A resistor contains a resistance body and a pair of electrodes (a first electrode body and a second electrode body), wherein end surfaces of the resistance body are respectively abutted to and bonded to end surfaces of the electrodes (a first electrode body and a second electrode body), the electrodes (a first electrode body and a second electrode body) each includes a main body portion and a leg portion, the leg portion protruding from the main body portion in the mounting surface of the resister, and a length dimension of the resistor is equal to or shorter than 3.2 mm.

A resistor contains a resistance body and a pair of electrodes (a first electrode body and a second electrode body), wherein end surfaces of the resistance body are respectively abutted to and bonded to end surfaces of the electrodes (a first electrode body and a second electrode body), the electrodes (a first electrode body and a second electrode body) each includes a main body portion and a leg portion, the leg portion protruding from the main body portion in the mounting surface of the resister, and a length dimension of the resistor is equal to or shorter than 3.2 mm.

A resistor is provided with a resistance body and a pair of electrodes connected to the resistance body (a first electrode body, a second electrode body), the resistance body being arranged so as to be at least separated away from a substrate board (a circuit board) when mounted on the substrate board (the circuit board), wherein the resistor has the oxide film on at least one of the resistance body and each of the electrodes (the first electrode body, the second electrode body) at a boundary portion (a bonded portion, a bonded portion) between the resistance body and each of the electrodes (the first electrode body, the second electrode body) on the mounting surface of the resistor.

A PTC starter is provided. A first pin is electrically connected to a first electrode of a thermistor. The thermistor and an elastic element are arranged in respective mounting cavities. The elastic element is provided with a connecting piece, through which a second pin is electrically connected to or disconnected from a second electrode of the thermistor. In a normal state of the thermistor, the elastic element is in an elastic deformation state, a first contact part and a second contact part of the elastic element are in electrical contact with the second electrode of the thermistor and the second pin respectively. After the thermistor ruptures, the elastic element resets, which causes the connecting piece to move so that the second contact part of the elastic element detaches from the second pin. An isolation structure is provided between the thermistor mounting cavity and the elastic element mounting cavity.

A PTC starter is provided. A first pin is electrically connected to a first electrode of a thermistor. The thermistor and an elastic element are arranged in respective mounting cavities. The elastic element is provided with a connecting piece, through which a second pin is electrically connected to or disconnected from a second electrode of the thermistor. In a normal state of the thermistor, the elastic element is in an elastic deformation state, a first contact part and a second contact part of the elastic element are in electrical contact with the second electrode of the thermistor and the second pin respectively. After the thermistor ruptures, the elastic element resets, which causes the connecting piece to move so that the second contact part of the elastic element detaches from the second pin. An isolation structure is provided between the thermistor mounting cavity and the elastic element mounting cavity.

A thermistor includes a thermistor element, a protective film formed on the surface of the thermistor element, and electrode portions formed on both end portions of the thermistor element, in which the protective film is formed of silicon oxide, and, as a result of observing a bonding interface between the thermistor element and the protective film, a ratio L/L.sub.0 of a length L of an observed peeled portion to a length L.sub.0 of the bonding interface in an observation field is 0.16 or less.

A thermistor includes a thermistor element, a protective film formed on the surface of the thermistor element, and electrode portions formed on both end portions of the thermistor element, in which the protective film is formed of silicon oxide, and, as a result of observing a bonding interface between the thermistor element and the protective film, a ratio L/L.sub.0 of a length L of an observed peeled portion to a length L.sub.0 of the bonding interface in an observation field is 0.16 or less.

A chip part is provided that includes a substrate in which an element region and an electrode region are set, an insulating film (a first insulating film and a second insulating film) which is formed on the substrate and which selectively includes an internal concave/convex structure in the electrode region on a surface, a first connection electrode and a second connection electrode which include, at a bottom portion, an anchor portion entering the concave portion of the internal concave/convex structure and which include an external concave/convex structure on a surface on the opposite side and a circuit element which is disposed in the element region and which is electrically connected to the first connection electrode and the second connection electrode.

A chip part is provided that includes a substrate in which an element region and an electrode region are set, an insulating film (a first insulating film and a second insulating film) which is formed on the substrate and which selectively includes an internal concave/convex structure in the electrode region on a surface, a first connection electrode and a second connection electrode which include, at a bottom portion, an anchor portion entering the concave portion of the internal concave/convex structure and which include an external concave/convex structure on a surface on the opposite side and a circuit element which is disposed in the element region and which is electrically connected to the first connection electrode and the second connection electrode.

A shunt resistor according to the present invention includes a pair of electrode plates spaced apart from each other in a plate surface direction and a resistive alloy plate that connects the pair of electrode plates and that has a predetermined set resistance value. A surface of the resistive alloy plate is provided with a visually recognizable character string pattern that is formed by laser processing and that indicates the set resistance value of the resistive alloy plate, and a surface area and a carving depth of the character string pattern are set in such a manner that the resistive alloy plate has the set resistance value.