Synthetic carbon film potentiometer: It has wide resistance range, good resolution, simple process, low price, and other characteristics, but it has high dynamic noise and poor moisture resistance. This type of potentiometer should be used as a functional potentiometer and widely used in consumer electronic products. Using a printing process can automate the production of carbon films.

The mechanical life of a potentiometer, also known as wear life, is commonly expressed as mechanical durability. Mechanical durability refers to the total number of reliable movements of the moving contact of the potentiometer under specified test conditions, commonly expressed as "week". The mechanical life depends on the type, structure, material, and manufacturing process of the potentiometer, and there are considerable differences.