Discussion about acquiring high permeability ferrites for plasma experiments

Author Topic: Discussion about acquiring high permeability ferrites for plasma experiments (Read 100 times)

Chet K	Discussion about acquiring high permeability ferrites for plasma experiments « on: 2026-08-14, 13:49:21 »
Group: Ambassador Hero Member Posts: 4749	Here some suggestions for sourcing such materials . **Topic under construction while information is added on some suggested vendors.••

Peterae

Re: Discussion about acquiring high permeability ferrites for plasma experiments « Reply #1 on: 2026-08-15, 19:44:22 »

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Ok passing a message on from Mark via Chet

You can see model FN200 has a permeability of 2000 and its spells out the other characteristics see attached image.

this is a webpage you can use to send enquiries to over 300 manufacturers and the drawing you sent would be good to show them
https://www.made-in-china.com/quality-china-product/productSearch?word=ferrite+rod+u2000&bv_id=1jvkn8ouba5e&pbv_id=
They all speak great english
My people in China do not specialize in Magnetic materials but are willing to help one to identify the supplier that meets your needs
There are thousands of suppliers not just 300

Discussion about acquiring high permeability ferrites for plasma experiments

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« Last Edit: Today at 00:13:53 by Chet K »

Chet K

Re: Discussion about acquiring high permeability ferrites for plasma experiments « Reply #2 on: Today at 00:05:25 »

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Peter
thanks for posting that information from Mark Dansie ,
Below is screenshot of the spec sheet/information (CMD5005) from one vendor I contacted at Verpies suggestion in US

So CMD5005 are the specs we are aiming for as we find sources in Marks links !
Here the complete spec sheet on one alternative ferrite .

Page 04 has the overview of their ferrites

Page 15 has the specifics on this FN200 ferrite ( mentioned in previous post.)

https://ferrite.ru/upload/iblock/056/zeeewjiglt6szh3gb20r2tw16tje8a16/New%20Catalog%20of%20Careful.pdf

Respectfully
Chet K
PS
these materials are for the spider core experiments which Itsu has started to build and we need some high permeability ferrite components to complete .
A dedicated thread for this will be hosted in itsu’s bench.

httpsmagneticsgroup.comwp-contentuploads201909CMD5005-ISO-WEB-DATA.pdf.png

Discussion about acquiring high permeability ferrites for plasma experiments

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Verpies

Re: Discussion about acquiring high permeability ferrites for plasma experiments « Reply #3 on: Today at 05:33:45 »

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Quote from: Chet K on Today at 00:05:25

...and we need some high permeability ferrite components to complete .

High permeability is desirable but so is the lack of degradation of this permeability at higher frequencies.
Also, in order to carve out a monolithic spider shape without air-gaps requires a huge chunk of ferrite. The maximum manufactured chunk size (before they cut it up) is an information that only the OEMs know and it is very hard to come by.