to use no-name components for anything involving higher voltages.

If amazon has a part number, google it with “datasheet”.

But also consider moving away from Amazon for electronic components — they tend to not be especially good prices.

[ascot]

would tend to agree having seen one go up in smoke only advantage with amazon is i can pick delivery day