Core is based on Fe-Amorphous.
Core controle magnetic permeability by gap.
This core quite useful to the size and weight of the coil can make a large,current design.

Core is based on Fe-Amorphous.
Good point is low-leakage magnetic pass.There is no gap on magnetic path
Main application is for out-put coil of switching power supply.
《Main application》
・Out-put coil of switching power supply
・Normal mode coil for noise counter plan