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Re: LF: New cores from Micrometals

To: [email protected]
Subject: Re: LF: New cores from Micrometals
From: "James Moritz" <[email protected]>
Date: Fri, 29 Nov 2002 16:00:42 +0000
In-reply-to: <[email protected]>
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
Dear Andre, LF Group,

At 09:47 29/11/2002 -0500, you wrote:
does anyone know of a table of equivalency between the Philips cores and the Micrometal ones?

The Micrometals cores are iron dust, whilst the Philips cores usually seen in LF use are ferrites, eg. 3C85 etc. Philips (or presumably Ferroxcube now) do produce iron dust materials , designated 1Pxx and 2Pxx according to the 1991 Philips data book I have here. "xx" is the relative permeability of the material; the 1P04, 1P11, 1P30 series seems to be intended for tuned applications, and are probably quite similar to Micrometals materials with similar permeability, while the higher permeability, higher loss 2P materials are intended for noise supression. However, cores in the 1P materials don't seem to be a standard catalogue item.

Cheers, Jim Moritz
73 de M0BMU



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