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 167-8385
製造零件編號B64290L0040X830
BrandEPCOS
HK$68.567
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 212-0803
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 167-8277
製造零件編號B64290L0048X830
BrandEPCOS
HK$21.619
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 167-8290
製造零件編號B64290L0659X830
BrandEPCOS
HK$34.209
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 212-0976
製造零件編號B64290L0659X830
BrandEPCOS
HK$49.60
單位
Toroid Core 41.8 (Dia.) x 17.2mm - - N30 41.8mm 17.02mm 22.5mm 41.8mm - - - - -
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 212-0910
製造零件編號B64290L0618X035
BrandEPCOS
HK$16.902
/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 212-0869
製造零件編號B64290L0045X830
BrandEPCOS
HK$8.558
/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$7.377
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 167-8375
製造零件編號B64290L0045X830
BrandEPCOS
HK$5,473.87
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 170-1374
製造零件編號B64290L0632X830
BrandEPCOS
HK$5.275
個 (在毎卷:1000)
單位
Toroid Core 21.2 x 8.95 x 8.1mm Automotive Electronics, EMC Components, General Electronics - N30 - 8.1mm 8.95mm 21.2mm - - - - -
RS庫存編號 170-1375
製造零件編號B64290L0674X038
BrandEPCOS
HK$33.15
個 (在毎卷:100)
單位
Toroid Core 37.5 x 21.7 x 16.2mm Automotive Electronics, EMC Components, General Electronics - T37 - 16.2mm 21.7mm 37.5mm - - - - -
RS庫存編號 125-3311
製造零件編號B64290L0045X038
BrandEPCOS
HK$4.026
/個 (每包:25個)
單位
Toroid Core 17.2 x 8.5 x 7.3mm Automotive Electronics, EMC Components, General Electronics - T38 - 7.3mm 8.5mm 17.2mm - - - - -
RS庫存編號 167-8333
製造零件編號B64290L0082X830
BrandEPCOS
HK$72.203
個 (以毎盒:40)
單位
Toroid Core 50 (Dia.) x 30mm General Electronics - N30 51.8mm 30mm 28.5mm 51.8mm - - - - -
RS庫存編號 170-1376
製造零件編號B64290L0674X087
BrandEPCOS
HK$24.598
個 (在毎卷:100)
單位
Toroid Core 37.5 x 21.7 x 16.2mm Automotive Electronics, EMC Components, General Electronics - N87 - 16.2mm 21.7mm 37.5mm - - - - -
RS庫存編號 170-1377
製造零件編號B64290L0699X087
BrandEPCOS
HK$124.538
個 (在毎卷:30)
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 212-0774
製造零件編號B64290P0037X830
BrandEPCOS
HK$3.84
/個 (每包:5個)
單位
Ferrite Core 6.3 (Dia.) x 2.5mm General Electronics - N30 6.3mm 2.5mm - 6.3mm - - - - -
RS庫存編號 170-1370
製造零件編號B64290L0618X027
BrandEPCOS
HK$6.409
個 (在毎卷:500)
單位
Toroid Core 26.6 x 13.5 x 11mm Automotive Electronics, EMC Components, General Electronics - N37 - 11mm 13.5mm 26.6mm - - - - -
RS庫存編號 170-1362
製造零件編號B64290L0038X038
BrandEPCOS
HK$1.324
個 (以毎盒:3000)
單位
Toroid Core 10.8 x 5.25 x 4.75mm Automotive Electronics, EMC Components, General Electronics - T38 - 4.75mm 5.25mm 10.8mm - - - - -
RS庫存編號 167-8284
製造零件編號B64290P0037X830
BrandEPCOS
HK$7,592.75
毎盒:4000 個
Box(es)
Ferrite Core 6.3 (Dia.) x 2.5mm General Electronics - N30 6.3mm 2.5mm - 6.3mm - - - - -