Amorphous Cores
For PFC Chokes and Inductors
Amorphous cut cores are made from metallic glass materials without a crystalline structure (as seen in silicon steels, permalloys, orthonol, and nanocrystalline cores). The amorphous atomic structure results in much higher resistivity than what is exhibited by crystalline alloys; therefore, amorphous cut cores offer excellent frequency response and efficiency.
Key Characteristics
- Composition: Fe•Si•B
- Shapes: Cut Cores
- Flux Density (T): 1.56
Amorphous cut cores are a choice solution for high frequency, low loss applications such as uninterruptible power supplies (UPS), SMPS power factor correction (PFC) chokes, filter inductors, and high frequency power transformers and inductors. When compared to ferrite cores, amorphous cores provide a wider operational temperature range, much higher flux capacity, and significantly higher impedance at high frequencies. Amorphous cut cores are strong in both compression and tension. They resist fracture and corrosion.
Currently available in cut (C shape) cores. Toroids and split cores available upon request.
View Amorphous Material Property Curves including Permeability vs. Flux Density, Core Loss vs. Flux Density, and B-H Loop.
View Amorphous Technical Bulletin
Amorphous Part Number Identification
| Part Number | Cross Section cm2 |
Path Length cm |
D dim. mm |
E dim. mm |
F dim. mm |
|---|---|---|---|---|---|
| MACC0004 | 1.24 | 10.7 | 15.0 | 28.0 | 51.0 |
| MACC0006P3 | 1.6 | 12.8 | 20.0 | 31.0 | 53.0 |
| MACC0008 | 2.0 | 11.7 | 20.0 | 35.0 | 53.0 |
| MACC0010 | 1.8 | 15.4 | 20.0 | 35.5 | 63.0 |
| MACC016A | 2.3 | 15.1 | 25.0 | 35.5 | 62.5 |
| MACC0020Y | 2.8 | 16.2 | 30.0 | 35.5 | 73.0 |
| MACC0025 | 3.6 | 17.9 | 25.0 | 42.0 | 84.0 |
| MACC0032 | 3.5 | 17.5 | 30.0 | 41.0 | 82.0 |
| MACC0063 | 4.4 | 23.2 | 30.0 | 53.5 | 105.0 |
| MACC0125 | 6.1 | 26.7 | 35.0 | 63.5 | 122.0 |
| MACC0160 | 16.6 | 27.3 | 40.0 | 63.0 | 122.0 |
| MACC0320 | 9.5 | 30.5 | 50.0 | 79.0 | 131.0 |
| MACC1000 | 23.0 | 42.2 | 85.0 | 106.0 | 171.0 |