Appropriate ferrite mix question
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Martin Flynn
Apr 13, 2025, 8:40:27 AM4/13/25
to sara...@googlegroups.com
Considering adding snap-on ferrite cores to the unshielded Ethernet cabling at ISEC to improve differential and common mode EMI suppression
Seeking suggestions on selecting the most effective mix .
Seeking suggestions on selecting the most effective mix .
Alex P
Apr 14, 2025, 9:43:03 AM4/14/25
to Society of Amateur Radio Astronomers
I tried ... with marginal success Type 61still has slight useful properties at these freqs.
AND it is the "Best" of these
- 33 Material Data Sheet
- 4A3 Material Data Sheet
- 43 Material Data Sheet
- 52 Material Data Sheet
- 61 Material Data Sheet
- 67 Material Data Sheet
- 68 Material Data Sheet
- 73 Material Data Sheet
- 75 Material Data Sheet
- 77 Material Data Sheet
- F Material Data Sheet
- J Material Data Sheet
Alex P
Apr 14, 2025, 9:48:50 AM4/14/25
to Society of Amateur Radio Astronomers
Use a FT-240-61 core and loop lots of turns through the donut as Inductance ~ turns^2
"
61 Material and is designed for inductive applications up to 25 MHz and
also suppresses noise frequencies from 200 MHz to 1000 MHz "
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