Electronic products that require integrated circuits that, in order to save space, make the product lighter/durable/and perform well, must be phased out before the wire connections are transferred to the printed circuit board.

PCBs are well placed to meet space/performance and reliability requirements.

Not every electrical appliance requires a circuit board, and a simple electrical appliance does not require a circuit such as an electric motor. However, electrical appliances with specific functions generally require circuit boards to achieve applications such as applications: products are widely used in communications, power, security, optoelectronics, industrial control, medical, automotive and consumer electronics,and other fields.