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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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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Packaging
Core Material
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
228In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 20 Ohms 5 mm 7 mm 3 mm 0.7 mm 2.3 mm Tray 4 W 810
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
148In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 19 Ohms 11 mm 13.5 mm 4 mm 0.5 mm 2 mm Tray 4 W 810
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 27/02/2026
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
1.251On Order
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-SAFB 1mm 28Ohm @ 25MHz
Datasheet
1.000Expected 27/02/2026
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
920Expected 27/02/2026
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 27/02/2026
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