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

FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 80 Piece Bulk Pack

SKU FB56-31-80
$110.00
80
$1.38
Bulk pricing available for quantities of 2 units or more
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FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 80 Piece Bulk Pack
Product Details
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: .25/6.3
OD (A) - in/mm: .562/14/3
ID (B) - in/mm: .25/6.4
Length (C) - in/mm: 1.125/28.6
Z (ohms per bead - single turn 1 MHz): 35
Z (ohms per bead - single turn 5 MHz): 91
Z (ohms per bead - single turn 10 MHz): 119
Z (ohms per bead - single turn 25 MHz): 181
Z (ohms per bead - single turn 100 MHz): 300
Z ohms (per bead - single turn 250 MHz): 280

Ferrite Slip On Bead - ID = .25 in/6.4mm - Mix 31, 80 pieces in carry box

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

20131210 114716 300x180 - Ferrite Ring Combo Pack

AC Cable on F-240 Toroid – 7 turns

20150125 103738 300x168 - Ferrite Ring Combo Pack

DC Cable on F240 – 4 turns

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

20131222 125533 300x180 - Ferrite Ring Combo Pack

RG58 12 turns on FT240

20131210 115137 300x180 - Ferrite Ring Combo Pack

Ethernet Cable on F-240 Toroid – 7 turns

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