GUARDIAN briefly introduces Electronic component

Passive components cannot introduce net energy into the circuit. They also cannot rely on a source of power, except for what is available from the (AC) circuit they are connected to. As a consequence, they cannot amplify (increase the power of a signal), although they may increase a voltage or current (such as is done by a transformer or resonant circuit). Passive components include two-terminal components such as resistors, capacitors, inductors, and transformers.

Active components rely on a source of energy (usually from the DC circuit, which we have chosen to ignore) and usually can inject power into a circuit, though this is not part of the definition.[1] Active components include amplifying components such as transistors, triode vacuum tubes (valves), and tunnel diodes.

Electronic components are small components used in electronic circuits that have the electrical characteristics required for electronic circuits. They are usually made of conductors, dielectrics, insulators and other materials, and are connected to electronic circuit boards by soldering or plug-ins. For example, resistors, capacitors, diodes, and integrated circuits are common electronic components. They play an important role in electronic products such as computers, mobile phones and broadcasting equipment.