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

FB102-43 - 1/2" ID/12.8mm, RFI Range 25-300 MHz, Bulk Pack of 23

Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHz

Product Details

MPN: FB102-43

Initial Permeability (@ 10KHz): 850

Material: NiZn

Max cable size - in/mm: .5/12.6

OD (A) - in/mm: 1.02/25.9

ID (B) - in/mm: .505/12.8

Length (C) - in/mm: 1.125/28.6

Z (ohms per bead - single turn 1 MHz): 15

Z (ohms per bead - single turn 5 MHz): 60

Z (ohms per bead - single turn 10 MHz): 91

Z (ohms per bead - single turn 25 MHz): 145

Z (ohms per bead - single turn 100 MHz): 235

Z ohms (per bead - single turn 250 MHz): 275

Case/Box lot size: 212

Ferrite Slip On Bead, ID = .505in/12.8mm, Mix 43, Bulk Pack of 23 - very useful for slip on chokes for RG-213 size coax - use 5, 10 or 15

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).