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 (USD) 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-AFB Axial 1MHz 100Ohm
Datasheet
1,015In Stock
Min.: 1
Mult.: 1

WE-AFB LFS Ferrites 69 Ohms 8 mm 16 mm Tray 8 W 5000
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial Ferrite 10MHz 50Ohm
Datasheet
1,268In Stock
Min.: 1
Mult.: 1

WE-AFB LFS Ferrites 43 Ohms 12.8 mm 26.6 mm Tray 8 W 5000
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 460Ohm Ferrite Core
Datasheet
1,094In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 480 Ohms 8 mm 16 mm 50.8 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 53Ohms 21Pol
Datasheet
201In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 53 Ohms 40 mm 45.2 mm 8 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 130Ohms 24mm
Datasheet
155In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 130 Ohms 24 mm 22 mm 28.5 mm 0.8 mm 5.38 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB EMI Axial 100MHz 205Ohm
Datasheet
12,066In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 205 Ohms 10.5 mm 15.5 mm 28 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB EMI Axial 100MHz 210Ohm
Datasheet
2,228In Stock
8,536On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 210 Ohms 9.5 mm 17.5 mm 28.5 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 25MHz 26Ohm
Datasheet
1,842In Stock
2,876On Order
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 66 Ohms 40 mm 12 mm 45.2 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Flat Ferrite Core
Datasheet
1,652In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 22 mm 9 mm 26 mm 1.2 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 345Ohm Ferrite Core
Datasheet
660In Stock
120Expected 2026/02/18
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 345 Ohms 11.5 mm 19 mm 50.8 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.65mm 45Ohm @ 25MHz
Datasheet
497In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 60 Ohms 2 mm 4 mm 10 mm Bulk 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-SAFB .85mm 65Ohm @ 25MHz
Datasheet
3,774In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 65 Ohms 1.2 mm 3.5 mm 6 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-SAFB 4 W 620 82Ohms @ 25MHz 1Turn
Datasheet
1,514In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 123 Ohms 3.18 mm 6.35 mm 15.88 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 85Ohm
Datasheet
1,108In Stock
768Expected 2026/02/20
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 160 Ohms 7.3 mm 12.1 mm 15.5 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 173Ohm
Datasheet
2,135In Stock
788On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 275 Ohms 6.9 mm 15.5 mm 20 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial Ferrite 25MHz 240Ohms
Datasheet
690In Stock
256Expected 2026/02/20
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 350 Ohms 3.55 mm 12 mm 25 mm Bulk 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 300Ohm
Datasheet
290In Stock
840Expected 2026/02/20
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 451 Ohms 7.93 mm 15.85 mm 50.8 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial Ferrite Core 170 OHM
Datasheet
418In Stock
2,673On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 170 Ohms 8 mm 16 mm 16 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 133Ohm
Datasheet
382In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 225 Ohms 10.2 mm 18.6 mm 28.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 120Ohm
Datasheet
607In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 192 Ohms 6.3 mm 14.1 mm 18 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB 1 Turn Axial 25MHz @ 50Ohms
Datasheet
1,205In Stock
Min.: 1
Mult.: 1

WE-AFB Tray
Wurth Elektronik Ferrite Cable Cores WE-AFB 1 Turn Axial 25MHz @ 28Ohms
Datasheet
692In Stock
330Expected 2026/02/20
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid Tray
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.1mm 39Ohm @ 25MHz
Datasheet
80In Stock
600Expected 2026/02/20
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 54 Ohms 1.3 mm 3.5 mm 5 mm Bulk 7 W 700
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.8mm 25Ohm @ 25MHz
Datasheet
116In Stock
500Expected 2026/02/20
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