Coil device

The invention provides a coil device which can be reduced in height, has a small installation area of a housing, and has excellent heat dissipation performance. A coil device according to the present disclosure includes: a device body having a bobbin and a coil portion of a winding wound around the bobbin; a terminal block on which a lead wire part led out from a winding wire of the coil part is arranged; and a housing capable of accommodating the device body. The housing has a support arm extending to the outside of the housing, and the terminal block is held by the support arm. 本公开提供一种能够低高度化，且壳体的设置面积小，而且散热性优异的线圈装置。本公开的线圈装置具有：装置主体，其具有线轴和卷绕于线轴的绕线的线圈部；端子台，其配置有从线圈部的绕线引出的引线部；以及壳体，其能够容纳装置主体。壳体具有向壳体的外侧延伸的支承臂，端子台保持于支承臂。