A connector part for connecting to a mating connector part includes: a housing part; an electrical contact element arranged on the housing part for making electrical contact with the mating connector part; and a temperature monitoring device having a sensor device for detecting a heating on the contact element. The temperature monitoring device includes a carrier element which extends flatly along a plane, on which the sensor device is arranged, and which has two clip arms via which the carrier element is clippable onto the contact element.