Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.

Enamel Coil Wire: An Important Electronic Component

What is Enamel Coil Wire


Enamel Coil Wire is a type of copper wire composed of a conductor and an insulating layer, mainly used in the manufacturing of motors, electrical appliances, and household appliances. Enamel coil wire is made by annealing the bare wire and then coating it with paint multiple times. Its quality is affected by factors such as raw material quality, process parameters, production equipment and environment.

Composition of Enamel Coil Wire


The conductor part of Enamel Coil Wire is usually made of high-purity, high-conductivity copper wire, while the insulating layer is formed by coating insulating materials such as polyester varnish and polyester-imide varnish. These insulating materials not only provide excellent electrical insulation performance but also mechanical strength and chemical stability to meet different usage requirements.


Classification of Enamel Coil Wire


The wire diameter specifications of Enamel Coil Wire are generally divided into the following categories:


Ultra-fine diameter


Usually refers to Enamel Coil Wire with a diameter below 0.01mm, used in the internal wiring of miniature electrical appliances and electronic components.


Fine diameter


Enamel Coil Wire with a diameter between 0.01-0.08mm, suitable for internal or surface wiring of small appliances, instruments, and electronic devices.


Medium diameter


Enamel Coil Wire with a diameter between 0.08-0.30mm, suitable for internal or surface wiring of large appliances, instruments, and electronic devices.


Thick diameter


Enamel Coil Wire with a diameter greater than 0.30mm, suitable for busbars, power leads, and high-current scenarios in large electrical equipment.


Applications of Enamel Coil Wire


As an important product in the wire and cable field, Enamel Coil Wire plays an irreplaceable role in several key industries.


Firstly, in the electronics industry, Enamel Coil Wire becomes the preferred material in the manufacturing of electronic circuit boards, electronic sockets, and remote controllers, owing to its excellent electrical performance, heat resistance, and corrosion resistance.


Secondly, the electrical appliance industry also relies on Enamel Coil Wire. Whether in household appliances or industrial equipment, the good heat resistance and insulation properties of Enamel Coil Wire ensure stable operation of the wires in high-temperature environments, being widely used in home appliances such as electric ovens and microwave ovens.


Additionally, in the automotive industry, the high-temperature resistance and shockproof characteristics of Enamel Coil Wire make it an ideal choice for ignition systems, starters, and other electronic devices and control systems.


Finally, the aerospace industry has extremely high requirements for wires, and the high strength and heat resistance of Enamel Coil Wire meet this demand, thus being widely used in aerospace products.


In conclusion, with its unique performance advantages, Enamel Coil Wire occupies a pivotal position in the electronics, electrical appliances, automotive, and aerospace industries.