C型铁芯是采用低铁损高导磁的冷轧硅钢带制成，其结构呈两半C形拼合成闭合电路，为开放式结构。C型铁芯的线圈和铁芯可分开制作再装配，减少了生产时间，缩短了生产工期。C型铁芯广泛应用于电子设备中的变压器、互感器、电抗器、扼流圈等电磁元件中。

C type iron core is made of cold-rolled silicon steel with low iron loss and high magnetic conductivity, its structure is in C shape spliced into a closed circuit, open type structure. The coil and iron core of the C type iron core can be reassembled separately, reducing the production time and shortening the production time. C core is widely used in electromagnetic components such as transformers, transformers, reactors, choke rings and other electromagnetic components in electronic equipment.