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 @ 58Ohms
Datasheet
256Expected 2026/10/02
$2.55
$2.44
$2.29
$2.13
View
Min.: 1
Mult.: 1
WE-FLAT Flat Ribbon Cable Cores Solid 58 Ohms 20 mm 23 mm 12 mm 0.7 mm 3 mm Tray 4 W 620
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1mm 31Ohm @ 25MHz
Datasheet
Non-Stocked Lead-Time 10 Weeks
$0.63
$0.598
$0.559
$0.521
$0.501
Min.: 1
Mult.: 1
WE-SAFB Round Cable Cores Solid 31 Ohms 1.2 mm 3.5 mm 4.5 mm Bulk 3 W 800
Wurth Elektronik Ferrite Cable Cores WE-SAFB 1mm 28Ohm @ 25MHz
Datasheet
Non-Stocked Lead-Time 18 Weeks
$0.63
$0.598
$0.559
$0.521
$0.50
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-FLAT Ferrite for Flexible Printed Circuit Board
Datasheet
Non-Stocked Lead-Time 24 Weeks
$3.52
$3.37
$3.15
$2.93
View
Min.: 1
Mult.: 1
WE-FLAT 27 mm 12 mm 31 mm 0.5 mm 5 mm Tray
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 100Ohm Ferrite Core
Datasheet
Non-Stocked Lead-Time 23 Weeks
$3.83
$3.74
$3.58
$3.43
$3.22
Min.: 1
Mult.: 1
WE-AEFA Round Cable Cores Solid 100 Ohms 7.3 mm 12 mm 15.5 mm AEC-Q200 Tray 1E04 620
Wurth Elektronik Ferrite Cable Cores WE-AEFA AEC-Q200 150Ohm Ferrite Core
Datasheet
Non-Stocked Lead-Time 23 Weeks
$5.77
$5.66
$5.43
$5.20
$5.19
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 7427236
Wurth Elektronik Ferrite Cable Cores WE-FLAT 133 Ohms a. 100 MHz 1 turn Number of poles = 40
Datasheet
Non-Stocked Lead-Time 24 Weeks
$23.50
$22.02
$22.00
$19.48
Min.: 1
Mult.: 1
WE-FLAT Flat Ribbon Cable Cores Full 68 Ohms 62 mm 82 mm 23 mm 11.5 mm 29 mm Tray F