Carbon film resistors are usually cylindrical or flaky substrates made of ceramic or glass materials. Carbon film is tightly attached to the surface of ceramic rods by high-temperature vacuum coating technology to form carbon films, and then cut by appropriate joints, and the surface is sealed and protected by epoxy resin, which has good long-term stability and reliability. In the circuit, carbon film resistors can cooperate with other resistors to form a voltage divider circuit, thus providing the required voltage, controlling the current flowing in the circuit and preventing other components from being damaged by excessive current. Carbon film resistors are also used to adjust the amplitude and frequency response of signals. Widely used in TV, audio, computer and other control current and voltage; Washing machines, refrigerators, microwave ovens, etc. control current and realize voltage distribution.
