WE-TEFA Toroidal EMI Suppression Ferrites

Würth Elektronik WE-TEFA Toroidal EMI Suppression Ferrites feature a ferrite core made of MgZn, a material that works in a wider frequency range than NiZn. The MgZn core enhances the properties of EMI suppression in the middle frequency range, ensuring it will attenuate the EMC interferences earlier. Würth Elektronik WE-TEFA Ferrites are ideal for data and signal lines, coaxial cables, multiconductor wires, and multimedia cable interfaces. 

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Outside Diameter
Outside Length
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Core Material
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
12,624In Stock
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 42 Ohms 7.9 mm 12.7 mm 6.35 mm AEC-Q200 Bulk 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
152In Stock
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 40 Ohms 10 mm 14 mm 8 mm AEC-Q200 Tray 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
17In Stock
60Expected 2/20/2026
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 92 Ohms 16 mm 28 mm 13 mm AEC-Q200 Tray 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
739In Stock
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 107 Ohms 8 mm 16.5 mm 13 mm AEC-Q200 Tray 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
115In Stock
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 45 Ohms 13.8 mm 22.5 mm 6.4 mm AEC-Q200 Tray 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
227In Stock
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 125 Ohms 16 mm 28 mm 20 mm AEC-Q200 Tray 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
261On Order
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 131 Ohms 8 mm 16.5 mm 16 mm AEC-Q200 Tray 7E08 4911
Wurth Elektronik Ferrite Cable Cores WE-TEFA Toroidal EMI Suppress Ferrite
Datasheet
158Expected 3/27/2026
Min.: 1
Mult.: 1

WE-TEFA Round Cable Cores Solid 85 Ohms 10 mm 20 mm 10 mm AEC-Q200 Tray 7E08 4911