Crystalline Tape Wound Cores
- Technology
- Nickel iron tape wound cores
- Partner
- Magnetics Inc.
High permeability alloys of non-oriented nickel-iron or grain-oriented silicon-iron, used in technical applications, mainly at low frequency, but also up to 40kHz for thinnest tapes.
Each of these materials has unique properties making them perfect in applications such as reactors, static magnetic devices, current transformers, magnetometers, flux gates, MagAmps.
Magnetics Inc has the expertise and experience and is one of few organisations developing and producing these materials. Tapes are produced in gauges from 0.013mm to 0.104mm. Cores are wound and high temperature annealed to adjust magnetic properties. The cores are available with outside diameters ranging from 11.13mm to 76.2mm and come either uncased, in non-metallic or aluminium cases, or Epoxy coated.
Range features
A high level overview of what this range offers
- Choice of materials with different composition and hence different remanence, permeability, saturation induction
- Tape thickness 0.013 – 0.104mm (Magnesil 0.052 – 0.104mm)
- Standard core size from 11.1 x 9.5 x 3.2mm to 88.8 x 63.5 x 12.7mm (OD x ID x H)
- 80%Ni-Fe with almost zero magnetostriction
- Standard case materials nylon and aluminium, or Epoxy coated (only Magnesil)
- Special shapes and sizes can be customised on demand
Downloads
for Crystalline Tape Wound Cores
What’s in this range?
All the variants in the range and a comparison of what they offer
| Square orthonol | 48 Alloy | Square permalloy 80 | Round permalloy 80 | Supermalloy | Magnesil | |
|---|---|---|---|---|---|---|
Composition | 50% Ni-Fe | 50% Ni-Fe | 80% Ni-Fe | 80% Ni-Fe | 80% Ni-Fe | 3% Si-Fe |
Saturation induction BS [T] at room temperature | 1,4 – 1,6 | 1,1 – 1,4 | 0,66 – 0,82 | 0,66 – 0,82 | 0,66 – 0,82 | 1,5 – 1,8 |
Hysteresis loop shapes | Z | Rounded Z | Rounded Z | R | R | Z |
Initial permeability µi (for R-loop) | – | – | – | 20.000 – 50.000 | 40.000 – 100.000 | – |
Special properties | High squareness | Lower coercivity and losses than orthonol | Low losses among Z-loop cores | – | Very low losses, high permeability | High saturation, for high temp |
