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

How To Order: Magnetics Tape Wound Cores

Amorphous Material

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
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