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-FLAT Round 100MHz @ 23Ohms
Datasheet
136In Stock
180Expected 08/05/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 23 Ohms 11 mm 13.5 mm 6 mm 0.5 mm 2 mm Tray 4 W 810
Wurth Elektronik Ferrite Cable Cores 166uF
Datasheet
123In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 32 Ohms 11 mm 13.5 mm 1 mm 0.5 mm 2 mm Tray 4 W 810
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 205Ohm Ferrite Core
Datasheet
604In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 205 Ohms 3.6 mm 12 mm 15 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 84Ohm Ferrite Core
Datasheet
132In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 84 Ohms 4.8 mm 9.5 mm 9.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 186Ohm Ferrite Core
Datasheet
73In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 186 Ohms 5 mm 11.5 mm 18.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 255Ohm Ferrite Core
Datasheet
681In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 255 Ohms 5 mm 11.5 mm 25 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 270Ohm Ferrite Core
Datasheet
556In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 270 Ohms 6.3 mm 14 mm 28.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 210Ohm Ferrite Core
Datasheet
352In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 210 Ohms 7.2 mm 14 mm 25 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 240Ohm Ferrite Core
Datasheet
190In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 240 Ohms 13 mm 26 mm 28.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA Axial EMI Suppression Ferrite 152 Ohms
Datasheet
10In Stock
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 152 Ohms 41.5 mm 65 mm 40 mm Bulk 1E04_620
Wurth Elektronik Ferrite Cable Cores AXIAL FERRITE BEADS
Datasheet
3,610On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 240 Ohms 5.5 mm 10.5 mm 28.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 116Ohm
Datasheet
1,400On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 192 Ohms 15.5 mm 26 mm 28.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 63Ohm
Datasheet
882Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 63 Ohms 52 mm 12 mm 57.9 mm 1.3 mm 7 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB EMI Suppressn 100ohms 6.1mm
Datasheet
1,251Expected 20/02/2026
Min.: 1
Mult.: 1

WE-AFB LFS Ferrites 82 Ohms 6.35 mm 14.2 mm Tray 8 W 5000
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 1MHz 100Ohm
Datasheet
484On Order
Min.: 1
Mult.: 1

WE-AFB LFS Ferrites 61 Ohms 9.5 mm 17.5 mm Tray 8 W 5000
Wurth Elektronik Ferrite Cable Cores WE-SAFB .55mm 38Ohm @ 25MHz
Datasheet
4,900Expected 06/03/2026
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 38 Ohms 0.76 mm 2.5 mm 4 mm Bulk 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 180Ohm
Datasheet
2,776Expected 03/04/2026
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 258 Ohms 6.3 mm 14.1 mm 28.6 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial Ferrite 25MHz 256Ohm
Datasheet
233In Stock
1,080Expected 20/02/2026
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 1mm 28Ohm @ 25MHz
Datasheet
1,000Expected 20/02/2026
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 41 Ohms 1.2 mm 3 mm Bulk 7 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB 1 Turn Axial 25MHz @ 40Ohms
Datasheet
920On Order
Min.: 1
Mult.: 1

WE-AFB LFS Ferrites 46 Ohms 4.8 mm 9.5 mm Tray 8 W 5000
Wurth Elektronik Ferrite Cable Cores WE-FLAT for Flex Circ Bds 22Ohm 24mm
Datasheet
400Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 100 Ohms 24 mm 28 mm 15 mm 0.75 mm 3.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Round 100MHz @ 127Ohms
Datasheet
317Expected 06/03/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 127 Ohms 11.5 mm 16 mm 2 mm 0.5 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 240Ohm Ferrite Core
Datasheet
221Expected 20/02/2026
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 240 Ohms 8 mm 16 mm 28.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 2.95mm 72Ohm @ 25MHz
Datasheet
3,147Expected 06/03/2026
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 106 Ohms 3.18 mm 7.6 mm 10 mm Bulk 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB 110Ohm@100MHz
Datasheet
188On Order
Min.: 1
Mult.: 1

WE-AFB Tray