WE-TOF

Characteristics

  • Ferrite cores made of materials optimized for high-frequency attenuation
  • Designed for applications with large cable diameters or where multiple cable turns are needed, this ferrite series offers robust EMI suppression with extended mechanical compatibility
  • Available in a range of permeability values (μi = 380 to 1500) to ensure targeted suppression across critical frequency bands
  • Wide operating temperature range: –25 °C to +125 °C, ensuring stable performance in demanding environments

Applications

  • Wires
  • Coaxial cables
  • Wire-wrapping cables
  • Multiconductor wires
  • Cable e.g. of power supplies, data and gage signal lines

Products

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Data­sheet
Simu­lation
Downloads
Status
Ø Cable max. (mm)
Ø OD (mm)
Ø ID (mm)
L (mm)
Z @ 25 MHz
1 turn
(Ω)
Z @ 100 MHz
1 turn
(Ω)
Z @ 100 MHz
2 turns
(Ω)
Z @ 25 MHz
2 turns
(Ω)
Material
Design Kit
Alpha-Rack
Samples
WE-TOF
74270111
3 mm, 7.3 mm, 3.3 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 3 mm
Outer Diameter 7.3 mm
Inner Diameter 3.3 mm
Length 4.3 mm
Impedance @ 25 MHz 1 turn 32 Ω
Impedance @ 100 MHz 1 turn 48 Ω
Impedance @ 100 MHz 2 turns 151 Ω
Impedance @ 25 MHz 2 turns 123 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
742701712
4.5 mm, 9 mm, 5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 4.5 mm
Outer Diameter 9 mm
Inner Diameter 5 mm
Length 8 mm
Impedance @ 25 MHz 1 turn 34 Ω
Impedance @ 100 MHz 1 turn 56 Ω
Impedance @ 100 MHz 2 turns 203 Ω
Impedance @ 25 MHz 2 turns 134 Ω
Material 7 W 700 
Design Kit
Alpha-Rack
WE-TOF
742701121
4.6 mm, 9.5 mm, 5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 4.6 mm
Outer Diameter 9.5 mm
Inner Diameter 5 mm
Length 14.5 mm
Impedance @ 25 MHz 1 turn 75 Ω
Impedance @ 100 MHz 1 turn 109 Ω
Impedance @ 100 MHz 2 turns 370 Ω
Impedance @ 25 MHz 2 turns 195 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270113
4.6 mm, 11.5 mm, 5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 4.6 mm
Outer Diameter 11.5 mm
Inner Diameter 5 mm
Length 9 mm
Impedance @ 25 MHz 1 turn 62 Ω
Impedance @ 100 MHz 1 turn 91 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270112
4.6 mm, 9 mm, 5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 4.6 mm
Outer Diameter 9 mm
Inner Diameter 5 mm
Length 8 mm
Impedance @ 25 MHz 1 turn 33 Ω
Impedance @ 100 MHz 1 turn 63 Ω
Impedance @ 100 MHz 2 turns 203 Ω
Impedance @ 25 MHz 2 turns 134 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270161
4.7 mm, 10 mm, 5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 4.7 mm
Outer Diameter 10 mm
Inner Diameter 5 mm
Length 3.7 mm
Impedance @ 25 MHz 1 turn 21 Ω
Impedance @ 100 MHz 1 turn 36 Ω
Impedance @ 100 MHz 2 turns 136 Ω
Impedance @ 25 MHz 2 turns 115 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
74270176
4.7 mm, 10 mm, 5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 4.7 mm
Outer Diameter 10 mm
Inner Diameter 5 mm
Length 5 mm
Impedance @ 25 MHz 1 turn 25 Ω
Impedance @ 100 MHz 1 turn 44 Ω
Impedance @ 100 MHz 2 turns 170 Ω
Impedance @ 25 MHz 2 turns 105 Ω
Material 7 W 850 
Design Kit
Alpha-Rack
WE-TOF
74270106
6.5 mm, 13.2 mm, 7.1 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 6.5 mm
Outer Diameter 13.2 mm
Inner Diameter 7.1 mm
Length 12.7 mm
Impedance @ 25 MHz 1 turn 65 Ω
Impedance @ 100 MHz 1 turn 93 Ω
Impedance @ 100 MHz 2 turns 342 Ω
Impedance @ 25 MHz 2 turns 272 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
742701716
7.5 mm, 12.7 mm, 7.9 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 7.5 mm
Outer Diameter 12.7 mm
Inner Diameter 7.9 mm
Length 6.35 mm
Impedance @ 25 MHz 1 turn 22 Ω
Impedance @ 100 MHz 1 turn 42 Ω
Impedance @ 100 MHz 2 turns 175 Ω
Impedance @ 25 MHz 2 turns 91 Ω
Material 7 W 380 
Design Kit
Alpha-Rack
WE-TOF
7427010
7.6 mm, 16.5 mm, 8 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 7.6 mm
Outer Diameter 16.5 mm
Inner Diameter 8 mm
Length 13 mm
Impedance @ 25 MHz 1 turn 75 Ω
Impedance @ 100 MHz 1 turn 107 Ω
Impedance @ 100 MHz 2 turns 513 Ω
Impedance @ 25 MHz 2 turns 330 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
7427011
7.6 mm, 16.5 mm, 8 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 7.6 mm
Outer Diameter 16.5 mm
Inner Diameter 8 mm
Length 16 mm
Impedance @ 25 MHz 1 turn 95 Ω
Impedance @ 100 MHz 1 turn 134 Ω
Impedance @ 100 MHz 2 turns 574 Ω
Impedance @ 25 MHz 2 turns 395 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
742701707
9.5 mm, 20 mm, 10 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 9.5 mm
Outer Diameter 20 mm
Inner Diameter 10 mm
Length 10 mm
Impedance @ 25 MHz 1 turn 47 Ω
Impedance @ 100 MHz 1 turn 78 Ω
Impedance @ 100 MHz 2 turns 305 Ω
Impedance @ 25 MHz 2 turns 191 Ω
Material 7 W 850 
Design Kit
Alpha-Rack
WE-TOF
74270117
9.6 mm, 14 mm, 10 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 9.6 mm
Outer Diameter 14 mm
Inner Diameter 10 mm
Length 8 mm
Impedance @ 25 MHz 1 turn 21 Ω
Impedance @ 100 MHz 1 turn 43 Ω
Impedance @ 100 MHz 2 turns 343 Ω
Impedance @ 25 MHz 2 turns 215 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
7427018
9.6 mm, 18.6 mm, 10.2 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 9.6 mm
Outer Diameter 18.6 mm
Inner Diameter 10.2 mm
Length 6 mm
Impedance @ 25 MHz 1 turn 34 Ω
Impedance @ 100 MHz 1 turn 45 Ω
Impedance @ 100 MHz 2 turns 163 Ω
Impedance @ 25 MHz 2 turns 124 Ω
Material 4 W 1500 
Design Kit
Alpha-Rack
WE-TOF
74270182
10 mm, 18.6 mm, 10.2 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 10 mm
Outer Diameter 18.6 mm
Inner Diameter 10.2 mm
Length 10 mm
Impedance @ 25 MHz 1 turn 48 Ω
Impedance @ 100 MHz 1 turn 67 Ω
Impedance @ 100 MHz 2 turns 265 Ω
Impedance @ 25 MHz 2 turns 200 Ω
Material 4 W 1500 
Design Kit
Alpha-Rack
WE-TOF
74270181
10.3 mm, 17.5 mm, 10.7 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 10.3 mm
Outer Diameter 17.5 mm
Inner Diameter 10.7 mm
Length 12.7 mm
Impedance @ 25 MHz 1 turn 48 Ω
Impedance @ 100 MHz 1 turn 67 Ω
Impedance @ 100 MHz 2 turns 307 Ω
Impedance @ 25 MHz 2 turns 237 Ω
Material 4 W 1500 
Design Kit
Alpha-Rack
WE-TOF
74270121
10.5 mm, 19 mm, 11.5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 10.5 mm
Outer Diameter 19 mm
Inner Diameter 11.5 mm
Length 8 mm
Impedance @ 25 MHz 1 turn 33 Ω
Impedance @ 100 MHz 1 turn 54 Ω
Impedance @ 100 MHz 2 turns 70 Ω
Impedance @ 25 MHz 2 turns 40 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270110
11.5 mm, 16 mm, 12 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 11.5 mm
Outer Diameter 16 mm
Inner Diameter 12 mm
Length 16 mm
Impedance @ 25 MHz 1 turn 40 Ω
Impedance @ 100 MHz 1 turn 56 Ω
Impedance @ 100 MHz 2 turns 195 Ω
Impedance @ 25 MHz 2 turns 131 Ω
Material 4 W 1500 
Design Kit
Alpha-Rack
WE-TOF
7427012
11.8 mm, 23.5 mm, 12.6 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 11.8 mm
Outer Diameter 23.5 mm
Inner Diameter 12.6 mm
Length 14 mm
Impedance @ 25 MHz 1 turn 72 Ω
Impedance @ 100 MHz 1 turn 103 Ω
Impedance @ 100 MHz 2 turns 471 Ω
Impedance @ 25 MHz 2 turns 342 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270118
12.3 mm, 21.2 mm, 12.7 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 12.3 mm
Outer Diameter 21.2 mm
Inner Diameter 12.7 mm
Length 6 mm
Impedance @ 25 MHz 1 turn 23 Ω
Impedance @ 100 MHz 1 turn 48 Ω
Impedance @ 100 MHz 2 turns 170 Ω
Impedance @ 25 MHz 2 turns 100 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
74270120
12.5 mm, 21 mm, 13 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 12.5 mm
Outer Diameter 21 mm
Inner Diameter 13 mm
Length 12 mm
Impedance @ 25 MHz 1 turn 49 Ω
Impedance @ 100 MHz 1 turn 73 Ω
Impedance @ 100 MHz 2 turns 290 Ω
Impedance @ 25 MHz 2 turns 174 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270119
13.3 mm, 22.5 mm, 13.8 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 13.3 mm
Outer Diameter 22.5 mm
Inner Diameter 13.8 mm
Length 6.4 mm
Impedance @ 25 MHz 1 turn 24 Ω
Impedance @ 100 MHz 1 turn 48 Ω
Impedance @ 100 MHz 2 turns 398 Ω
Impedance @ 25 MHz 2 turns 187 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
742701703
14.5 mm, 25 mm, 15 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 14.5 mm
Outer Diameter 25 mm
Inner Diameter 15 mm
Length 12 mm
Impedance @ 25 MHz 1 turn 38 Ω
Impedance @ 100 MHz 1 turn 70 Ω
Impedance @ 100 MHz 2 turns 379 Ω
Impedance @ 25 MHz 2 turns 195 Ω
Material 7 W 380 
Design Kit
Alpha-Rack
WE-TOF
7427013
15.5 mm, 28 mm, 16 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 15.5 mm
Outer Diameter 28 mm
Inner Diameter 16 mm
Length 13 mm
Impedance @ 25 MHz 1 turn 45 Ω
Impedance @ 100 MHz 1 turn 89 Ω
Impedance @ 100 MHz 2 turns 428 Ω
Impedance @ 25 MHz 2 turns 295 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
7427014
15.5 mm, 28 mm, 16 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 15.5 mm
Outer Diameter 28 mm
Inner Diameter 16 mm
Length 20 mm
Impedance @ 25 MHz 1 turn 74 Ω
Impedance @ 100 MHz 1 turn 132 Ω
Impedance @ 100 MHz 2 turns 550 Ω
Impedance @ 25 MHz 2 turns 411 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
742701110
17.5 mm, 28 mm, 18 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 17.5 mm
Outer Diameter 28 mm
Inner Diameter 18 mm
Length 7.5 mm
Impedance @ 25 MHz 1 turn 26 Ω
Impedance @ 100 MHz 1 turn 54 Ω
Impedance @ 100 MHz 2 turns 330 Ω
Impedance @ 25 MHz 2 turns 205 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
742701111
18.5 mm, 29.5 mm, 19 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 18.5 mm
Outer Diameter 29.5 mm
Inner Diameter 19 mm
Length 7.7 mm
Impedance @ 25 MHz 1 turn 28 Ω
Impedance @ 100 MHz 1 turn 52 Ω
Impedance @ 100 MHz 2 turns 335 Ω
Impedance @ 25 MHz 2 turns 208 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
74270104
18.5 mm, 31.7 mm, 19 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 18.5 mm
Outer Diameter 31.7 mm
Inner Diameter 19 mm
Length 8 mm
Impedance @ 25 MHz 1 turn 35 Ω
Impedance @ 100 MHz 1 turn 58 Ω
Impedance @ 100 MHz 2 turns 251 Ω
Impedance @ 25 MHz 2 turns 133 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270115
18.5 mm, 31.5 mm, 19 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 18.5 mm
Outer Diameter 31.5 mm
Inner Diameter 19 mm
Length 16 mm
Impedance @ 25 MHz 1 turn 56 Ω
Impedance @ 100 MHz 1 turn 102 Ω
Impedance @ 100 MHz 2 turns 350 Ω
Impedance @ 25 MHz 2 turns 221 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
74270151
20.4 mm, 34.6 mm, 20.8 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 20.4 mm
Outer Diameter 34.6 mm
Inner Diameter 20.8 mm
Length 12.7 mm
Impedance @ 25 MHz 1 turn 52 Ω
Impedance @ 100 MHz 1 turn 81 Ω
Impedance @ 100 MHz 2 turns 416 Ω
Impedance @ 25 MHz 2 turns 207 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
742701112
24.8 mm, 35.6 mm, 25.4 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 24.8 mm
Outer Diameter 35.6 mm
Inner Diameter 25.4 mm
Length 7.5 mm
Impedance @ 25 MHz 1 turn 21 Ω
Impedance @ 100 MHz 1 turn 45 Ω
Impedance @ 100 MHz 2 turns 350 Ω
Impedance @ 25 MHz 2 turns 165 Ω
Material 3 W 800 
Design Kit
Alpha-Rack
WE-TOF
7427015
26.9 mm, 40.6 mm, 27.4 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 26.9 mm
Outer Diameter 40.6 mm
Inner Diameter 27.4 mm
Length 15 mm
Impedance @ 25 MHz 1 turn 50 Ω
Impedance @ 100 MHz 1 turn 82 Ω
Impedance @ 100 MHz 2 turns 399 Ω
Impedance @ 25 MHz 2 turns 217 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270097
33.4 mm, 61 mm, 35.5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 33.4 mm
Outer Diameter 61 mm
Inner Diameter 35.5 mm
Length 12.7 mm
Impedance @ 25 MHz 1 turn 55 Ω
Impedance @ 100 MHz 1 turn 92 Ω
Impedance @ 100 MHz 2 turns 680 Ω
Impedance @ 25 MHz 2 turns 323 Ω
Material 4 W 620 
Design Kit
Alpha-Rack
WE-TOF
74270198
33.4 mm, 61 mm, 35.5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 33.4 mm
Outer Diameter 61 mm
Inner Diameter 35.5 mm
Length 12.7 mm
Impedance @ 25 MHz 1 turn 65 Ω
Impedance @ 100 MHz 1 turn 97 Ω
Impedance @ 100 MHz 2 turns 400 Ω
Impedance @ 25 MHz 2 turns 250 Ω
Material 4 W 1500 
Design Kit
Alpha-Rack
WE-TOF
74270191
33.4 mm, 61 mm, 35.5 mm
Simu­lation
Status Active i | Production is active. Expected lifetime: >10 years.
Cable Diameter Max. 33.4 mm
Outer Diameter 61 mm
Inner Diameter 35.5 mm
Length 20 mm
Impedance @ 25 MHz 1 turn 97 Ω
Impedance @ 100 MHz 1 turn 156 Ω
Impedance @ 100 MHz 2 turns 650 Ω
Impedance @ 25 MHz 2 turns 390 Ω
Material 4 W 620 
Design Kit
Alpha-Rack

Assortments

Articles from this product series can be found in the following assortments: