Looking for shielded choke 10uH 10A or more OFC

[merlin el mago]

As tittle said I'm looking for shielded choke 10uH 10A or more OFC axial not SMD not radial.

TIA

 

[merlin el mago]

Nobody knows where can I get?

 

[bucks bunny]

Yes

 

[merlin el mago]

That's all folks.

 

[Mark Tillotson]

Well I know you don't need OFC unless you are vacuum sputtering or building high temperature heat exchangers...

 

[merlin el mago]

Sure I don't need it but I like it because I use as filter

 

[bucks bunny]

 

[Dave R]

are you looking for 10 micro-Henry (10^-6) or 10 milli-Henry (10^-3)?

 

[merlin el mago]

10 micro henries, thanks Dave.

 

[Dave R]

Hammond 1537E is 10uH, 20A (dc), and axial, but not shielded. No info on oxygen content in copper.

 

[merlin el mago]

Thanks but due to RFI environment must be minimum shielded, now I have 10uH 10A shielded, I'm looking for OFC.

 

[Mark Tillotson]

Why do you think OFC is any advantage?

 

[merlin el mago]

OFC it’s only relative for my subjective taste, I guess copper oxidizes with oxigen but also isn't so important if the copper wire it's varnished, believe me it's only for my peace of mind nothing can live without....

 

[bucks bunny]

Leaving any physical or chemical basic discussion aside - you will hardly find such inductor off the shelves readily made. Maybe you are the only one on this hole planet who calls for that.

 

[merlin el mago]

I saw Sagami OFC shielded used in Starkrimson modules from Orcharaudio, so I know that exist but the problem is that I don't know where to buy...

https://orchardaudio.com/shop/starkrimson_150w_amp_module/

 

[bucks bunny]

How can you tell the coil you saw was OFC?

 

[merlin el mago]

Look

 

[bucks bunny]

You will find this type of inductors for class-D discontinued: https://www.sagami-elec.co.jp/en/product/discon.php
Whether or not the marking "OFC" was related to oxygen-free copper - who knows?

 

[bucks bunny]

I found an old data sheet, that confirms that these inductors were OFC wound indeed!
Oh well - theses Japanese Hi-End-Audio freaks...

 

[Mark Tillotson]

The properties of the ferrite and its magnetic history will probably dominate the properties of the coil, be it Al, Cu or OFC. Did you know many ferrite materials are irreversably affected by bringing a permanent magnet up to it for instance?

Worry about the core material, not the conductor, with inductors.