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 3.45mm 35Ohms @ 25MHz 1Turn
Datasheet
4,180In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 54 Ohms 4 mm 6 mm 10 mm Bulk 4 W 1500
Wurth Elektronik Ferrite Cable Cores WE-SAFB 3.8mm 20Ohm @ 25MHz
Datasheet
3,987In 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 3.7mm 90Ohm @ 25MHz
Datasheet
947In Stock
Min.: 1
Mult.: 1

WE-SAFB Round Cable Cores Solid 148 Ohms 4 mm 7.7 mm 20 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 2.95mm 72Ohm @ 25MHz
Datasheet
2,147In Stock
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-SAFB 4 W 620 82Ohms @ 25MHz 1Turn
Datasheet
1,377In Stock
1,408On Order
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 Ferrite 25MHz 240Ohms
Datasheet
287In Stock
256Expected 2026/10/23
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 45Ohms 5.3 mm
Datasheet
402In Stock
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Axial Ferrite Beads 45 Ohms Bag
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 180Ohm
Datasheet
1,236In Stock
768Expected 2026/10/02
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 25MHz 133Ohm
Datasheet
1,945In Stock
2,944On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 217 Ohms 9 mm 16 mm 28 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 83Ohm
Datasheet
1,265In Stock
1,012On Order
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 143 Ohms 9 mm 16 mm 17 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 133Ohm
Datasheet
636In 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 46Ohm
Datasheet
742In Stock
128Expected 2026/10/23
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 70 Ohms 8.5 mm 12 mm 15 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 120Ohm
Datasheet
340In Stock
1,008On Order
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
936In Stock
640Expected 2026/10/02
Min.: 1
Mult.: 1

WE-AFB Tray
Wurth Elektronik Ferrite Cable Cores WE-AFB 1 Turn Axial 25MHz @ 28Ohms
Datasheet
341In Stock
1,650Expected 2026/10/02
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid Tray
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1.1mm 39Ohm @ 25MHz
Datasheet
779In Stock
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
1,300In Stock
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 3.6mm 144Ohm @ 25MHz
Datasheet
3,038In Stock
9,800On Order
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
2,138In 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-SAFB 1mm 35Ohm @ 25MHz
Datasheet
420In 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
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 154Ohm
Datasheet
2,701In Stock
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 154 Ohms 6.35 mm 14.2 mm 28.5 mm Bulk 7 W 380
Wurth Elektronik Ferrite Cable Cores WE-AFB Axial 25MHz 120Ohm
Datasheet
861In Stock
550Expected 2026/10/12
Min.: 1
Mult.: 1

WE-AFB Round Cable Cores Solid 220 Ohms 8.2 mm 14.2 mm 28.5 mm Bulk 7 W 700
Wurth Elektronik Ferrite Cable Cores WE-AFB 110Ohm@100MHz
Datasheet
155In Stock
Min.: 1
Mult.: 1

WE-AFB Tray
Wurth Elektronik Ferrite Cable Cores WE-AFB 1 Turn Axial 25MHz @ 59Ohms
Datasheet
66In Stock
1,024On Order
Min.: 1
Mult.: 1

WE-AFB EMI Suppression Ferrite Beads 94 Ohms Tray
Wurth Elektronik Ferrite Cable Cores WE-FLAT 21 Poles Round 100MHz @55Ohms
Datasheet
789In Stock
2,000Expected 2026/10/02
Min.: 1
Mult.: 1

WE-FLAT Flat Ribbon Cable Cores Solid 55 Ohms 28 mm 33.5 mm 10 mm 1.3 mm 6.5 mm Tray 4 W 620