公开(公告)号：US20250029760A1

公开(公告)日：2025-01-23

申请号：US18755948

申请日：2024-06-27

Applicant: TDK CORPORATION

Inventor： Minwoo SONG ,  Setu TSUCHIDA ,  Shun KOSUGI ,  Takashi KADOYA ,  Takayuki ITO ,  Masaomi ENOKI ,  Hiroshi TAKAHASHI

IPC: H01F5/04 ,  H01F3/10 ,  H01F27/28 ,  H01F27/29

Abstract: A coil device includes a wire, a core, and a terminal fitting. The wire includes a winding portion and a lead-out portion drawn out from the winding portion. The core includes a shaft and a flange at one end of the shaft. The shaft has the winding portion wound around. The terminal fitting includes a mounting portion connectable to a mounting substrate, a wire connecting portion connected to the lead-out portion, and an intermediate portion connecting the mounting portion and the wire connecting portion. The mounting portion and the wire connecting portion are disposed over a mounting surface of the flange. The intermediate portion has a route extending over an end surface of the flange and a side surface of the flange to connect the mounting portion and the wire connecting portion.