Abstract: An electric component unit capable of keeping an operator from feeling a difference in force required for inserting a connection conductor into an electric component unit during insertion of plural connection conductors different in diameter. A terminal fitment includes a conductor holding section provided with four holding elements. Two of the holding elements are so arranged that distal portions thereof are opposite to each other with an end of the connection conductor being interposed therebetween and contacted with the end of the connection conductor. The remaining two of the holding elements are so arranged that distal portions thereof are positioned forwardly or rearwardly in a longitudinal direction of the connection conductor based on a position at which the two holding elements are contacted with the end of the connection conductor while being contacted with the end of the connection conductor and interposing the end of the connection conductor therebetween.

Abstract: A high-voltage variable resistor unit including a terminal connection structure capable of preventing upward movement or rotation of the terminal by simple construction. A terminal is provided with a connecting portion between a held portion and a lead wire connected portion. A terminal fixing portion of the insulating casing is provided adjacent to a terminal holding portion with a connecting portion receiving recess in which the connecting portion of the terminal is received. An insulating resin is charged in the connecting portion receiving recess and hardened. The walls surrounding the connecting portion receiving recess have a pair of grooves each formed on a pair of walls facing to a first linear connecting portion and a second linear connecting portion of the terminal.

Abstract: A high-voltage resistor unit capable of minimizing a variation in output voltage thereof. The resistor unit includes an output terminal member provided with a contact section connected, by only contacting, to an output electrode formed on a front surface of a circuit board. The electrode contacted with the constant section of the terminal member has a surface section covered with a resistive paint layer, of which a resistance value in a thickness direction thereof is set to be smaller than a resistance value of a resistance circuit pattern formed on the front surface of the circuit board which resistance value is determined in a thickness direction thereof.

Abstract: A high-voltage variable resistor unit including a variable resistance circuit board and a fixed resistance circuit board, and capable of being down-sized and exhibiting satisfactory dielectric strength. A variable resistance circuit board which is provided on a front surface thereof with a variable resistance circuit pattern is received in a board receiving chamber of an insulating casing. A lid member made of an insulating resin material is arranged so as to close an opening of the board receiving chamber while keeping a front surface thereof facing a rear surface of the variable resistance circuit board. A fixed resistance circuit board is fixed on a rear surface of the lid member while keeping a rear surface thereof facing the rear surface of the lid member. A space for charging an insulating resin material therein is defined between a circuit board and the rear surface of the lid member.