Ferrite Ring Combo Pack

The Ferrite Ring Combo Pack is a convenient solution for troubleshooting RFI/EMI from unknown frequencies or multiple frequencies that require multiple suppression mixes. Included in this combo pack are ten 2.4″ OD/1.4″ ID ring toroids as follows:

Mix 75 effective from .15-10 MHz including AM Broadcast band – quantity: 3

Mix 31 effective from 1-300 MHz for general purpose – quantity: 4

Mix 61 effective from 200-2000 MHz for cell phone, WIFI, HDTV, Cable TV interference – quantity: 3

442300382 - Ferrite Ring Combo Pack

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FSB31-1/4, ID=1/4"/6.3mm, RFI Range 1-300 MHz, Bulk lot of 25 pieces

Store/Ferrite Core Products/Mix 31/Snap On - Mix 31 - RFI Range 1-300 MHz

Product Details

Initial Permeability (@ 10KHz): 1500

Material: MnZn

Max cable size - in/mm: .25/6.3

OD (A) - in/mm: .788/20

ID (B) - in/mm: .26/6.6

Length (C) - in/mm: 1.55/3.94

Z (ohms per bead - single turn 1 MHz): 28

Z (ohms per bead - single turn 5 MHz): 83

Z (ohms per bead - single turn 10 MHz): 105

Z (ohms per bead - single turn 25 MHz): 180

Z (ohms per bead - single turn 100 MHz): 310

Z ohms (per bead - single turn 250 MHz): 240

Ferrite Snap On, ID = .26 in/6.6mm, Mix 31, bulk lot of 25 pieces

fit RG8X, 58, 58, 6, audio, video, ethernet, small AC/DC cables and muany more with up to 1/4" outside diameter cable.

The ring toroids are useful for AC/DC common mode choking with multiple turns as shown below

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AC Cable on F-240 Toroid – 7 turns

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DC Cable on F240 – 4 turns

The ring toroids can also be used on coax or signal lines as shown below:

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RG58 12 turns on FT240

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Ethernet Cable on F-240 Toroid – 7 turns

For RFI/EMI wrap as many turns as possible for higher choking (under 30 mHz).