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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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Currently unavailable Fair-Rite Ferrite Ring 4.05 mm, For: Suppression Components RS Stock No. 482-6648 Mfr. Part No. 2643013801 Subtotal (1 pack of 25 units) $1.575(exc. GST) $0.063/unit Quantity	Fair-Rite	-	Ferrite Ring	-	-	-	Suppression Components	-	-	43 Material	-	4.05mm	-	-	-	-	-	-	-	-
New product - Preorder today Fair-Rite Ferrite Core Multi-Core 14.75 mm, For: Antenna 6.6 mm ID 29.75 mm OD RS Stock No. 735-029 Mfr. Part No. 2867010002 Subtotal (1 unit) $27.31(exc. GST) $27.31/unit Quantity	Fair-Rite	-	Ferrite Core	Multi-Core	-	-	Antenna	-	-	Nickel Zinc	-	14.75mm	50MHz	-	6.6mm	-	29.75mm	-	2868	RoHS
Temporarily out of stock RND Ferrite Core Toroidal 10.9 mm, For: Transformer 14 mm ID 26.1 mm OD RS Stock No. 805-047 Mfr. Part No. RND 165-00212 Subtotal (1 pack of 100 units) $210.00(exc. GST) $2.10/unit Quantity	RND	-	Ferrite Core	Toroidal	-	-	Transformer	-	-	Ferrite	-	10.9mm	-	-	14mm	-	26.1mm	-	RND 165	-
Currently unavailable Fair-Rite RS Stock No. 255-5177 Mfr. Part No. 5943001801 Subtotal (1 pack of 5 units) $8.86(exc. GST) $1.772/unit Quantity	Fair-Rite	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Last RS stock TDK Ferrite Ring EMI Suppression Toroid Core, For: Round Cable, 10 x 5 x 5mm RS Stock No. 644-1621 Mfr. Part No. HF70T10X5X5 Subtotal (1 pack of 10 units) $4.54(exc. GST) $0.454/unit Quantity	TDK	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Currently unavailable Distrelec RS Stock No. 609-013 Mfr. Part No. FT-50A-43 Subtotal (1 unit) $1.55(exc. GST) $1.55/unit Quantity	Distrelec	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	RoHS Compliant
Currently unavailable Fair-Rite Ferrite Core Round Cable Core 28.6 mm, For: EMI Suppression 9.5 mm ID 17.4 mm OD RS Stock No. 151-2730 Mfr. Part No. 2675665702 Subtotal (1 tray of 376 units) $586.56(exc. GST) $1.56/unit Quantity	Fair-Rite	-	Ferrite Core	Round Cable Core	-	-	EMI Suppression	22Ω	200kHz	75 Material	-	28.6mm	30MHz	-	9.5mm	-	17.4mm	-	-	RoHS
Currently unavailable Fair-Rite Ferrite Core Round Cable Core 28.6 mm, For: EMI Suppression 9.5 mm ID 17.4 mm OD RS Stock No. 151-2781 Mfr. Part No. 2675665702 Subtotal (1 pack of 10 units) $22.78(exc. GST) $2.278/unit Quantity	Fair-Rite	-	Ferrite Core	Round Cable Core	-	-	EMI Suppression	22Ω	200kHz	75 Material	-	28.6mm	30MHz	-	9.5mm	-	17.4mm	-	-	RoHS
Temporarily out of stock RND Ferrite Core Toroidal 6.4 mm, For: Transformer 13.2 mm ID 21 mm OD RS Stock No. 805-030 Mfr. Part No. RND 165-00198 Subtotal (1 pack of 100 units) $83.30(exc. GST) $0.833/unit Quantity	RND	-	Ferrite Core	Toroidal	-	-	Transformer	-	500MHz	Ferrite	-	6.4mm	100MHz	-	13.2mm	-	21mm	-	RND 165	-
Temporarily out of stock RND Ferrite Core Toroidal 15.4 mm, For: Transformer 23 mm ID 35.6 mm OD RS Stock No. 804-805 Mfr. Part No. RND 165-00203 Subtotal (1 pack of 100 units) $400.00(exc. GST) $4.00/unit Quantity	RND	-	Ferrite Core	Toroidal	-	-	Transformer	-	-	Ferrite	-	15.4mm	-	-	23mm	-	35.6mm	-	RND 165	-
New product - Preorder today Fair-Rite Ferrite Core Multi-Core 9.8 mm, For: Antenna 5 mm ID 20 mm OD RS Stock No. 735-026 Mfr. Part No. 2867014302 Subtotal (1 unit) $7.06(exc. GST) $7.06/unit Quantity	Fair-Rite	-	Ferrite Core	Multi-Core	-	-	Antenna	-	-	Nickel Zinc	-	9.8mm	50MHz	-	5mm	-	20mm	-	2867	RoHS
Currently unavailable Fair-Rite RS Stock No. 255-5191 Mfr. Part No. 5961000621 Subtotal (1 unit) $2.79(exc. GST) $2.79/unit Quantity	Fair-Rite	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temporarily out of stock RND Ferrite Core Clip-On 25 mm, For: EMI Suppression 15 mm ID 31 mm OD RS Stock No. 804-854 Mfr. Part No. RND 165-00023 Subtotal (1 pack of 100 units) $137.50(exc. GST) $1.375/unit Quantity	RND	-	Ferrite Core	Clip-On	-	-	EMI Suppression	60Ω	25MHz	Ferrite	-	25mm	100MHz	-	15mm	-	31mm	-	RND 165	-
New product - Preorder today Fair-Rite Ferrite Core Multi-Core 9.8 mm, For: Antenna 5 mm ID 20 mm OD RS Stock No. 735-028 Mfr. Part No. 2868015302 Subtotal (1 unit) $11.84(exc. GST) $11.84/unit Quantity	Fair-Rite	-	Ferrite Core	Multi-Core	-	-	Antenna	-	-	Nickel Zinc	-	9.8mm	150MHz	-	5mm	-	20mm	-	2868	RoHS
Currently unavailable Fair-Rite RS Stock No. 255-5172 Mfr. Part No. 5943001301 Subtotal (1 box of 648 units) $675.864(exc. GST) $1.043/unit Quantity	Fair-Rite	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
In Stock Essentra Ferrite Ring Toroid Core 16 mm, For: Multi-Turn Suppression Core 8.2 mm ID 16.5 mm OD RS Stock No. 257-4418 Mfr. Part No. RT165-082-160-K5B Subtotal (1 pack of 5 units) $23.18(exc. GST) $4.636/unit Quantity	Essentra	-	Ferrite Ring	Toroid Core	-	-	Multi-Turn Suppression Core	-	25MHz	K5B	-	16mm	100MHz	-	8.2mm	-	16.5mm	-	RT	No
In Stock Wurth Elektronik Ferrite Ring Toroid Core 12 mm, For: EMI Suppression 15 mm ID 12 mm OD RS Stock No. 163-4552 Mfr. Part No. 742701703 Subtotal (1 tray of 130 units) $349.05(exc. GST) $2.685/unit Quantity	Wurth Elektronik	-	Ferrite Ring	Toroid Core	-	-	EMI Suppression	-	25MHz	7W380	-	12mm	100MHz	-	15mm	-	12mm	-	WE-TOF	No
In Stock Essentra Ferrite Ring Toroid Core 6.4 mm, For: Filtering 13.5 mm ID 22 mm OD RS Stock No. 257-4446 Mfr. Part No. RT220-135-064 Subtotal (1 pack of 5 units) $31.91(exc. GST) $6.382/unit Quantity	Essentra	-	Ferrite Ring	Toroid Core	-	-	Filtering	-	25MHz	Ferrite	-	6.4mm	100MHz	-	13.5mm	-	22mm	-	RT	No
Temporarily out of stock Wurth Elektronik Ferrite Ring EMI Suppression 3 mm, For: Electromagnetic Interface 1.2 mm ID 3.5 mm OD RS Stock No. 163-3198 Mfr. Part No. 74270071 Subtotal (1 bag of 500 units) $487.00(exc. GST) $0.974/unit Quantity	Wurth Elektronik	-	Ferrite Ring	EMI Suppression	-	-	Electromagnetic Interface	-	25MHz	Ferrite, Nickel Zinc	-	3mm	100MHz	-	1.2mm	-	3.5mm	-	WE-SAFB	RoHS, REACH
New product - Preorder today Fair-Rite Ferrite Core Multi-Core 9.8 mm, For: Antenna 5 mm ID 20 mm OD RS Stock No. 735-027 Mfr. Part No. 2867015302 Subtotal (1 unit) $9.94(exc. GST) $9.94/unit Quantity	Fair-Rite	-	Ferrite Core	Multi-Core	-	-	Antenna	-	-	Nickel Zinc	-	9.8mm	50MHz	-	5mm	-	20mm	-	2867	RoHS