Well I know you don't need OFC unless you are vacuum sputtering or building high temperature heat exchangers...
Hammond 1537E is 10uH, 20A (dc), and axial, but not shielded. No info on oxygen content in copper.
Thanks but due to RFI environment must be minimum shielded, now I have 10uH 10A shielded, I'm looking for OFC.
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....
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.
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/
https://orchardaudio.com/shop/starkrimson_150w_amp_module/
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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?
Whether or not the marking "OFC" was related to oxygen-free copper - who knows?
I found an old data sheet, that confirms that these inductors were OFC wound indeed!
Oh well - theses Japanese Hi-End-Audio freaks...
Oh well - theses Japanese Hi-End-Audio freaks...
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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.
Worry about the core material, not the conductor, with inductors.