Abstract: A surge absorption circuit according to an embodiment comprises (a) an input terminal, (b) an output terminal, (c) a common terminal, (d) a mutual inductive element having a first inductive element and a second inductive element which are electromagnetically coupled to each other so as to increase each inductance, wherein one terminal of the first inductive element is connected to the input terminal, one terminal of the second inductive element is connected to the output terminal, and the other terminal of the first inductive element and the other terminal of the second inductive element are connected to each other, and (e) a surge absorption element having one terminal connected to the other terminal of the first inductive element and the other terminal of the second inductive element and the other terminal connected to the common terminal.

Abstract: A composite electronic device includes first and second magnetic substrates, and a functional layer sandwiched between these magnetic substrates, and the functional layer is configured by a common-mode filter layer and a ESD protection element layer. An electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. The common-mode filter layer includes a first spiral conductor formed on an insulation layer, and a second spiral conductor formed on an insulation layer. DC resistance of a common mode filter is equal to or higher than 0.5? and equal to or lower than 5?, and an electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. A width W and a length L of the first and second spiral conductors satisfy a relational equation expressed by ?(L/W)<(7.6651?fc)/0.1385.

Abstract: A filter circuit has first and second varistors, a resistance, an input terminal, an output terminal, and a ground terminal. The resistance is connected between the first and second varistors. The input terminal is connected to a junction between the first varistor and resistance through a first coil. The output terminal is connected to a junction between the second varistor and resistance through a second coil. The ground terminal is connected to a side of the first varistor opposite from the resistance and a side of the second varistor opposite from the resistance.

Abstract: A surge absorbing circuit has a substrate on which a first conductor, a second conductor, and a third conductor are placed, and a surge absorber having a first terminal and a second terminal. The first conductor and the second conductor are mutually coupled in a polarity-reversed relation. One end of the first conductor is connected to one end of the second conductor. The third conductor is electrically isolated from the first conductor and the second conductor on the substrate. The first terminal of the surge absorber is connected to a connection portion between the first conductor and the second conductor. The second terminal of the surge absorber is connected to the third conductor.

Abstract: A surge absorption circuit in accordance with an embodiment comprises: a pair of input terminals; a pair of output terminals; a first inductor device connecting one of the pair of input terminals and one of the pair of output terminals to each other; a second inductor device connecting the other of the pair of input terminals and the other of the pair of output terminals to each other; a first surge absorption part having a first surge absorbing device and connected in series between the one of the pair of input terminals and the other of the pair of output terminals; and a second surge absorption part having a second surge absorbing device and connected in series between the other of the pair of input terminals and the one of the pair of output terminals.

Abstract: An object of the present invention is to provide a small surge absorption element that exhibits superior impedance matching even for high-speed signals and a surge absorption circuit. The surge absorption element comprises first and second inductor sections and first and second surge absorption sections. The first inductor section comprises first and second coils and the second inductor section comprises third and fourth coils. By suitably setting the coupling coefficients between the respective coils and the induction coefficients of the first to fourth coils, image impedance with an even frequency characteristic can be implemented over a wide area. Further, because the first to fourth coils have a positive magnetically coupled state with respect to one another, the induction coefficients of the first to fourth coils can be reduced in comparison with a case where the first to fourth coils are not afforded a positive magnetically coupled state.

Abstract: A surge absorber has a first terminal electrode, a second terminal electrode, a third terminal electrode, an inductor portion, a surge absorbing portion, and a capacitor portion. The inductor portion has a first internal conductor and a second internal conductor mutually coupled in a polarity-reversed relation. One end of the first internal conductor is connected to the first terminal electrode. One end of the second internal conductor is connected to the second terminal electrode. The other end of the first internal conductor is connected to the other end of the second internal conductor. The surge absorbing portion has a first internal electrode connected to a connection point between the first internal conductor and the second internal conductor, and a second internal electrode connected to the third terminal electrode. The capacitor portion has a capacitance component connected between the first terminal electrode and the second terminal electrode.

Abstract: A connector which can reduce electrostatic surges without deteriorating high-speed signals is provided. The connector in accordance with the first embodiment of the present invention comprises a first terminal, a second terminal connected to the first terminal, and a surge absorbing circuit provided between the first and second terminals. The surge absorbing circuit comprises (a) a first inductor having one end connected to the first terminal; (b) a second inductor, electromagnetically coupled to the first inductor, having one end connected to the other end of the first inductor and the other end connected to the second terminal; and (c) a surge absorbing element having one end connected to the other end of the first inductor and the one end of the second inductor and the other end connected to a ground terminal.

Abstract: Provided is a program for causing a computer to execute the steps of: sending a request including execution environment identification information for identifying its program execution environment to a predetermined server through a network; receiving a list including installation candidates which can be installed under the program execution environment identified by the execution environment identification information from the predetermined server through the network; selecting an installation candidate from the list according to a predetermined condition; and installing the selected installation candidate.

Abstract: Provided is a program for causing a computer to execute the steps of: sending a request including execution environment identification information for identifying its program execution environment to a predetermined server through a network; receiving a list including installation candidates which can be installed under the program execution environment identified by the execution environment identification information from the predetermined server through the network; selecting an installation candidate from the list according to a predetermined condition; and installing the selected installation candidate.

Abstract: A surge absorption circuit according to an embodiment comprises (a) an input terminal, (b) an output terminal, (c) a common terminal, (d) a mutual inductive element having a first inductive element and a second inductive element which are electromagnetically coupled to each other so as to increase each inductance, wherein one terminal of the first inductive element is connected to the input terminal, one terminal of the second inductive element is connected to the output terminal, and the other terminal of the first inductive element and the other terminal of the second inductive element are connected to each other, and (e) a surge absorption element having one terminal connected to the other terminal of the first inductive element and the other terminal of the second inductive element and the other terminal connected to the common terminal.

Abstract: A surge absorber has a first terminal electrode, a second terminal electrode, a third terminal electrode, an inductor portion, a surge absorbing portion, and a resistor portion. The inductor portion has a first internal conductor and a second internal conductor mutually coupled in a polarity-reversed relation. One end of the first internal conductor is connected to the first terminal electrode. One end of the second internal conductor is connected to the second terminal electrode. The other end of the first internal conductor is connected to the other end of the second internal conductor. The surge absorbing portion has a first internal electrode and a second internal electrode. The first internal electrode is connected to the other end of the first internal conductor and to the other end of the second internal conductor. The second internal electrode is connected to the third terminal electrode.

Abstract: A surge absorption circuit according to an embodiment comprises (a) an input terminal, (b) an output terminal, (c) a common terminal, (d) a mutual inductive element having a first inductive element and a second inductive element which are electromagnetically coupled to each other so as to increase each inductance, wherein one terminal of the first inductive element is connected to the input terminal, one terminal of the second inductive element is connected to the output terminal, and the other terminal of the first inductive element and the other terminal of the second inductive element are connected to each other, and (e) a surge absorption element having one terminal connected to the other terminal of the first inductive element and the other terminal of the second inductive element and the other terminal connected to the common terminal.

Abstract: A surge absorption circuit of one embodiment comprises an input terminal; an output terminal; a common terminal; a first surge absorption element and a second surge absorption element which are connected in series between the input terminal and the output terminal; a first inductive element provided in parallel to the first surge absorption element and the second surge absorption element, and connected to the input terminal and the output terminal; a second inductive element connected to a connection point of the first surge absorption element and the second surge absorption element and connected to the common terminal.

Abstract: A filter circuit has first and second varistors, a resistance, an input terminal, an output terminal, and a ground terminal. The resistance is connected between the first and second varistors. The input terminal is connected to a junction between the first varistor and resistance through a first coil. The output terminal is connected to a junction between the second varistor and resistance through a second coil. The ground terminal is connected to a side of the first varistor opposite from the resistance and a side of the second varistor opposite from the resistance.

Abstract: A connector which can reduce electrostatic surges without deteriorating high-speed signals is provided. The connector in accordance with the first embodiment of the present invention comprises a first terminal, a second terminal connected to the first terminal, and a surge absorbing circuit provided between the first and second terminals. The surge absorbing circuit comprises (a) a first inductor having one end connected to the first terminal; (b) a second inductor, electromagnetically coupled to the first inductor, having one end connected to the other end of the first inductor and the other end connected to the second terminal; and (c) a surge absorbing element having one end connected to the other end of the first inductor and the one end of the second inductor and the other end connected to a ground terminal.

Abstract: A surge absorber has a first terminal electrode, a second terminal electrode, a third terminal electrode, an inductor portion, a surge absorbing portion, and a resistor portion. The inductor portion has a first internal conductor and a second internal conductor mutually coupled in a polarity-reversed relation. One end of the first internal conductor is connected to the first terminal electrode. One end of the second internal conductor is connected to the second terminal electrode. The other end of the first internal conductor is connected to the other end of the second internal conductor. The surge absorbing portion has a first internal electrode and a second internal electrode. The first internal electrode is connected to the other end of the first internal conductor and to the other end of the second internal conductor. The second internal electrode is connected to the third terminal electrode.

Abstract: An object of the present invention is to provide a small surge absorption element that exhibits superior impedance matching even for high-speed signals and a surge absorption circuit. The surge absorption element comprises first and second inductor sections and first and second surge absorption sections. The first inductor section comprises first and second coils and the second inductor section comprises third and fourth coils. By suitably setting the coupling coefficients between the respective coils and the induction coefficients of the first to fourth coils, image impedance with an even frequency characteristic can be implemented over a wide area. Further, because the first to fourth coils have a positive magnetically coupled state with respect to one another, the induction coefficients of the first to fourth coils can be reduced in comparison with a case where the first to fourth coils are not afforded a positive magnetically coupled state.

Abstract: A surge absorbing circuit has a substrate on which a first conductor, a second conductor, and a third conductor are placed, and a surge absorber having a first terminal and a second terminal. The first conductor and the second conductor are mutually coupled in a polarity-reversed relation. One end of the first conductor is connected to one end of the second conductor. The third conductor is electrically isolated from the first conductor and the second conductor on the substrate. The first terminal of the surge absorber is connected to a connection portion between the first conductor and the second conductor. The second terminal of the surge absorber is connected to the third conductor.

Abstract: A surge absorber has a first terminal electrode, a second terminal electrode, a third terminal electrode, an inductor portion, a surge absorbing portion, and a capacitor portion. The inductor portion has a first internal conductor and a second internal conductor mutually coupled in a polarity-reversed relation. One end of the first internal conductor is connected to the first terminal electrode. One end of the second internal conductor is connected to the second terminal electrode. The other end of the first internal conductor is connected to the other end of the second internal conductor. The surge absorbing portion has a first internal electrode connected to a connection point between the first internal conductor and the second internal conductor, and a second internal electrode connected to the third terminal electrode. The capacitor portion has a capacitance component connected between the first terminal electrode and the second terminal electrode.