Toroid Inductor core Identification Needed

I got an inductor coil core (like the one in attached pic) from an old circuit

I need identification of this core
the size of the core is:
OD=21 mm
ID= 12 mm
Height= 7mm
Thickness= 4mm
color = as in the pic
It is warped by 51 turns of 1mm thick wire

I need to know:

- Is it a Iron powdered core or a Ferrite core

- What are its technical codes (Size, Material, etc.)

- What would be the inductance (mH) of it (with 51turns

- How can I make a 600uH inductor with this core. (number of turns, Awg, Etc)

please suggest me.

Polash

polashd said:

I need to know:

- Is it a Iron powdered core or a Ferrite core No way to know just by looking at it.

- What are its technical codes (Size, Material, etc.) Size? just measure it (you already did).
Material, that is anybodies guess.

- What would be the inductance (mH) of it (with 51turns No way to know

- How can I make a 600uH inductor with this core. (number of turns, Awg, Etc) No way to know

Click to expand...

All you can do is wrap a few turn onto the toroid and measure the inductance.
The inductance of a toroid is usually expressed as L = K.N²
Calculate the value of K and then you can find the number of turns for any inductance you require.

You will have to do this at a number of frequencies to estimate the usefull range of the toroid.


JimB