A temperature sensor comprising: a temperature sensing element for transducing a sensed temperature into an electrical output signal and comprising two or more electrically conductive leads (104a-b); a mineral insulated cable comprising two or more conductor wires (108a-b) enclosed by a metal outer sheath such that the two or more conductor wires (108a-b) are insulated with respect to each other inside the cable and wherein the two or more conductor wires (108a-b) extend beyond the outer sheath at a terminal end thereof; the two or more electrically conductive leads (104a-b) of the temperature sensing element being connected to the two or more conductor wires (108a-b) extending beyond the outer sheath at one or more junction regions; the temperature sensor further comprising an electrically insulating element which is configured to electrically insulate the said extended two or more conductor wires (108a-b) at least partially with respect to each other and with respect to the metal outer sheath of the cable; the electrically insulating element comprising a first opening for receiving at least the two or more conductor wires (108a-b) extending beyond the outer sheath, and a second opening for receiving at least partially the temperature sensing element; wherein each junction region is located within the electrically insulating element; the electrically insulating element further comprising at least one aperture extending up to each junction region, and characterized in that the cable and the temperature sensing element are partially nested and retained in the respective first and second openings of the electrically insulating element by force fit, press fit or friction fit connection. a temperature sensing element for transducing a sensed temperature into an electrical output signal and comprising two or more electrically conductive leads (104a-b); a mineral insulated cable comprising two or more conductor wires (108a-b) enclosed by a metal outer sheath such that the two or more conductor wires (108a-b) are insulated with respect to each other inside the cable and wherein the two or more conductor wires (108a-b) extend beyond the outer sheath at a terminal end thereof; the two or more electrically conductive leads (104a-b) of the temperature sensing element being connected to the two or more conductor wires (108a-b) extending beyond the outer sheath at one or more junction regions; the temperature sensor further comprising an electrically insulating element which is configured to electrically insulate the said extended two or more conductor wires (108a-b) at least partially with respect to each other and with respect to the metal outer sheath of the cable; the electrically insulating element comprising a first opening for receiving at least the two or more conductor wires (108a-b) extending beyond the outer sheath, and a second opening for receiving at least partially the temperature sensing element; wherein each junction region is located within the electrically insulating element; the electrically insulating element further comprising at least one aperture extending up to each junction region, and characterized in that the cable and the temperature sensing element are partially nested and retained in the respective first and second openings of the electrically insulating element by force fit, press fit or friction fit connection.