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 212-0803
製造零件編號B64290L0040X830
BrandEPCOS
HK$58.07
單位
Ferrite Core 60.1 x 39.2 x 18.8mm Broadband Transformers, Choke, Mixer, Pulse, Transformer - Ferrite N30 - 18.8mm 39.2mm 60.1mm - - - - -
RS庫存編號 167-8385
製造零件編號B64290L0040X830
BrandEPCOS
HK$57.822
個 (以毎盒:50)
單位
Ferrite Core 60.1 x 39.2 x 18.8mm Broadband Transformers, Choke, Mixer, Pulse, Transformer - Ferrite N30 - 18.8mm 39.2mm 60.1mm - - - - -
RS庫存編號 212-0976
製造零件編號B64290L0659X830
BrandEPCOS
HK$47.49
單位
Toroid Core 41.8 (Dia.) x 17.2mm - - N30 41.8mm 17.02mm 22.5mm 41.8mm - - - - -
RS庫存編號 167-8277
製造零件編號B64290L0048X830
BrandEPCOS
HK$13.86
個 (以毎盒:100)
單位
Toroid Core 35.5 (Dia.) x 13.6mm General Electronics - N30 35.5mm 13.6mm 19.2mm 35.5mm - - - - -
RS庫存編號 212-0875
製造零件編號B64290L0048X830
BrandEPCOS
HK$16.48
單位
Toroid Core 35.5 (Dia.) x 13.6mm General Electronics - N30 35.5mm 13.6mm 19.2mm 35.5mm - - - - -
RS庫存編號 167-8290
製造零件編號B64290L0659X830
BrandEPCOS
HK$30.076
個 (以毎盒:80)
單位
Toroid Core 41.8 (Dia.) x 17.2mm - - N30 41.8mm 17.02mm 22.5mm 41.8mm - - - - -
RS庫存編號 167-8375
製造零件編號B64290L0045X830
BrandEPCOS
HK$3,716.00
毎盒:2000 個
Box(es)
Ferrite Core 17.2 (Dia.) x 7.3mm - - N30 17.2mm 7.3mm 9.6mm 16mm - - - - -
RS庫存編號 212-0869
製造零件編號B64290L0045X830
BrandEPCOS
HK$4.60
/個 (每包:5個)
單位
Ferrite Core 17.2 (Dia.) x 7.3mm - - N30 17.2mm 7.3mm 9.6mm 16mm - - - - -
RS庫存編號 167-8376
製造零件編號B64290L0618X035
BrandEPCOS
HK$5.55
個 (以毎盒:500)
單位
Ferrite Core 25.3 (Dia.) x 14.8 x 10mm - - T35 25.3mm 10mm 14.8mm 25.3mm - - - - -
RS庫存編號 212-0910
製造零件編號B64290L0618X035
BrandEPCOS
HK$11.47
/個 (每包:5個)
單位
Ferrite Core 25.3 (Dia.) x 14.8 x 10mm - - T35 25.3mm 10mm 14.8mm 25.3mm - - - - -
RS庫存編號 167-0319
製造零件編號B64290L0038X830
BrandEPCOS
HK$2,313.60
毎盒:3000 個
Box(es)
Ferrite Core 10.8 (Dia.) x 4.75mm - - N30 10.8mm 4.75mm 5.05mm 10.8mm - - - - -
RS庫存編號 125-3309
製造零件編號B64290L0038X087
BrandEPCOS
HK$1.036
/個 (每包:100個)
單位
Toroid Core 10.8 x 5.25 x 4.75mm Automotive Electronics, EMC Components, General Electronics - N87 - 4.75mm 5.25mm 10.8mm - - - - -
RS庫存編號 212-0926
製造零件編號B64290L0618X830
BrandEPCOS
HK$10.06
/個 (每包:5個)
單位
Toroid Core 26.6 (Dia.) x 11mm General Electronics - N30 26.8mm 11mm 13.5mm 26.6mm - - - - -
RS庫存編號 290-6219
製造零件編號B64290L0022X830
BrandEPCOS
HK$29.84
單位
Toroid Core 41.8 x 26.2 x 12.5mm - - Ferrite 41.8mm 12.5mm 26.2mm 41.8mm - - - - -
RS庫存編號 167-8264
製造零件編號B64290L0044X038
BrandEPCOS
HK$2,055.00
毎盒:1500 個
Box(es)
Ferrite Core 13.6 (Dia.) x 5.95mm - - T38 13.6mm 5.95mm 6.5mm 12.5mm - - - - -
RS庫存編號 167-8285
製造零件編號B64290L0674X830
BrandEPCOS
HK$17.21
個 (以毎盒:100)
單位
Toroid Core 37.5 (Dia.) x 16.2mm General Electronics - N30 37.5mm 16.2mm 23mm 37.5mm - - - - -
RS庫存編號 212-0881
製造零件編號B64290L0082X830
BrandEPCOS
HK$59.01
單位
Toroid Core 50 (Dia.) x 20mm General Electronics - N30 51.8mm 20mm 28.5mm 51.8mm - - - - -
RS庫存編號 125-3310
製造零件編號B64290L0044X087
BrandEPCOS
HK$1.528
/個 (每包:50個)
單位
Toroid Core 13.6 x 6.5 x 5.95mm Automotive Electronics, EMC Components, General Electronics - N87 - 5.95mm 6.5mm 13.6mm - - - - -
RS庫存編號 125-3322
製造零件編號B64290L0699X087
BrandEPCOS
HK$118.59
單位
Toroid Core 65.3 x 36 x 26.6mm Automotive Electronics, EMC Components, General Electronics - N87 - 26.6mm 36mm 65.3mm - - - - -
RS庫存編號 170-1369
製造零件編號B64290L0084X087
BrandEPCOS
HK$201.86
個 (在毎卷:12)
單位
Toroid Core 104.8 x 63.7 x 16.5mm Automotive Electronics, EMC Components, General Electronics - N87 - 16.5mm 63.7mm 104.8mm - - - - -