EMI Line filter choke diy design

[powvex]

I want to build line filter choke with UF ferrite core, with size 10.5 core, 6mH and 2 AMP, something like these:
https://www.alibaba.com/product-detail/UF-UU9-8-10-5-type_542700372.html

but I dont know the formula or any info about wire sizes, turns, ...

Any advise appreciated.

[T3sl4co1l]

Why not just buy one..?

And, do you even know that you need one, is this just something to do or is it a replacement, or something?

You need the A_L of the core.  L = A_L * N^2, or N = sqrt(L / A_L).

Or if you don't have that, then A_L = mu_r mu_0 Ae / le, where mu_r is the relative permeability, mu_0 is the permeability of free space, Ae is the effective core cross sectional area and le is the effective magnetic path length around the core.  mu_r should be very high, and the core pieces should fit very tightly to leave no air gap.

2 amperes will be fine with 24AWG wire or thereabouts.

Tim

[powvex]

Unfortunately I couldnt find this one I need for, in order to buy.
I need to build it myself.