Ferrite Rings

Ferrite rings are toroidal (doughnut) shaped, or cylindrical shaped pieces of ferrite (a ceramic compound).
What do they do?
Ferrite rings help to protect against EMI (electromagnetic interference) and RFI (radio frequency interference). They prevent interference moving to a device or from a device.
How do they work?
Ferrite rings can suppress noise without grounding. Ferrites are able to attract magnetic flux. When a cable is passed through the ring, the magnetic fields created by the cable are concentrated within the ferrite ring. This magnetic energy is converted to heat and the ferrite dissipates this by magnetic loss.
How are they used?
Ferrite rings can often be seen with cables threaded through them. They are common place in electronics to help with noise suppression. The cable can also be wrapped about the ferrite ring numerous times. Ferrite rings can be incorporated into broadband transformers, pulse transformers and common mode chokes.

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Description Price Type Dimensions Application Impedance Material Diameter Height Inner Diameter Outer Diameter Outer Dimensions Inner Dimensions Outer Height Series Aperture Diameter
RS庫存編號 124-1849
製造零件編號742701716
HK$8.208
/個 (每包:10個)
單位
EMI Suppression Toroidal Ferrite 12.7 x 7.9 x 6.35mm Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires - 7 W 380 - 6.35mm 7.9mm 12.7mm - - - - -
RS庫存編號 163-4558
製造零件編號74270191
HK$49.42
Each (In a Tray of 15)
單位
Toroid Core 61 x 35.5 x 20mm EMI Suppression - 4 W 620 20mm 20mm 35.5mm 61mm - - - - -
RS庫存編號 788-0226
製造零件編號74270191
HK$48.24
單位
Toroid Core 61 x 35.5 x 20mm EMI Suppression - 4 W 620 20mm 20mm 35.5mm 61mm - - - - -
RS庫存編號 788-0143
製造零件編號74270097
HK$46.22
單位
Toroid Core 61 x 35.5 x 12.7mm EMI Suppression - 4 W 620 12.7mm 12.7mm 35.5mm 61mm - - - - -
RS庫存編號 163-4540
製造零件編號74270097
HK$59.189
Each (In a Tray of 15)
單位
Toroid Core 61 x 35.5 x 12.7mm EMI Suppression - 4 W 620 12.7mm 12.7mm 35.5mm 61mm - - - - -
RS庫存編號 124-1850
製造零件編號74270117
HK$5.57
/個 (每包:10個)
單位
EMI Suppression Toroidal Ferrite 14 x 10 x 8mm Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires - 3 W 800 - 8mm 10mm 14mm - - - - -
RS庫存編號 788-0193
製造零件編號7427013
HK$13.47
單位
Toroid Core 28 x 16 x 13mm EMI Suppression - 3 W 800 13mm 13mm 16mm 28mm - - - - -
RS庫存編號 788-0200
製造零件編號742701703
HK$24.19
單位
Toroid Core 25 x 15 x 12mm EMI Suppression - 7 W 380 12mm 12mm 15mm 25mm - - - - -
RS庫存編號 163-4552
製造零件編號742701703
HK$12.102
Each (In a Tray of 130)
單位
Toroid Core 25 x 15 x 12mm EMI Suppression - 7 W 380 12mm 12mm 15mm 25mm - - - - -
RS庫存編號 163-4549
製造零件編號7427013
HK$12.061
Each (In a Tray of 50)
單位
Toroid Core 28 x 16 x 13mm EMI Suppression - 3 W 800 13mm 13mm 16mm 28mm - - - - -
RS庫存編號 124-1535
製造零件編號74270053
HK$9.90
/個 (每包:10個)
單位
EMI Suppression Axial Ferrite Bead 16 x 8 x 28.5mm Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires - 3 W 800 - 28.5mm 8mm 16mm - - - - -
RS庫存編號 788-0190
製造零件編號74270121
HK$19.18
單位
Toroid Core 19 x 11.5 x 8mm EMI Suppression - 4 W 620 8mm 8mm 11.5mm 19mm - - - - -
RS庫存編號 163-4548
製造零件編號74270121
HK$17.43
Each (In a Tray of 126)
單位
Toroid Core 19 x 11.5 x 8mm EMI Suppression - 4 W 620 8mm 8mm 11.5mm 19mm - - - - -
RS庫存編號 124-1536
製造零件編號74270052
HK$6.994
/個 (每包:5個)
單位
Axial Ferrite Bead 16 x 8 x 16mm Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires - 3 W 800 - 16mm 8mm 16mm - - - - -
RS庫存編號 124-1851
製造零件編號7427011
HK$10.825
/個 (每包:10個)
單位
EMI Suppression Toroidal Ferrite 16.5 x 8 x 16mm Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires - 4 W 620 - 16mm 8mm 16.5mm - - - - -
RS庫存編號 260-6739
製造零件編號7427015
HK$31.62
單位
Toroid Core 40.6 27.4 (Dia.) x 15mm General Electronics - 4W620 40.6mm 15mm 27.4mm 40.6mm - - - - -
RS庫存編號 124-1537
製造零件編號7427005
HK$9.50
/個 (每包:10個)
單位
Ferrite Core 16 x 9 x 28mm General Electronics - 4 W 620 16mm 28mm 9mm 16mm - - - - -
RS庫存編號 123-4231
製造零件編號7427727
HK$34.91
/個 (每包:2個)
單位
EMI Suppression 14.2 x 6.35 x 28.5mm - - - - 28.5mm 6.35mm 14.2mm - - - - -
RS庫存編號 163-3216
製造零件編號7427727
HK$32.79
Each (In a Tray of 80)
單位
EMI Suppression 14.2 x 6.35 x 28.5mm - - - - 28.5mm 6.35mm 14.2mm - - - - -
RS庫存編號 124-1549
製造零件編號74270043
HK$10.35
/個 (每包:5個)
單位
EMI Suppression Axial Ferrite Bead 15.5 x 7.3 x 28.5mm Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires - 3 W 800 - 28.5mm 7.3mm 15.5mm - - - - -