Integrated component for protecting against transient overvoltages, including: • a first and a second conductive tab (15, 16), each of which is able to be mounted on an electrical circuit; • a gas discharge tube including a first discharge tube electrode, a second discharge tube electrode and a discharge tube body arranged between the first and the second discharge tube electrodes, the body of the discharge tube being able to rise in temperature when an electric current flows through it; • a thermal disconnector equipped with a temperature-sensitive element designed to provide an electrical connection in an initial state and to interrupt said electrical connection when it is subjected to a temperature greater than a threshold; • a varistor including: - a varistor body, - a first varistor electrode and a second varistor electrode that are positioned on either side of the varistor body, the varistor body being able to rise in temperature when the voltage applied across the first and the second varistor electrodes exceeds a voltage threshold; the first conductive tab being connected to the first varistor electrode by a first connection, the second varistor electrode being connected to the first discharge tube electrode by a second connection, the second discharge tube electrode being connected to the second conductive tab by a third connection, the first connection being made through the thermal disconnector, the temperature-sensitive element being sensitive to the temperature increase of at least one of the discharge tube and the varistor; wherein the temperature-sensitive element of the thermal disconnector is a metal connector having a melting point equal to or less than a thermal safety temperature threshold for the varistor, wherein a first end of the metal connector is soldered to the first varistor electrode, the component furthermore including an insulator arranged on a surface of the first varistor electrode in such a way that a second end of the metal connector does not make contact with the surface of the first varistor electrode. • a first and a second conductive tab (15, 16), each of which is able to be mounted on an electrical circuit; • a gas discharge tube including a first discharge tube electrode, a second discharge tube electrode and a discharge tube body arranged between the first and the second discharge tube electrodes, the body of the discharge tube being able to rise in temperature when an electric current flows through it; • a thermal disconnector equipped with a temperature-sensitive element designed to provide an electrical connection in an initial state and to interrupt said electrical connection when it is subjected to a temperature greater than a threshold; • a varistor including: - a varistor body, - a first varistor electrode and a second varistor electrode that are positioned on either side of the varistor body, the varistor body being able to rise in temperature when the voltage applied across the first and the second varistor electrodes exceeds a voltage threshold; - a varistor body, - a first varistor electrode and a second varistor electrode that are positioned on either side of the varistor body, the varistor body being able to rise in temperature when the voltage applied across the first and the second varistor electrodes exceeds a voltage threshold;