Basic Electronic Components 

Resistors, capacitors, inductors, diodes, and transistors are examples of basic electronic components. Resistors are used in circuits to impede the passage of electrical current and to regulate the voltage. Capacitors are devices that store electrical charge while also smoothing out voltage swings. Inductors are employed in circuits to store energy in the form of a magnetic field and to filter out undesired frequencies. Diodes are used to enable just one direction of electrical current to flow and to safeguard circuits against voltage spikes. Transistors are the primary building blocks of integrated circuits and are used to amplify and switch electrical signals.


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Electronic components are essential building blocks used to control electrons or their associated fields in electronic systems. These components are tangible, mass-produced items and should not be confused with abstract electrical elements. Electronic components feature multiple electrical terminals that link to other electronic components through wires to form a circuit with a particular function.


Basic electronic components include resistors, capacitors, inductors, diodes, LEDs, transistors, crystals and oscillators, electromechanical components such as switches and relays, ICs, and connectors. Resistors limit current flow, capacitors store electrical energy in an electric field, and inductors store electrical energy in a magnetic field. Diodes permit current to flow in only one direction, while LEDs emit light when current flows through them, and transistors amplify or switch electronic signals. Crystals and oscillators create precise frequencies, and electromechanical components such as relays and switches manage the flow of electricity. ICs, also known as integrated circuits, are miniature electronic circuits containing various components on a single chip. Connectors link different electronic components together.


It is crucial to understand the various basic electronic components when designing and creating electronic products. It is also important to consider the component parameters when selecting electronic components and to be aware of standard sizes and shapes of components during the electronic product design and manufacturing process.


Active and Passive Components difference:

Active ComponentsPassive Components
Active Components give power to to the circuit.Passive Components accept power from the power source in the circuit.
Active Components Produce energy in form of Voltage and Current.Store energy in form of Voltage and Current.
Examples: Diode, Transistor, SCR, ICs etc.Examples: Resistor, Capacitor, Inductor etc.

Basic Electronic Components Prices in India

Basic electronic component type 



9 - 49


65 - 65


11 - 52


13 - 235


12 - 79


145 - 325




1. What are the 4 basic types of electronic components?

  • Basic electronic components are capacitors, resistors, diodes, transistors, etc. These parts can be powered by a signal generator and a DC power supply. Basic components are used in DIY electronic components.

2. What is the difference between active element and passive element?

  • Active components have a change in potential and are connected to The Battery. Passive components do not have a change in potential. A resistor is an active component because it reacts to the addition of current (i) by allowing the current to flow through the terminals.  Because of this, a resistor (R) is also known as a blocking device.  The internal element of a diode is able to make or break current flow depending on whether voltage is applied to its terminals (V). 
  • Active components are electronic circuits that change their outputs when voltage is applied to them.  Passive Circuit components are not changed by the input voltages and output current varies as a function of the input voltage.  Active components add their own power supply, while passive components only take power from other sources.  Active Electronic components get their energy from a battery or other power source. Passive Electronic components use the current going through them to create electricity. The most common type of active component is a resistor, which limits the flow of current through it when voltage is applied to it. A diode prevents one side of an electrical circuit from conducting while letting the other side do so. A capacitor stores energy in its electrodes and then releases it again it keeps more charge on one plate than the other two plates combined and forces electrons to move in one path as opposed to another, releasing static electricity when connected to an alternating current source. A power supply transforms batteries with steady voltage into higher voltages in order. 

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