1624127-2 1 Gang Rotary Carbon Potentiometer with a 6.35 mm Dia.. TE Connectivity brings you a range of premium quality rotary potentiometers. With their brilliant build quality, they also boast a carbon element material and are panel mounted. They’re built with ruggedness in mind and are housed in an aluminium housing. Not to mention they’re solder lug termination to make it easier for a panel mount.