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
Qualification
Packaging
Core Material
Wurth Elektronik Ferrite Cable Cores WE-SAFB 3.8mm 20Ohm @ 25MHz
Datasheet
7,351In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 33 Ohms 4 mm 6 mm 4 mm Bulk 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1mm 95Ohm @ 25MHz
Datasheet
44,485In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 138 Ohms 1.58 mm 3.8 mm 13.97 mm Bulk 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB EMI Axial 100MHz 200Ohm
Datasheet
31,259In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 200 Ohms 3.55 mm 12 mm 15 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 156Ohm
Datasheet
11,317In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 274 Ohms 7.3 mm 15.5 mm 28.5 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 56Ohm
Datasheet
30,267In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 162 Ohms 4.75 mm 9.5 mm 9.5 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.6mm 39Ohm @ 25MHz
Datasheet
5,492In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 51 Ohms 1.6 mm 4.1 mm 4 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-SAFB 3mm 55Ohms @ 25MHz 1Turn
Datasheet
12,093In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 79 Ohms 3 mm 5.65 mm 9.8 mm Bulk 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 150Ohm Ferrite Core
Datasheet
3In Stock
63Expected 20/02/2026
Min.: 1
Mult.: 1

WE-AEFA Round Cable Cores Solid 150 Ohms 13 mm 19 mm 28 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
19In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 66 Ohms 52 mm 56 mm 12 mm 0.5 mm 5 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-FLAT Core 100MHz 75Ohm
Datasheet
997In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 75 Ohms 18.8 mm 12 mm 23.8 mm 1.1 mm 6.3 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 3.6mm 144Ohm @ 25MHz
Datasheet
4,412In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 224 Ohms 4 mm 8 mm 30 mm Bulk 7 W 700
Wurth Elektronik Ferrite Cable Cores WE-SAFB 4mm 60Ohm @ 25MHz
Datasheet
2,611In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 118 Ohms 4.2 mm 9 mm 15.5 mm Bulk 7 W 700
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 170Ohm
Datasheet
37,433In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 255 Ohms 5 mm 11.5 mm 25 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB 45Ohms 5.3 mm
Datasheet
1,312In Stock
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Axial Ferrite Beads 45 Ohms Bag
Wurth Elektronik Ferrite Cable Cores WE-AFB 125Ohms 7.5mm
Datasheet
784In Stock
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Axial Ferrite Beads 125 Ohms Tray
Wurth Elektronik Ferrite Cable Cores WE-SAFB 2.2mm 71Ohm @ 25MHz
Datasheet
4,417In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 103 Ohms 2.4 mm 7.5 mm 7.5 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 125Ohm
Datasheet
4,566In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 158 Ohms 5 mm 11.5 mm 18.5 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 133Ohm
Datasheet
2,567In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 211 Ohms 7.2 mm 14.2 mm 25 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 195Ohm
Datasheet
3,251In Stock
3,564Expected 20/02/2026
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 258 Ohms 8 mm 16 mm 28.5 mm Tray 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 202Ohm
Datasheet
4,566In Stock
1,020Expected 29/05/2026
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 338 Ohms 11.5 mm 19 mm 50.8 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB 12.5mm 644ohm 25MHz 2 turn
Datasheet
2,043In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 250 Ohms 13 mm 26 mm 28.5 mm Tray 7 W 380
Wurth Elektronik Ferrite Cable Cores WE-AFB Ferrite 25MHz 155Ohm
Datasheet
4,076In Stock
2,961Expected 20/02/2026
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 250 Ohms 13 mm 26 mm 28.5 mm Tray 4W620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 166Ohm
Datasheet
3,458In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 166 Ohms 14 mm 8 mm 18 mm 1 mm 5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT Core 100MHz 115Ohm
Datasheet
3,250In Stock
1,408Expected 20/02/2026
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 115 Ohms 23 mm 14.6 mm 28 mm 1.5 mm 7.7 mm Tray 4 W 620