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-SAFB 1.6mm 39Ohm @ 25MHz
Datasheet
4,742In 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-AFB EMI Axial 100MHz 205Ohm
Datasheet
10,756In 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-FLAT Core 100MHz 63Ohm
Datasheet
1,188In Stock
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-SAFB .55mm 38Ohm @ 25MHz
Datasheet
4,655In Stock
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 Ferrite 25MHz 155Ohm
Datasheet
6,431In Stock
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-SAFB 3mm 55Ohms @ 25MHz 1Turn
Datasheet
10,793In 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-SAFB .85mm 65Ohm @ 25MHz
Datasheet
3,683In 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-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
12In 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 208Ohm 11.1mm
Datasheet
859In Stock
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Axial Ferrite Beads 208 Ohms Tray
Wurth Elektronik Ferrite Cable Cores WE-FLAT 114Ohm 16Pol
Datasheet
931In Stock
512Expected 2026/10/02
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 56 Ohms 23 mm 28 mm 18 mm 1.5 mm 7.7 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB EMI Axial 100MHz 210Ohm
Datasheet
22,998In Stock
616On 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-AFB Axial 25MHz 125Ohm
Datasheet
17,420In Stock
12,064Expected 2026/10/12
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 Ferrite Core 170 OHM
Datasheet
2,942In Stock
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 125Ohms 7.5mm
Datasheet
939In Stock
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Axial Ferrite Beads 125 Ohms Tray
Wurth Elektronik Ferrite Cable Cores WE-FLAT 45Ohms 10Pol
Datasheet
610In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 45 Ohms 15 mm 21 mm 8 mm 1.3 mm 6.8 mm Tray 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-FLAT 50Ohms 16Pol
Datasheet
199In Stock
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 50 Ohms 22 mm 27 mm 8 mm 1.3 mm 6.5 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 150Ohm 20Pol
Datasheet
188In Stock
315On Order
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 150 Ohms 26.5 mm 38.1 mm 25.5 mm 1.9 mm 12.05 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-FLAT 130Ohms 24mm
Datasheet
169In 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-SAFB 1mm 95Ohm @ 25MHz
Datasheet
24,232In 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 Axial 25MHz 163Ohm
Datasheet
9,060In Stock
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 170Ohm
Datasheet
12,489In Stock
24,320Expected 2026/10/16
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 Axial 25MHz 56Ohm
Datasheet
22,354In Stock
37,000On Order
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-AFB Axial 25MHz 173Ohm
Datasheet
5,288In Stock
14,994Expected 2026/10/12
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 AXIAL FERRITE BEADS
Datasheet
4,278In Stock
2,432Expected 2026/10/16
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 156Ohm
Datasheet
8,123In 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