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Core-type and shell-type transformers have structural differences but uniform core material demands. Laminated silicon steel is their preferred choice for optimal performance and cost-efficiency, with future trends favoring energy-saving materials like amorphous alloys while it remains mainstream for traditional transformers.

Cores are key components of transformers, inductors and other magnetic devices, directly determining their efficiency, size, cost and reliability. Ferrite cores and silicon steel cores are the most widely used in high-frequency power supplies, power distribution and EMI suppression. This article compares their differences in material properties, loss, pros, cons and applications to help people select cores quickly.

Discover the key differences between core-type and shell-type transformer cores — construction, efficiency, cooling, applications, and how to choose the right design for your project.