Iron powder as a core
material has been widely used in RF applications for years.
The distributed air gap properties inherit in iron powder
cores also make them extremely well-suited for a variety of energy storage
inductor applications. Iron powder is a cost-effective design
alternative to molypermalloy powder (MPP), high flux, or sendust cores.
It can also be used in place of ferrites and iron-alloy laminations requiring
a gap.