Low cost ferrite...

[Klaus Kragelund]

Hey

As always, I am looking for saving cost (who isn\'t)

I\'m doing a new power design, and looking for cheap ferrite. Run of the mill, N87, PC95 etc, nothing fancy. In this case it\'s a planar design, but it really doesn\'t matter

I would normally use Epcos/Ferroxcube, Magnetics, Fair-rite. Well reputed suppliers, but with a margin

There is cheaper alternatives, just flinging names: Hua Jung, DMEGC, Fuantronics, NCD, Acme, Cosmo

Anybody been down this road, found a cheap, reliable source?

Cheers

Klaus

 

[Piotr Wyderski]

Klaus Kragelund wrote:

> As always, I am looking for saving cost (who isn\'t)

Isn\'t the answer 3C90 in the past and 3C94 now?

> I\'m doing a new power design, and looking for cheap ferrite. Run of the mill, N87, PC95 etc, nothing fancy.

I would say that 3C95 is a high-performance material, hence counts as
fancy. But it depends on your reference frame, for some people 8C11
wouldn\'t be too fancy.

> Anybody been down this road, found a cheap, reliable source?

There is plenty of cheap PC40 on AliExpress. Ferritish to the point of
being boring. It works. Nothing to see here, move along.

Best regards, Piotr

 

[legg]

On Mon, 19 Oct 2020 16:02:12 -0700 (PDT), Klaus Kragelund
<klauskvik@hotmail.com> wrote:

Hey

As always, I am looking for saving cost (who isn\'t)

I\'m doing a new power design, and looking for cheap ferrite. Run of the mill, N87, PC95 etc, nothing fancy. In this case it\'s a planar design, but it really doesn\'t matter

I would normally use Epcos/Ferroxcube, Magnetics, Fair-rite. Well reputed suppliers, but with a margin

There is cheaper alternatives, just flinging names: Hua Jung, DMEGC, Fuantronics, NCD, Acme, Cosmo

Anybody been down this road, found a cheap, reliable source?

Cheers

Klaus

You want cheap, you\'re better off going with the flow.

Use commodity core shapes and get the thing made off-shore.
Give the vendor multiple core material options, including
Cosmo, Acme,Samwha,YTE and the usual western brands of
roughly equivalent grade - it doesn\'t have to be a lousy one.

Quote insulation by UL category and class, not by mfr name.
Wire by NEMA/IEC standard and temperature index, to match
your insulation system.

I\'ve had parts quoted for pennies, assembled, probably just
because the material requirements could be met by stock on-hand.

Small vendors in the \'west\' don\'t stand a chance in the
costing game.

RL