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Amorphous vs. Nanocrystalline Magnetic Cores: What's the Real Difference?
Learn the key differences between amorphous and nanocrystalline magnetic cores — from structure and performance to cost and applications. Expertly explained by DG Focus Technology Co., Ltd.
5/8/20242 min read
When it comes to choosing the right magnetic core material, amorphous and nanocrystalline alloys are two of the most advanced and trusted options. Both offer excellent soft magnetic properties, widely used across power electronics, renewable energy, automotive electronics, and high-precision measurement systems.
At DG Focus Technology Co., Ltd., we specialize in manufacturing and customizing both amorphous and nanocrystalline magnetic cores. With a focus on quality, innovation, and reliability since 2018, we help our customers select the best-fit materials for high-performance and energy-efficient designs.
What Sets Them Apart?
The biggest difference lies in their internal structure, which leads to different levels of magnetic performance.
Amorphous Magnetic Cores are made by rapid cooling of molten alloy, resulting in a non-crystalline (amorphous) structure. This leads to low core losses, high resistivity, and good performance at low to medium frequencies.
Nanocrystalline Magnetic Cores are heat-treated from amorphous ribbons to form ultra-fine grains (about 10nm) within the structure. This gives them very high permeability, ultra-low losses, and superior frequency response — ideal for compact and high-frequency applications.
Comparison at a Glance
Which One Should You Use?
Choose Amorphous Cores if your focus is on cost-effective, reliable magnetic performance in low to medium frequency applications — such as power transformers, energy meters, or EMI suppression.
Choose Nanocrystalline Cores when your design demands compact size, high frequency, and low loss — particularly in EV power systems, high-end inverters, or sensitive measurement equipment.
Why DG Focus Technology?
Founded in 2018, DG Focus Technology Co., Ltd. is a trusted expert in soft magnetic core solutions. We offer:
Custom core shapes: toroidal, rectangular, C-shaped, E-shaped, and more
Flexible finishing: epoxy coating, taping, varnish impregnation, precision cutting
Engineering support: deep industry know-how to help optimize your designs
Every product is backed by strict quality control and tailored to meet your performance needs — whether for industrial, automotive, or energy-related applications.
✅ Get in Touch
Want to know which material suits your application best?
Contact DG Focus Technology today — we’re ready to support your magnetic project with expert advice and high-quality core solutions.
