Inductors, also known as coils or transformers, are passive electronic components that are used to store energy in the form of a magnetic field. Inductors consist of a coil of wire, which creates a magnetic field when an electric current is passed through it. The strength of the magnetic field depends on the number of turns of wire in the coil, the size of the coil, and the type of material used for the wire.
Through-hole inductors are a type of inductor that is designed to be mounted onto a circuit board using leads or pins that are inserted through holes in the board. Through-hole inductors are commonly used in applications where a larger, more robust inductor is needed, such as in power supplies or high-power circuits. Through-hole inductors are generally larger and more expensive than surface-mount inductors, but they are more durable and can handle higher current levels.