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

442300435 - Ferrite Ring Combo Pack

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FSB75-1/2, ID=1/2", RFI Range 150Khz-10 MHz, Bulk Pack of 10

Store/Ferrite Core Products/Mix 75/Snap On - Mix 75 - RFI Range 150 KHz-10 MHz

Product Details

Country/Region of Manufacture: USA

Initial Permeability (@ 10KHz): 5000

Material: MnZn

Max cable size - in/mm: .5/12.7

OD (A) - in/mm: 1.14/29

ID (B) - in/mm: .514/13.1

Length (C) - in/mm: 1.14/29

Z (ohms per bead - single turn 200 KHz): 20

Z (ohms per bead - single turn 500 KHz): 58

Z (ohms per bead - single turn 1 MHz): 102

Z (ohms per bead - single turn 2 MHz): 70

Z (ohms per bead - single turn 5 MHz): 50

Ferrite Snap On, ID = .514in/13.1 mm, Mix 75, Bulk pack of 10

Excellent for AC/DC power cables on switching power supplies and data/audio/video cables for AM broadcast RFI suppression.

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).