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Article #2018

Re: What is a ferite bead?

#2018
From: Iskandar Taib
Date: Thu, 07 Jan 1993 17:10
29 lines
1902 bytes
In article <1993Jan7.010850.4044@sequent.com> patch@sequent.com (Pat Chewning) writes:
>In article <1993Jan6.205946.10039@aio.jsc.nasa.gov> careyb@dallas.jsc.nasa.gov (Brian Carey 283-4181) writes:

>A ferite bead is a donut shaped bead made from ferite.  Ferite is a compound
>of iron and carbon (FeC3 I think).  When wires are wound around the ferite
>bead (through the center, around outside, and back through center), the bead
>increases the inductance of the wire and is used to supress higher
>frequencies on the wire.  In this example the ferite bead is being used as
>an RF choke to reduce the RF noise generated and received on the servo
>leads.

Hmm.. I thought it was simply sintered iron. Interesting to find out
what this stuff is after all this while.

>I obtained my ferite beads at Norvak Electronics, a local electronic parts
>store.  They might be available from Radio Shack and other electronic part
>stores.

How big do these get? I need a toroid about an inch and a half in 
diameter to make an inductor for a power panel I am building.




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Iskandar Taib                          | The only thing worse than Peach ala
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From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: What is a ferite bead?
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References: <1993Jan6.205946.10039@aio.jsc.nasa.gov> <1993Jan7.010850.4044@sequent.com>
Date: Thu, 7 Jan 1993 17:10:59 GMT
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