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 (GBP) 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
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Core Material
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
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 220Ohm Ferrite Core
Datasheet
283In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 220 Ohms 9.5 mm 17.5 mm 28.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 150Ohm Ferrite Core
Datasheet
117In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 150 Ohms 10.5 mm 15.5 mm 28 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 190Ohm Ferrite Core
Datasheet
122In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 190 Ohms 15.5 mm 26 mm 28.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.4mm 28Ohm @ 25MHz
Datasheet
619In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 28 Ohms 1.6 mm 4.1 mm 3.2 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.65mm 50Ohm @ 25MHz
Datasheet
2,218In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 79 Ohms 2 mm 4 mm 10 mm Bulk 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 3.45mm 35Ohms @ 25MHz 1Turn
Datasheet
1,070In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 54 Ohms 4 mm 6 mm 10 mm Bulk 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-SAFB 3.7mm 90Ohm @ 25MHz
Datasheet
817In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 148 Ohms 4 mm 7.7 mm 20 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 163Ohm
Datasheet
434In Stock
7,808Expected 06/03/2026
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 198 Ohms 5 mm 11.5 mm 20.5 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 133Ohm
Datasheet
1,971In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 217 Ohms 9 mm 16 mm 28 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 83Ohm
Datasheet
543In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 143 Ohms 9 mm 16 mm 17 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 85Ohm
Datasheet
1,016In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 120 Ohms 6.35 mm 9.9 mm 19.5 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial Ferrite 25MHz 256Ohm
Datasheet
233In Stock
1,080Expected 27/02/2026
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 6.1 mm 12 mm 45 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.8mm 25Ohm @ 25MHz
Datasheet
116In Stock
500Expected 27/02/2026
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-AFB Axial 25MHz 120Ohm
Datasheet
770In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 220 Ohms 8.2 mm 14.2 mm 28.5 mm Bulk 7 W 700
Wurth Elektronik Ferrite Cable Cores WE-AFB 110Ohm@100MHz
Datasheet
188In Stock
Min.: 1
Mult.: 1

WE-AFB Tray
Wurth Elektronik Ferrite Cable Cores WE-AFB 1 Turn Axial 25MHz @ 59Ohms
Datasheet
613In Stock
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Ferrite Beads 94 Ohms Tray
Wurth Elektronik Ferrite Cable Cores WE-FLAT 21 Poles Round 100MHz @55Ohms
Datasheet
58In Stock
1,400On Order
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 55 Ohms 28 mm 33.5 mm 10 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 26 Poles Round 100MHz @52Ohms
Datasheet
235In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 48 Ohms 34.8 mm 1 mm 40 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 90Ohm
Datasheet
96In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 90 Ohms 28 mm 2 mm 33.5 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 42Ohms 23Pol
Datasheet
31In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 42 Ohms 31.6 mm 35.5 mm 5 mm 1 mm 8 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-FLAT 64Ohm@100MHz 11.5mm
Datasheet
128In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 64 Ohms 11.5 mm 16 mm 8 mm 0.5 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Round 100MHz @ 58Ohms
Datasheet
142In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 58 Ohms 20 mm 23 mm 12 mm 0.7 mm 3 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Hanging Ferr Core 100MHz 80Ohms
Datasheet
822In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 80 Ohms 27 mm 31 mm 12 mm 0.7 mm 3 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
135In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 20 Ohms 13 mm 15.5 mm 4 mm 0.5 mm 2 mm Tray 4 W 810