Re: Ferrite Sleeving

2003-09-15 Thread Cortland Richmond

Derek Walton wrote:

 I'm looking for sources of flexible Ferrite sleeving. Can anyone help?


EMC Eupen is still selling it, I think, and CAPCON has already been
recommended to you.

I've looked at both of their products, and ended up not using them.  The
problem I have with ferrite impregnated sleeving (beside cost) is that it's
not really flexible, and it isn't all that durable, either.  When
sufficient ferrite powder is added to an insulating binder, it makes for a
friable material that crumbles easily when flexed, and with age, as
plasticizers migrate. If it's made flexible and durable, there's not enough
ferrite in it to help. This all can be managed if you get cables whose
ferrite is part of an internal layer; it may crumble, but it can't get out.
Such cables are being marketed. But ferrite sleeving on the outside is a
bit of a headache.

That's my opinion, anyway


Cortland


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RE: Ferrite Sleeving

2003-09-15 Thread Mark Keefe
Try Capcon International Inc. http://www.capconemi.com/


From: GARY MCINTURFF [mailto:mcinturff3...@msn.com]
Sent: Monday, September 15, 2003 12:47 PM
To: Chris Maxwell; lfresea...@aol.com; emc-p...@ieee.org
Subject: Re: Ferrite Sleeving


If I remember correctly from years ago -its fairly brittle stuff and
problematic in areas that experience much shock or vibration. 
Gary

- Original Message - 
From: Chris Maxwell mailto:chris.maxw...@nettest.com  
To: lfresea...@aol.com ; emc-p...@ieee.org 
Sent: Monday, September 15, 2003 7:12 AM
Subject: RE: Ferrite Sleeving


I have a sample of a flexible ferrite material from a company called Tokin.

It is not a sleeving; but it is a thin (about .040) sheet, flexible enough to
be rolled into a tubular shape.  Personally, I haven't found an application
for this stuff. 

Chris Maxwell | Design Engineer - Instruments Group
email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024

NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA
web www.nettest.com | tel +1 315 797 4449 | 




 -Original Message-
 From: lfresea...@aol.com [SMTP:lfresea...@aol.com]
 Sent: Friday, September 12, 2003 3:29 PM
 To: emc-p...@ieee.org
 Subject: Ferrite Sleeving
 
 Hi,
 
 I'm looking for sources of flexible Ferrite sleeving. Can anyone help?
 
 Thanks,
 
 Derek Walton



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RE: Ferrite Sleeving

2003-09-15 Thread Price, Ed
 


From: GARY MCINTURFF [mailto:mcinturff3...@msn.com]
Sent: Monday, September 15, 2003 9:47 AM
To: Chris Maxwell; lfresea...@aol.com; emc-p...@ieee.org
Subject: Re: Ferrite Sleeving


If I remember correctly from years ago -its fairly brittle stuff and
problematic in areas that experience much shock or vibration. 
Gary

- Original Message - 
From: Chris Maxwell mailto:chris.maxw...@nettest.com  
To: lfresea...@aol.com ; emc-p...@ieee.org 
Sent: Monday, September 15, 2003 7:12 AM
Subject: RE: Ferrite Sleeving


I have a sample of a flexible ferrite material from a company called Tokin.

It is not a sleeving; but it is a thin (about .040) sheet, flexible enough to
be rolled into a tubular shape.  Personally, I haven't found an application
for this stuff. 

Chris Maxwell | Design Engineer - Instruments Group
email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024

NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA
web www.nettest.com | tel +1 315 797 4449 | 

 
 

 
 
Chris:
 
I think that material is supposed to be cut to size and applied as an RF
absorber, in places like the top of an IC chip, or maybe a circuit cavity. You
would have to glue or epoxy it in place.
 
Ed
 

Ed Price 
ed.pr...@cubic.com WB6WSN 
NARTE Certified EMC Engineer  Technician 
Electromagnetic Compatibility Lab 
Cubic Defense Systems 
San Diego, CA  USA 
858-505-2780  (Voice) 
858-505-1583  (Fax) 
Military  Avionics EMC Is Our Specialty  




Re: Ferrite Sleeving

2003-09-15 Thread GARY MCINTURFF
If I remember correctly from years ago -its fairly brittle stuff and
problematic in areas that experience much shock or vibration. 
Gary

- Original Message - 
From: Chris Maxwell mailto:chris.maxw...@nettest.com  
To: lfresea...@aol.com ; emc-p...@ieee.org 
Sent: Monday, September 15, 2003 7:12 AM
Subject: RE: Ferrite Sleeving


I have a sample of a flexible ferrite material from a company called Tokin.

It is not a sleeving; but it is a thin (about .040) sheet, flexible enough to
be rolled into a tubular shape.  Personally, I haven't found an application
for this stuff. 

Chris Maxwell | Design Engineer - Instruments Group
email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024

NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA
web www.nettest.com | tel +1 315 797 4449 | 




 -Original Message-
 From: lfresea...@aol.com [SMTP:lfresea...@aol.com]
 Sent: Friday, September 12, 2003 3:29 PM
 To: emc-p...@ieee.org
 Subject: Ferrite Sleeving
 
 Hi,
 
 I'm looking for sources of flexible Ferrite sleeving. Can anyone help?
 
 Thanks,
 
 Derek Walton



This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

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RE: Ferrite Sleeving

2003-09-15 Thread Chris Maxwell

I have a sample of a flexible ferrite material from a company called Tokin.

It is not a sleeving; but it is a thin (about .040) sheet, flexible enough to
be rolled into a tubular shape.  Personally, I haven't found an application
for this stuff. 

Chris Maxwell | Design Engineer - Instruments Group
email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024

NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA
web www.nettest.com | tel +1 315 797 4449 | 




 -Original Message-
 From: lfresea...@aol.com [SMTP:lfresea...@aol.com]
 Sent: Friday, September 12, 2003 3:29 PM
 To:   emc-p...@ieee.org
 Subject:  Ferrite Sleeving
 
 Hi,
 
 I'm looking for sources of flexible Ferrite sleeving. Can anyone help?
 
 Thanks,
 
 Derek Walton



This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

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RE: Ferrite Sleeving

2003-09-12 Thread marko.radoji...@nokia.com
Did you try Zippertubing?  http://www.zippertubing.com/index2.htm
 
Cheers,
Marko
 
 

From: ext lfresea...@aol.com [mailto:lfresea...@aol.com]
Sent: Friday, September 12, 2003 12:29 PM
To: emc-p...@ieee.org
Subject: Ferrite Sleeving


Hi,

I'm looking for sources of flexible Ferrite sleeving. Can anyone help?

Thanks,

Derek Walton