#### slic123

##### Newbie

We are designing an LC filter that will have inductor made of torroid core MS-184125-2 from Micrometals, datasheet.

Nominal current of the filter (and inductor) is 40A, we want to have an inductance of around 70 uH and for that we need 15 turns of wire. When calculating DC saturation from the datasheet at this number of turns and 40A of current it comes out that the permeability will decrease to about 30% and we end up with 22uH inductance.

My question is what will happen if we stack two torroid cores mentioned above regarding the DC saturation. We are going to need less number of turns to get the same inductance (11 instead of 15) but will the cores saturate at the same rate (following the same curve from datasheet)? So no matter the two cores, permeability decrease will be lower only due to less turns needed for the same inductance?

Unfortunately we are not able to test the saturation in our lab.

Thank you in advance!