The classification of common electronic components is based on a variety of methods. The following is a summary of common categories:

First of all, electronic components have their own independent circuit functions and constitute the basic unit of the circuit. With the development of electronic technology, there are more and more varieties and functions of components, and the scope involved is also expanding, spanning the traditional classification of components, circuits and systems and the basic categories of hardware and software.

Fundamentally speaking, basic circuit components can be roughly divided into active components and passive components. For components made of semiconductors, devices and integrated devices can also be separated. According to the purpose, it can also be divided into: basic circuit elements, switching elements, connectors, indicating or displaying devices, sensors and so on.

Passive device is a kind of component that only consumes the input signal electric energy of the component, and can process and transmit the signal without power supply.

Passive devices include resistors, potentiometers, capacitors, inductors, diodes, etc.

The basic condition for active devices to work normally is that corresponding power supply must be provided. Without power supply, these devices will not work. Active devices, including triodes, field effect transistors, integrated circuits, etc. Is a semiconductor-based component.

With the development of integrated circuits, unit circuits, functional circuits and even the whole electronic system are integrated together.