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

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

🔇 Silence the static, amplify your focus.

PLUG PLAY NOISE DEFENSE - Easy clip-on design with elastic fastener lets you install powerful EMI/RFI filters in seconds—no tools, no hassle.
VERSATILE CABLE COMPATIBILITY - Ideal for USB, power, coaxial, audio, video, and network cables—protect your entire tech ecosystem effortlessly.
BULK PACK FOR ULTIMATE CONTROL - 60 pieces mean you can silence noise on every cable at home or office—don’t let interference slow your workflow.
CUTTING EDGE NI ZN FERRITE CORE - Advanced ferrite material dramatically reduces electromagnetic interference, keeping your devices running flawlessly.
UNIVERSAL FIT ZERO INTERFERENCE - Five clip sizes cover cables from 3mm to 13mm, ensuring perfect noise suppression for all your essential cords.

Tamicy’s 60-piece clip-on ferrite ring core set offers a comprehensive solution to electromagnetic interference across multiple cable sizes (3mm to 13mm). Featuring Ni-Zn ferrite cores and an easy-to-use elastic clip design, these noise suppressors effectively reduce RFI/EMI on power, USB, audio, video, and network cables, ensuring cleaner signals and uninterrupted device performance.

Reviews

User

Handy assortment of filters.

Almost anyone should have a bag of these noise reduction devices if they have more than one electronic device around. Clamp one around the power cord of the device causing interference and voila! No more interference. Well, sometimes it works that way. The thing about RFI (Radio Frequency Interference) is that it is sneaky and can get out of its container in lots of different ways, not just the power cord. It usually takes a bit more effort to suppress it than that. But if the RFI emitter was otherwise well designed, than the power cord fix will sometimes help. Sometimes putting the device into a metal container with a tight fitting lid (or its equivalent, also known as a Faraday cage) might be the only way to get the noise suppressed but only if the container is well grounded. The funny thing is that this container could absorb the RFI within it and re-radiate it from the outside depending on a lot of conditions. So , to sum up, these ferrites might work, and if they don't, well, they're cheap so you haven't lost much.

26.06.2026

User

Poco que compartir son cables de muy buena calidad - es todo.-.-.-

1.10.2022

User

solved the rf noise problem

used on the AC power lines to LED lights

26.03.2023

User

Ótimo

Chegou certinhos sem problemas

1.05.2026

User

Match description and quality is extra good!

I’m extremely satisfied with the Tamicy 60 Pieces Clip-on Ferrite Ring Core Kit. This set is a fantastic value, especially for anyone dealing with RFI/EMI issues in a ham radio, audio, or general electronics setup.The variety of sizes (3mm, 5mm, 7mm, and 9mm) makes it easy to find the right fit for different cables, from small USB cords to thicker power lines. The clip-on design is super convenient—no need to disconnect or rewire anything, just snap them on and you’re good to go.I immediately noticed a reduction in interference and noise, particularly on my radio equipment and computer peripherals. The build quality feels solid, and the clips stay securely closed without slipping.Overall, this is a must-have kit for anyone looking to clean up signal noise efficiently and affordably. Highly recommended!

18.03.2026

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Asin	B08BPHCXR3
Best Sellers Rank	47 in Car Amplifier Noise Filters
Guaranteed Software Updates Until	unknown
Item Model Number	0822
Manufacturer	Tamicy
Package Dimensions	17.09 x 13.11 x 3.71 cm; 798 g

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)

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Common Questions