PoC is a coaxial control of video and power signal based on the coaxial line, and power superposition technology, which can transmit the power signal while transmitting the video signal, thereby reducing the amount of wire harness and reducing fuel consumption; In order to ensure high quality and efficient transmission, PoC inductors need to have broadband high impedance, high saturation current and low DCR characteristics to filter out video noise from MHz to GHz.