Non-reciprocal circuit device and communication apparatus
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakashi Kawanami, Takashi Hasegawa
Life of this patent
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Abstract
A non-reciprocal circuit device includes a lower metal case, a terminal resin case, a central-electrode assembly, an upper metal case, and a permanent magnet. The central-electrode assembly includes a ferrite to which a dc magnetic field is applied by the permanent magnet, and central electrodes disposed around the ferrite. The terminal resin case includes two sets of opposing side walls and a bottom wall, and cut surfaces formed when a lead frame is separated are provided in one set of side walls, respectively. Terminals for surface mounting are provided on another set of side walls which is different from the one set of side walls.
Claims16
A non-reciprocal circuit device comprising:
- a permanent magnet;
- a ferrite member provided with a DC magnetic field by the permanent magnet and a central electrode assembly having a plurality of central electrodes disposed around the ferrite member;
- a terminal resin case including the center electrode assembly, the terminal resin case including:
- a first side surface defining a cutting surface that is formed when the terminal resin case is separated from a lead;
- input-output and grounding terminals which are led out from a second side surface, different from the first side surface of the terminal resin case;
- and
- a metal case including the permanent magnet and the terminal resin case.
Dependencies are inferred from the claim text.