Ferrite Rings

Ferrite rings are toroidal (doughnut) shaped, or cylindrical shaped pieces of ferrite (a ceramic compound).

What do ferrite rings do?

Ferrite rings help to protect against Electromagnetic Interference) (EMI) and Radio Frequency interference (RFI). They prevent interference moving to a device or from a device

How do ferrite rings 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 ferrite rings 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.

Applications

Digital Audio systems
Computers
Sensitive electrical equipment

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Wurth Elektronik Ferrite Sleeve EMI Suppression Axial Ferrite Bead, 11.5 x 5 x 18.5mm RS Stock No.: 332-407 Mfr. Part No.: 782013046185 Datasheets: $1.377 Each (In a Bag of 10)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	11.5 x 5 x 18.5mm	-	135 O, 186 O	1E04 620	5mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 9.5 x 4.8 x 9.5mm RS Stock No.: 332-404 Mfr. Part No.: 782013044095 Datasheets: $0.633 Each (In a Bag of 10)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	9.5 x 4.8 x 9.5mm	-	60 O, 84 O	1E04 620	4.8mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 17.5 x 9.5 x 12.7mm RS Stock No.: 332-462 Mfr. Part No.: 74270091 Datasheets: $4.325 Each (In a Bag of 2)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	17.5 x 9.5 x 12.7mm	-	53 O, 93 O	3W800	9.5mm	-	-	-
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite, For: Coaxial Cable, Multiconductor Wire, Wires, RS Stock No.: 124-1850P Mfr. Part No.: 74270117 Datasheets: $1.083 Each (Supplied in a Bag)	Wurth Elektronik	EMI Suppression Toroidal Ferrite	14 x 10 x 8mm	Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable	-	3 W 800	-	8mm	10mm	14mm
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite, For: EMI Suppression, 16.3 x 11.7 x 7.3mm RS Stock No.: 332-375 Mfr. Part No.: 782115110070 Datasheets: $1.828 Each (In a Bag of 5)	Wurth Elektronik	EMI Suppression Toroidal Ferrite	16.3 x 11.7 x 7.3mm	EMI Suppression	10.5 Ω	2E08 6021	11.7mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Toroidal Ferrite, For: EMI Suppression, 13 x 7.62 x 6.65mm RS Stock No.: 332-368 Mfr. Part No.: 782115069064 Datasheets: $0.94 Each	Wurth Elektronik	EMI Suppression Toroidal Ferrite	13 x 7.62 x 6.65mm	EMI Suppression	15.5 Ω	2E08 6021	7.62mm	-	-	-
EPCOS Ferrite Ring Toroid Core, For: Automotive Electronics, EMC Components, General Electronics, 37.5 x 21.7 x 16.2mm RS Stock No.: 170-1375 Mfr. Part No.: B64290L0674X038 Datasheets: $6.455 Each (On a Reel of 100)	EPCOS	Toroid Core	37.5 x 21.7 x 16.2mm	Automotive Electronics, EMC Components, General Electronics	-	T37	-	16.2mm	21.7mm	37.5mm
EPCOS Ferrite Ring Toroid Core, For: General Electronics, 26.6 (Dia.) x 11mm RS Stock No.: 162-0149 Mfr. Part No.: B64290L0618X830 Datasheets: $1.326 Each (In a Box of 500)	EPCOS	Toroid Core	26.6 (Dia.) x 11mm	General Electronics	-	N30	26.8mm	11mm	13.5mm	26.8mm
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 15.5 x 10.5 x 28mm RS Stock No.: 332-456 Mfr. Part No.: 74270051 Datasheets: $2.272 Each (In a Bag of 5)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	15.5 x 10.5 x 28mm	-	80 O, 152 O	3W800	10.5mm	-	-	-
Wurth Elektronik Ferrite Sleeve EMI Suppression Axial Ferrite Bead, 15.5 x 10.5 x 28mm RS Stock No.: 332-416 Mfr. Part No.: 782013100280 Datasheets: $2.25 Each (In a Bag of 5)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	15.5 x 10.5 x 28mm	-	100 O, 150 O	1E04 620	10.5mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 7.80 x 5.45 x 9.80mm RS Stock No.: 332-479 Mfr. Part No.: 742700391 Datasheets: $0.36 Each	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	7.80 x 5.45 x 9.80mm	-	27 O, 47 O	7 W 850	5.45mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Toroidal Ferrite, For: EMI Suppression, 14.3 x 9.7 x 8.3mm RS Stock No.: 332-373 Mfr. Part No.: 782115070080 Datasheets: $1.306 Each (In a Bag of 10)	Wurth Elektronik	EMI Suppression Toroidal Ferrite	14.3 x 9.7 x 8.3mm	EMI Suppression	13 Ω	2E08 6021	9.7mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 16 x 8 x 16mm RS Stock No.: 332-480 Mfr. Part No.: 742700752 Datasheets: $1.05 Each (In a Tray of 99)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	16 x 8 x 16mm	-	72 O, 113 O	7 W 850	8mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 17.5 x 10.7 x 18mm RS Stock No.: 332-469 Mfr. Part No.: 74270094 Datasheets: $2.202 Each (In a Tray of 63)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	17.5 x 10.7 x 18mm	-	73 O, 107 O	4W620	10.7mm	-	-	-
Wurth Elektronik Ferrite Bead EMI Suppression Axial Ferrite Bead, 7.80 x 5.45 x 9.80mm RS Stock No.: 332-478 Mfr. Part No.: 742700391 Datasheets: $0.305 Each (In a Bag of 250)	Wurth Elektronik	EMI Suppression Axial Ferrite Bead	7.80 x 5.45 x 9.80mm	-	27 O, 47 O	7 W 850	5.45mm	-	-	-

Ferrite Rings

What do ferrite rings do?

How do ferrite rings work?

How are ferrite rings used?

435 Products showing for Ferrite Rings

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