EMI Suppression Ferrite Beads

Würth Elektronik EMI Suppression Ferrite Bead product families include the WE-AFB, WE-AFB LFS, WE-SAFB, and WE-TOF series. The WE-AFB, WE-SAFB, and WE-TOF series all feature a ferrite core made of NiZn. This NiZn core allows for the best possible interference suppression and works in a broadband frequency range. The NiZn core ferrites are available in axial (WE-AFB) and toroidal (WE-SAFB) types. Würth WE-SAFB ferrite beads are smaller in size and used for cables with a diameter of 0.55mm up to 4mm. The WE-AFB LFS axial ferrite beads have an MnZn core. The MnZn core material is used for low-frequency applications from 150kHz and 30MHz.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Impedance
Inside Diameter
Outside Diameter
Inside Length
Outside Length
Outside Width
Inside Height
Outside Height
Qualification
Packaging
Core Material
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.8mm 25Ohm @ 25MHz
Datasheet
116In Stock
500Expected 20/02/2026
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 46 Ohms 2 mm 4 mm 5 mm Bulk 7 W 700
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1mm 35Ohm @ 25MHz
Datasheet
137In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 53 Ohms 1.2 mm 3.8 mm 4 mm Bulk 7 W 850
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 154Ohm
Datasheet
2,053In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 154 Ohms 6.35 mm 14.2 mm 28.5 mm Bulk 7 W 380
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 71Ohm
Datasheet
1,340In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 170 Ohms 9.5 mm 17.5 mm 12.7 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 90Ohm
Datasheet
987In Stock
2,176On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 150 Ohms 10.7 mm 17.5 mm 25 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 115Ohm
Datasheet
757In Stock
1,722On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 153 Ohms 18 mm 28 mm 28.5 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-FLAT 48Ohms 21Pol
Datasheet
95In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 48 Ohms 28 mm 33.5 mm 8 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 25MHz 31Ohm
Datasheet
629In Stock
500Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 60 Ohms 28 mm 12 mm 33.5 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 66Ohm
Datasheet
247In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 66 Ohms 44 mm 12 mm 49.6 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 45Ohms 10Pol
Datasheet
107In Stock
128Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 45 Ohms 15 mm 21 mm 8 mm 1.3 mm 6.8 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 48Ohm
Datasheet
47In Stock
324Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 48 Ohms 30 mm 8 mm 35 mm 1 mm 8 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-FLAT 13 Poles Round 100MHz @52Ohms
Datasheet
48In Stock
512Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 52 Ohms 18.8 mm 15 mm 23.8 mm 1.1 mm 6.3 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 80Ohm
Datasheet
160In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 80 Ohms 35 mm 15 mm 41.2 mm 1.5 mm 7.7 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 50Ohms 16Pol
Datasheet
91In Stock
128Expected 27/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 50 Ohms 22 mm 27 mm 8 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 150Ohm 20Pol
Datasheet
16In Stock
210On Order
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 150 Ohms 26.5 mm 38.1 mm 25.5 mm 1.9 mm 12.05 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 1MHz 90Ohm
Datasheet
66In Stock
Min.: 1
Mult.: 1

WE-AFB LFS Ferrites 61 Ohms 10.2 mm 18.6 mm Tray 8 W 5000
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
114In Stock
Min.: 1
Mult.: 1

WE-FLAT 11.5 mm 12 mm 16 mm 0.5 mm 5 mm Tray
Wurth Elektronik Ferrite Cable Cores WE-FLAT Round 100MHz @ 74Ohms
Datasheet
87In Stock
100Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 74 Ohms 28 mm 32 mm 8 mm 0.8 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
153In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 23 Ohms 13 mm 15.5 mm 6 mm 0.5 mm 2 mm Tray 4 W 810
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
214In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 31 Ohms 13 mm 15.5 mm 1 mm 0.5 mm 2 mm Tray 4 W 810
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
102In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 65 Ohms 41.5 mm 46 mm 12 mm 0.5 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Round 100MHz @ 50Ohms
Datasheet
1,007In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 50 Ohms 17 mm 21 mm 8 mm 0.8 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 370Ohm Ferrite Core
Datasheet
198In Stock
180Expected 20/02/2026
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 370 Ohms 6.1 mm 12 mm 45 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 270Ohm Ferrite Core
Datasheet
256In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 270 Ohms 7.3 mm 15.5 mm 28.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 200Ohm Ferrite Core
Datasheet
4In Stock
256On Order
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 200 Ohms 8.2 mm 14 mm 28.5 mm AEC-Q200 Tray 1E04 620