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Your cart is empty. Dimension
Height:5mm/0.196"
Inner Dia:5.5mm/0.2"
Outside Dia:11mm/0.43"
Package Content
100pcs x Toroid Ferrite Core
Product Function
ferrite toroid core can be conveniently clamped on the power cord, signal line, reduce electro-magnetic interference and improve signal integrity and they are reusable.
Mr. Chad Schwartz
2025-08-19 19:27:16
These are obviously pure ferrite. They saturate easily at low frq which is expected. They therefore aren't very good for generating flyback voltages but they are very nice chokes and work well for that purpose. Ymmv may vary depending on your application of course but I have been happy with these. Thank you for a clean toroid that met expectations nicely!
Doug
2025-08-17 18:40:49
Arrived timely and in tact. Seem to be decent quality though I have not used one yet. Do not appear to have anything wrong with them.
ofenmann
2025-07-30 11:27:48
I made a few 'chokes' and transformers with these cores and they worked well. The only bad thing is there are too many! haha
Invader Kendall
2025-06-25 12:05:27
They're all the same size, have strong enamel, and are made of ferrite. Dope.
WILLIAM BONIN
2025-04-12 17:19:24
Seems to work good for RF.
Michael Me
2025-03-22 14:31:52
these are SMALL, wire at AWG 14 is not going to wrap more than a few times. I used insulated 23 AWG stands pulled from Cat6e cables and they worked pretty well. The magnetic permeability is somewhere around 2400 from what I tested. If you are looking to make very small uH inductors one warp of wire on these will be excessive. IF I had any real complaint it would be the lack of advertised magnetic permeability. Had several broken in the package, if your postal workers are rough it might be a problem.
R. Scaffidi
2025-03-20 17:40:34
I used these to make a coax isolator. I used RG400 and 48 of these beads. This is similar to a MFJ 915. Huge cost savings.
ElSea
2025-01-23 14:24:37
Ordering these was the best mistake I ever made.
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