Most Important Electronic Symbols and Diagrams



Hey, in this article we are going to see the most important electronic symbols used everywhere in electronics engineering drawings, circuit diagrams, wiring diagrams, etc. If you are an electronics engineering student, teacher, or professional, then you should not forget these electronics engineering symbols forever. You must remember these symbols of basic electronic components, circuitry, elements, etc.

Here is the list of the most important basic electronic symbols you should know,
  • Resistor
  • Inductor
  • Capacitor
  • Diode
  • Transistor
  • Thyristor
  • Logic Gates
  • DC Voltage Source
  • Grounding
  • Cell
  • Battery
  • Microphone
  • Speaker
  • Integrated Circuit(IC)
  • Transducer
  • Sensor
  • Actuator



Resistor Symbol


Resistor Symbol, electronic symbols


A resistor is a very well-known and useful passive component. It is used in almost all electrical and electronic circuits. The main function of a resistor is to oppose the flow of electric current. So, having an electronics background you must know the symbol of resistor.




Inductor Symbol


inductor symbol, basic electronic symbols


The inductor is also a very useful passive component. The main function of an inductor is to oppose the changes in the current flowing through it. Also, it can store energy in the form of a magnetic field. Inductors are used in electronic circuits for filtering purposes, energy-storing purposes, etc. There so many types of inductors are available. But you must know the basic symbol of inductor.




Capacitor Symbol


Symbol of Capacitor


The capacitor is also a very important passive component used in both electrical and electronic circuits. The main function of a capacitor is to store electrical energy in the form of an electric charge. Capacitors are used in electronic circuits for filtering, and energy-storing purposes. There are so many types of capacitors available such as polarized, nonpolarized, etc. So, you must know the basic symbol of capacitors used everywhere.




Diode Symbol


Symbol of PN Junction Diode


A diode is a very important active component used in electronic circuits. The main function of a diode is to block the flow of current in one direction and allow the flow of current in the opposite direction. The main application of the diode is the rectifier circuit. Most of the electronic circuits require diodes for their operations. So, you must know the symbol of diode.




Transistor Symbol


Symbol of Electronic Transistor


Transistors are also an active component and are used in almost all electronic circuits. In fact, the whole electronics and communication engineering depends upon the transistor family. The main function of a transistor is to switch and amplify the electronic signals. The applications of transistors are more in digital electronic circuits than analog electronic circuits. Anyway, you must remember the symbol of transistor.




Thyristor Symbol


symbol of thyristor


Here, you can see the symbol of thyristor(silicon control rectifier or SCR). A thyristor is a solid-state four-layer semiconductor device. Thyristor acts as a bi-stable switch. There are different types of thyristors available such as SCR, IGBT, TRIAC, DIAC, etc. Here, only the SCR symbol is given. But you must know, all types of thyristor symbols.




Logic Gates Symbol


Symbol of Electronic Logic Gate


Logic gates are the base of digital electronic circuits. Without logic gates, digital electronics are not possible to make. There are different types of logic gates are available. You should know the symbol of logic gates. So when you going to understand logical circuits, it will be helpful for you.


Symbols of Electronic Sensors


Symbol of Electronic Sensor


Modern automation technology is built with so many electronic sensors and electronic circuitry. There are various types of sensors available. So you must know the symbols of the most important and most usable sensors.




Transducer Symbol


Symbol of Transducer


There are so many transducers are used in automation systems. A transducer is a device that converts physical changes into electronic signals. There are Various types of transducers are available and they categorized as Active or Passive. Anyway, you must know the most usable transducer symbols.


Actuator Symbol


Symbol of Electronic Actuator



The actuator is just opposite to the transducer. It actuates or makes physical changes when an electronic signal is applied to it. Some common examples of actuators are solenoids, motors, etc. So, it is also most important to know the symbol of actuator used in different automation systems.




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Most Important Electronic Symbols and Diagrams Most Important Electronic Symbols and Diagrams Reviewed by Author on September 17, 2021 Rating: 5
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