Do these reduce emf radiation or only emi? would like to put on monitor and computer adapater to reduce rf radiation.

I use these torroids on every wire connected to my ham radio to prevent spurrerus RFI interfering with the signal.

Are there any data sheets for these cores? I'd like to kniow the specs on these.

As I have recently found out through my mentors that the ferrite composite is not known and it appears it's not always the same during their continual manufacturing process over time. They have recommended and I would agree to go to a place like Palomar where you know exactly which ferrite material you're getting for your frequency needs

If I put one of these on every lead to appliances that makes a spark (mixer, crock pot thermostat) will it stop my Arc fault breakers from tripping?

No it will not. if you are having arc fault breakers tripping you have a problem that should be looked into by a liscensed electrician. more than likely there are loose connections in your recepticles or it could be your appliances. arc faults in your recepticles will get worse with time and could cause damage or even set your house on fire.

What is the FerRite mix on these 31,43,61 ???

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Tamicy 60 Pieces Clip-on Ferrite Ring Core RFI EMI Noise Suppressor Cable Clip for 3mm/ 5mm/ 7mm/ 9mm/ 13mm Diameter/Video Cable Power Cord (Black)

Product ID: 222830791

📏Fits 3-13mm cables

🔢60-piece versatile set

🛡️Ni-Zn ferrite noise suppression

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Description

🔇 Silence the static, amplify your focus.

TRUSTED BY TECH PROS - Highly rated with 4.6 stars and proven performance verified by NanoVNA frequency tests from 3.5 MHz to 56 MHz.
PRO GRADE EMI SHIELDING - Ni-Zn ferrite cores engineered to block electromagnetic interference and RFI noise effectively.
UNIVERSAL COMPATIBILITY - Perfect for USB, power cords, coaxial, audio, video, and network cables—keep your workspace interference-free.
ALL IN ONE CABLE DEFENSE - 60 clips spanning 5 sizes to fit every cable from 3mm to 13mm diameter.
EFFORTLESS SNAP ON INSTALLATION - Elastic clip fastener design lets you secure or remove clips in seconds—no tools needed.

This 60-piece clip-on ferrite ring core set offers professional-grade EMI and RFI noise suppression for cables ranging from 3mm to 13mm diameter. Featuring Ni-Zn ferrite material and an easy snap-on design, these clips reduce interference on power, USB, audio, video, and network cables. Trusted by tech enthusiasts and rated 4.6 stars, they deliver measurable noise reduction across 3.5 to 56 MHz frequency ranges.

Specifications

ASIN	B08BPHCXR3
Best Sellers Rank	#8,242 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Electronic Ferrites
Customer Reviews	4.6 4.6 out of 5 stars (1,125)
Date First Available	June 23, 2020
Item Weight	1.76 pounds
Item model number	0822
Package Dimensions	6.73 x 5.16 x 1.46 inches

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