Electronic component symbols are graphic marks used to represent different electronic components in electronic circuits. These symbols help engineers and electronic technicians clearly indicate the connection relationship and function of each component in the circuit when designing and drawing circuit diagrams. Common electronic component symbols include:
Resistors: Usually represented by simple straight lines or boxes, sometimes with resistance values marked.
Capacitors: Represented by two parallel lines, sometimes with capacitance values marked.
Inductors and Transformers: Usually represented by symbols with coils. Inductors usually have only one coil, while transformers have two or more coils.
Diodes: Usually represented by symbols with arrows or triangles, the direction of the arrow indicates the direction of current.
Triodes and Thyristors: The symbols of these components are usually more complex, including multiple pins and specific connection methods.
Switches: Usually represented by simple graphics, such as push button switches, slide switches, etc.
In addition, there are other special electronic component symbols, such as bridge rectifiers, surface acoustic filters, crystal resonators, etc. These symbols have their own specific graphic representation methods, which are used to clearly express the functions and connections of components in circuit diagrams.