Amorphous Magnetic Cores For High Frequency Electronics

Amorphous magnetic cores allow smaller, lighter and more energy efficient designs in many high frequency applications for Invertors, UPS, ASD(Adjustable speed drives), and Power supplies (SMPS). Amorphous metals are produced in using a rapid solidification technology where molten metal is cast into thin solid ribbons by cooling at a rate of one millionC/second. Amorphous magnetic metal has high permeability due to no crystalline magnetic anisotropy.
Amorphous magnetic cores have superior magnetic characteristics, such as lower core loss, when compared with conventional crystalline magnetic materials. These cores can offer superior design alternative when uses as the core material in the following components:

Product Detail

Product Tags

AC Reactor | DC Reactor | PFC boost inductor: Under 6kW (Mircolite 100µ),  Over 6kW
Common mode chokes | MagAmp | Differential mode chokes / SMPS output inductor
Spike absorbing cores

Performance Characteristics

·High saturation magnetic induction intensity-reduce core volume,
·Rectangular structure - easy coil assembly
Core opening - excellent resistance to DC bias saturation
·Low loss - reduce temperature rise (1/5-1/10 of silicon steel)
·Good stability—can work at -50~130℃ for a long time

Technical advantage

Where typical ferrite cores can only operate up to a flux saturation level (Bsat) of 0.49 Tesla, amorphous metal cores can be operated at 1.56 Tesla. Combined with operating at permeability similar to high-end ferrites and the flexibility of manufacturing large cores sizes these cores can be an ideal solution for many of these components.




Reference value



Saturated induction density






4 Max



Curie Temperature




Curie Temperature





g/ cm3



(δ )






Stacking Factor




Amorphous alloys are formed by adding a certain amount of glass forming agent to the molten metal, and rapidly quenching and casting using a narrow ceramic nozzle under high temperature melting conditions. Amorphous alloys have the similar characteristics of glass structure, which not only make them have excellent mechanical properties, physical properties and chemical properties, but more importantly, the new technology of producing amorphous alloys using this rapid quenching method is less than the cold-rolled silicon steel sheet process. 6 to 8 processes can save energy consumption by 60% to 80%, which is an energy-saving, time-saving and efficient metallurgical method. Moreover, the amorphous alloy has low coercivity and high magnetic permeability, and its core loss is significantly lower than that of oriented cold-rolled silicon steel sheet, and its no-load loss can be reduced by about 75%. Therefore, the use of amorphous alloys instead of silicon steel sheets to manufacture transformer cores is one of the main means to save energy and reduce consumption in today's power grid equipment.

Amorphous Magnetic Cores For High Frequency Electronics (4)
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Parameter Curve

Amorphous Magnetic Cores For High Frequency Electronics Amorphous Magnetic Cores For High Frequency Electronics

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