Copper-Iron Co-Fired Power Inductors — monolithic construction, minimal loss

What is a co-fired inductor?

A co-fired (copper-iron) inductor is manufactured by forming the copper winding and the iron-based magnetic powder body together, then sintering them in a single high-temperature process. The result is one monolithic part with no bobbin, no adhesive layer and no assembly seam.

Why it matters for high-current rails

• Lowest DCR: an uninterrupted copper path means conduction losses stay low even at 70+ A
• Soft saturation: inductance rolls off gradually near Isat instead of collapsing — safer for transient-heavy loads like GPU core rails
• Thermal path: the monolithic body conducts heat away from the winding more effectively than wound-and-glued assemblies
• Mechanical robustness: no wire movement, no buzzing, excellent vibration tolerance for automotive use

Series overview

Our co-fired platform covers compact SMD footprints for board-level DC-DC stages through high-current parts for AI server VRM. Custom inductance values, heights and terminal configurations are engineered to order.