FERRITE CORE AND CHOKE

PROBLEM TO BE SOLVED: To provide a ferrite core and a choke capable of suppressing magnetic saturation by a power supply current and preventing the decline of impedance characteristics.SOLUTION: A ferrite core 1 includes a plurality of through-holes 9,11,13,15,17 whose axial directions are parallel to each other, and the plurality of through-holes 9,11,13,15,17 are arranged such that the periphery of one through-hole 9 is surrounded by the other through-holes 11,13,15,17 in the view from the axial direction. Also, a choke 29 includes the ferrite core 1 and one cable 31 successively inserted to the plurality of through-holes 9,11,13,15,17, and the route of the cable 31 is the route alternately repeating a route X from one side to the other side of the ferrite core 1 through the through-holes 9,11,13,15,17 and a route Y returning from the other side to the one side of the ferrite core 1 through the outer side of the ferrite core 1.