We supply toroidal strip cores made of grain-orientated silicon steel in thicknesses of 0.10 – 0.30 mm. The toroidal strip cores are available in the following versions:
normal: For use with protective caps.
Reinforced with synthetic resin: To protect against the mechanical loads exerted by the copper winding.
coated with epoxy resin: Suitable for direct winding without further protection,
- temperature-resistant up to 140 °C,
- dielectric strength of 40-50 kV/mm
- Thickness 250 µm.
In order to fulfil the magnetic requirements, we recommend the following ratio as far as possible
Table of available sizes
| d [mm] | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 22 | 24 | 25 | 26 | 28 | 29 | 30 | 31 | |
| 33 | 35 | 36 | 37 | 38 | 39 | 40 | 42 | |
| 43 | 44 | 45 | 46 | 48 | 50 | 52 | 53 | |
| 54 | 55 | 56 | 57 | 58 | 60 | 61 | 64 | |
| 65 | 66 | 68 | 70 | 72 | 74 | 76 | 78 | |
| 79 | 80 | 85 | 87 | 88 | 90 | 92 | 95 | |
| 100 | 110 | 120 | 150 | 155 | 270 | 125 | 140 | |
| D [mm] | min. 25 – max. 340 | |||||||
| h [mm] | 10-13-15-18-19-20-22-25-28-30-32-35-38-40-45-50-60-70-75-80 | |||||||
