A passive component including a dielectric substrate comprising a plurality of stacked dielectric layers, a plurality of internal electrodes serving as a passive circuit formed in the dielectric substrate, and a plurality of terminals including an input terminal and an output terminal and a plurality of shield terminals (52a to 52d), wherein all of the input and output terminals (48, 50) and the plurality of shield terminals (52a to 52d) are provided only on a lower surface of said dielectric substrate, among said plurality of internal electrodes, internal electrodes corresponding to said input and output terminals are electrically connected to each other through a plurality of first connecting via holes formed in stacked dielectric layers of said dielectric substrate in proximity to first and second side surfaces of the dielectric substrate facing each other, and among said plurality of internal electrodes, internal electrodes corresponding to the plurality of shield terminals are electrically connected to each other through a plurality of second connecting via holes formed in stacked dielectric layers of said dielectric substrate in proximity of third and fourth side surfaces of the dielectric substrate facing each other, said input and output terminals and shield terminals are formed inside said dielectric substrate, each of said plurality of terminals being formed by a via hole for terminals extending outwardly, and a diameter of said via hole for terminals is greater than those of said first and second connecting via holes, wherein said passive circuit comprises at least one resonator, said at least one resonator comprising two internal electrodes formed in said dielectric substrate and a via hole formed in said dielectric substrate and connecting the two internal electrodes, one of the two internal electrodes forming a short-circuiting end of the at least one resonator, the other one of the two internal electrodes forming an open end of the at least one resonator. among said plurality of internal electrodes, internal electrodes corresponding to said input and output terminals are electrically connected to each other through a plurality of first connecting via holes formed in stacked dielectric layers of said dielectric substrate in proximity to first and second side surfaces of the dielectric substrate facing each other, and among said plurality of internal electrodes, internal electrodes corresponding to the plurality of shield terminals are electrically connected to each other through a plurality of second connecting via holes formed in stacked dielectric layers of said dielectric substrate in proximity of third and fourth side surfaces of the dielectric substrate facing each other, said input and output terminals and shield terminals are formed inside said dielectric substrate, each of said plurality of terminals being formed by a via hole for terminals extending outwardly, and a diameter of said via hole for terminals is greater than those of said first and second connecting via holes, wherein said passive circuit comprises at least one resonator, said at least one resonator comprising two internal electrodes formed in said dielectric substrate and a via hole formed in said dielectric substrate and connecting the two internal electrodes, one of the two internal electrodes forming a short-circuiting end of the at least one resonator, the other one of the two internal electrodes forming an open end of the at least one resonator.