A coil device of solenoid type includes a coil portion having a bobbin and a conductive wire wound around the bobbin, a housing for accommodating the coil portion, and at least one fastener for fastening the bobbin and the housing. The conductive wire includes a plurality of extending portions extending along a wound wire direction on the bobbin and having gaps in a winding axis direction. The fastener is provided between the plurality of extending portions and is obliquely disposed with respect to a plane orthogonal to the winding axis direction.

An ignition coil has a core with a longitudinal axis, a secondary winding extending around the core, a sleeve extending around the core, a primary winding wrapped around the sleeve, and a controller connected to the primary winding so as to oscillate alternating current to said primary winding. The secondary winding has a high-voltage end and a low-voltage end. The primary winding is in spaced longitudinal relationship from the secondary winding. Specifically, the primary winding is located longitudinally away from the high-voltage end of the secondary winding. A bobbin is positioned over and around the core. The secondary winding is wrapped around at least a portion of the bobbin.

An electronic component includes a magnetic circuit, two electrical conductors each having a portion arranged around one and the same part of the magnetic circuit, each of the portions forming a winding between a first and a second end, these two windings being inductively coupled to one another via the magnetic circuit. A support of the two electrical windings is arranged between said electrical conductors and the portion of the magnetic circuit and includes a wall around which the electrical windings are arranged, and three flanges offset along the longitudinal axis of the support so that one of the electrical windings is arranged between the first and the second flange and that the other of the electrical windings is arranged between the second and the third flange, At least one step is made in the height of the first flange to locally reduce the height of the first flange.