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Various electronic components.An electronic component is any basic discrete device or physical entity in an used to affect or their associated. Electronic components are mostly, available in a singular form and are not to be confused with, which are conceptual abstractions representing idealized electronic components.Electronic components have a number of. These leads connect to other electrical components, often over wire, to create an with a particular function (for example an, or ). Basic electronic components may be packaged discretely, as arrays or networks of like components, or integrated inside of packages such as, or devices. The following list of electronic components focuses on the discrete version of these components, treating such packages as components in their own right.
Contents.Classification Components can be classified as,. The strict physics definition treats passive components as ones that cannot supply energy themselves, whereas a would be seen as an active component since it truly acts as a source of energy.However, who perform use a more restrictive definition of. When only concerned with the energy of, it is convenient to ignore the so-called circuit and pretend that the power supplying components such as or is absent (as if each such component had its own battery built in), though it may in reality be supplied by the DC circuit.
Then, the analysis only concerns the AC circuit, an abstraction that ignores DC voltages and currents (and the power associated with them) present in the real-life circuit. This fiction, for instance, lets us view an oscillator as 'producing energy' even though in reality the oscillator consumes even more energy from a DC power supply, which we have chosen to ignore. Under that restriction, we define the terms as used in as:.
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. Active components include amplifying components such as, triode (valves), and. Passive components can't introduce net energy into the circuit.
They also can't rely on a source of power, except for what is available from the (AC) circuit they are connected to. As a consequence they can't 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. can carry out electrical operations by using moving parts or by using electrical connectionsMost passive components with more than two terminals can be described in terms of that satisfy the principle of —though there are rare exceptions.
In contrast, active components (with more than two terminals) generally lack that property.Active components Semiconductors Diodes Conduct electricity easily in one direction, among more specific behaviors.,. – super fast diode with lower forward voltage drop.
– passes current in reverse direction to provide a constant voltage reference. (TVS), unipolar or bipolar – used to absorb high-voltage spikes. – a diode whose AC capacitance varies according to the DC voltage applied. Various examples of Light-emitting diodes. (LED) – a diode that emits light.
– passes current in proportion to incident light. – photodiode with internal gain.
or panel – produces power from light. (diode for alternating current), Trigger Diode, SIDAC) – often used to trigger an SCR. – a semiconductor.
very fast diode based on quantum mechanical tunneling. a form of semiconductor diode in which at a critical reverse voltage a large reverse current can flow.Transistors were considered the invention of the twentieth century that changed electronic circuits forever.
Some different capacitors for electronic equipmentCapacitors store and release electrical charge. For instance, a computer could be contained inside a black box with two external terminals. It might do various calculations and signal its results by varying its resistance, but always consuming power as a resistance does. Nevertheless, it's an active component, since it relies on a power source to operate. Nonreciprocal passive devices include the (though as a truly passive component, this exists more in theoretical terms, and is usually implemented using an active circuit)—and the, which is used at microwave and optical frequencies. April 2, 2018.
Retrieved 28 July 2019. Baker, R.
Jacob (2011). Sensor Corp.Wikimedia Commons has media related to.