An electrical product including: an electrical component; a first power supply member and a second power supply member; and an insulating plate provided between the first power supply member and the second power supply member. The first power supply member is formed with a fixing hole which penetrates the first power supply member. The insulating plate is formed with a protrusion inserted into the fixing hole. The product is manufactured by preparing a jig with a recessed hole; placing the first power supply member on the jig; placing the insulating plate on the first power supply member so that the protrusion penetrates the fixing hole and the recessed hole.

According to one embodiment, an electronic device includes a power-supply voltage input terminal, a first capacitor, and a second capacitor. The first capacitor has a fixed capacitance. The second capacitor has a variable capacitance. The first capacitor and the second capacitor are connected in parallel to the power-supply voltage input terminal.

A capacitor having improved linear properties is provided. The capacitor is compatible with manufacturing processes of components which function using BAW. The capacitor comprises a first and a second electrode (E1, E2) in a first electrically conductive layer and a third electrode (E3) in a second electric layer. A dielectric layer (DL) is arranged between the electrically conductive layers. The first electrode (E1) and the second electrode (E2) are the terminal electrodes of the capacitor.

A capacitor having improved linear properties is provided. The capacitor is compatible with manufacturing processes of components which function using BAW. The capacitor comprises a first and a second electrode (E1, E2) in a first electrically conductive layer and a third electrode (E3) in a second electric layer. A dielectric layer (DL) is arranged between the electrically conductive layers. The first electrode (E1) and the second electrode (E2) are the terminal electrodes of the capacitor.

A variable filter circuit includes a serial arm connected between ports (P1-P2), a parallel arm having a resonator connected in series between ports (P1-P3), and another parallel arm having another resonator connected in series between ports (P2-P3). The serial arm includes a capacitor connected between the ports (P1-P2), and the parallel arms include variable capacitances connected in series to the resonators.

A variable filter circuit includes a serial arm connected between ports (P1-P2), a parallel arm having a resonator connected in series between ports (P1-P3), and another parallel arm having another resonator connected in series between ports (P2-P3). The serial arm includes a capacitor connected between the ports (P1-P2), and the parallel arms include variable capacitances connected in series to the resonators.

A capacitor circuit includes a first capacitor bank and a second capacitor bank. The first capacitor bank includes p switch-capacitor circuits connected to each other in parallel, where p is a natural number of 2 or more, wherein at least two switch-capacitor circuits among the p switch-capacitor circuits have mutually different capacitance values based on a first weight. The second capacitor bank includes q switch-capacitor circuits connected to each other in parallel, where q is a natural number greater than p, wherein at least two of the q switch-capacitor circuits have mutually different capacitance values based on a second weight different from the first weight.

A voltage division device includes a core region with a capacitor arrangement arranged in the core region and an electrical resistor arranged in the core region. A first electrode of the capacitor arrangement has a coupling member for connection with a voltage-carrying element, and a second electrode of the capacitor arrangement has a grounding member for connection with a grounding element. The first electrode and the second electrode are connected in an electrically conductive manner via the electrical resistor. The first electrode and the second electrode include multiple electrically conductive, substantially finger-shaped or rod-shaped modulation elements. arrangement of such a voltage division device on a connecting part of switchgear of a power grid is further provided.

There has been a problem of generating anti-resonance between a three-terminal capacitor and a capacitor when the three-terminal capacitor and the capacitor are mounted. In order to solve the problem, this electronic circuit includes: a capacitor and a three-terminal capacitor, which are connected to a power supply terminal of a circuit component, and a power supply, and which are connected in parallel to each other between the power supply and ground; and a resistor that is connected in series between the ground and a ground terminal of the three-terminal capacitor and/or the capacitor.

There has been a problem of generating anti-resonance between a three-terminal capacitor and a capacitor when the three-terminal capacitor and the capacitor are mounted. In order to solve the problem, this electronic circuit includes: a capacitor and a three-terminal capacitor, which are connected to a power supply terminal of a circuit component, and a power supply, and which are connected in parallel to each other between the power supply and ground; and a resistor that is connected in series between the ground and a ground terminal of the three-terminal capacitor and/or the capacitor.