Patent ID: 11972887
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 32:
33. An inductor component comprising:
a core that includes a substantially column-shaped shaft part and a pair of support parts at both ends of the shaft part;
terminal electrodes that are respectively provided on the pair of support parts; and
a wire that is wound around the shaft part in a single-layer winding and has end portions that are respectively connected to the terminal electrodes on the pair of support parts, a diameter of a conductive wire of the wire is 14 μm, and a number of turns of the wire wound around the shaft part is 21 turns;
wherein the inductor component exhibits an impedance value of 2100Ω or higher for an input signal having a frequency of 500 MHz,
a width that includes the terminal electrodes in a direction parallel to a circuit board on which the inductor component is mounted using the terminal electrodes, among directions perpendicular to a first direction in which the shaft part extends, is 0.30 mm or less,
a cross-sectional area of the shaft part is 55% of a cross-sectional area of the support parts,
the inductor component exhibits an inductance value of 680 nH,
the inductor component has a self resonant frequency of 900 MHz or higher,
an inductance value per unit volume of the shaft part is 11500 nH/mm3 or higher,
the terminal electrodes include bottom surface electrode parts formed on bottom surfaces of the support parts and end surface electrode parts formed on end surfaces of the support parts so as to be continuous with the bottom surface electrode parts,
in each end surface electrode part, a center portion, which is at a center of the end surface in a width direction, is taller than end portions, which are at ends of the end surface in the width direction,
an upper edge of each end surface electrode part is substantially arc-shaped in an upwardly convex manner, and
in each end surface electrode part, a ratio of a height of the center portion, which is at the center of the end surface in the width direction, to a height of the end portions, which are at the ends of the end surface in the width direction, is 1.2 or higher.