TDK puts HDD-head manufacturing know-how to work in power components
¥2.505tnNet sales for the year ended March 2026
54.7%Energy Application Products share of group sales
~90%Overseas sales ratio
What emerges
See the company through the numbers →At TDK, thin-film process technology used to make HDD heads also serves thin-film inductors in power circuits. Energy Application Products accounted for 54.7% of ¥2.505 trillion in sales for the year ended March 2026; Passive Components, Sensors and Magnetic Applications remain substantial, and roughly 90% of sales are overseas. Applications spread from cassettes into multilayer components and batteries, while acquisitions also broadened the portfolio. TDK still calls its approach “Evolve the Ferrite Tree.”