Fe-Amorphous Cores
- Technology
- Amorphous cores
- Partner
- Acal BFi kOr
kOr 156 products are made of an iron-based amorphous ribbon material which has been developed as a contemporary replacement for electrical steel (transformer plates). Low losses compared with steel laminations make components highly efficient in both purchasing and operational costs for low-frequency applications. Even mid-frequency applications with small ripples. With our expertise and in-depth technical knowledge, we can offer standard cut cores and a broad variety of customised shapes and finishing options for your application needs.
Range features
A high level overview of what this range offers
- Low losses compared with silicon steel
- High BS (1,56 T) – good linearity and frequency characteristics
- Effective permeability (hence: AL) and DC-tolerance adjustable with gaps
- Multi-cuts possible
- Applicable ideally for transformers up to about 5kHz
- Standard size cut cores match perfectly to standard bobbins
- Size and shape adjustable to space limitations
- Custom sizes possible according to ribbon dimensions
What’s in this range?
All the variants in the range and a comparison of what they offer
| Parameter | Symbol | Unit | Value | |
|---|---|---|---|---|
Initial permeability | μi | – | 3000 – 15 000, 1500 – 5000 | In protection case 25°C, Impregnated 25°C |
Saturation flux density | Bsat | mT | 1560, 1470 | H > 3000 mA/cm 25°C, H > 3000 mA/cm 100°C |
Curie temperature | Tc | °C | 400 | – |
Resistance | – | μΩm | 1,3 | – |
Density | d | g/ cm3 | 7,18 | – |
Saturation magnetostriction | λS | ppm | 27 | – |
Chemical composition | at% | ~Fe80Si7B13 | – | |
Tape thickness | d | µm | 25 | – |
Tape width | b | mm | 5-130 | – |
Filling factor (stacking factor) | FF | % | >85, >80 | b ≤ 25mm, b ≤ 25mm |
