In Electronics, There are two types of component 1) Active
Component, 2) Passive Component
Active Component: The electronics components require an
external source of energy to perform their function. Example of Active
Component includes amplifying components such as Transistor, Vaccum Tubes, and
Tunnel Diodes. Etc.
Passive Component: They can't introduce net energy for the
circuit. Though they can’t amplify. So they don’t needs to perform. Example of
Passive Components such as capacitor, resistor, inductors, and transformers.
There are so many verities of
active component
Semiconductors
Diodes – It is an electrical
device to permit current to go through it in one direction. There are different
type of diode and Light-emitting diode
Diode, Rectifier, Bridge
rectifier
Zener diode – Pass current in
reverse direction to provide a constant voltage reference
Schottky diode, hot carrier diode
– Very fast diode with minor forward voltage drop
Transient voltage suppression
diode (TVS), Unipolar or Bipolar – Used to absorb high-voltage spikes
Varactor, Tuning diode, Varicap,
Variable capacitance diode – A diode whose AC capacitance varies according to
the DC voltage applied.
Photodiode – Passes current in
proportion to incident light
Light-emitting diode (LED) – A
diode that emits light
Avalanche photodiode - Photodiode
with internal gain
Solar Cell, photovoltaic cell, PV
array or panel, produces power from light
DIAC (Diode for Alternating
Current), Trigger Diode) – Often used to trigger an SCR
Constant-current diode
Transistors - A transistor is a
semiconductor device utilized to increase as well as change electric alerts and
electricity. Different type of transistors
Bipolar junction transistor (BJT,
or simply "transistor") – NPN or PNP
Darlington transistor – NPN or
PNP
Photo transistor – Amplified photo
detector
Photo Darlington – Amplified photo
detector
Field-effect transistor (FET)
JFET (Junction Field-Effect
Transistor) – N-CHANNEL or P-CHANNEL
MOSFET (Metal Oxide Semiconductor
FET) – N-CHANNEL or P-CHANNEL
MESFET (MEtal Semiconductor FET)
HEMT (High electron mobility
transistor)
Sziklai pair (Compound
transistor, complementary Darlington)
Thyristors
Silicon-controlled rectifier
(SCR) – Passes current only after triggered by a sufficient control voltage on
its gate
TRIAC (TRIode for Alternating
Current) – Bidirectional SCR
Unijunction transistor (UJT)
Programmable Unijunction
transistor (PUT)
SIT (Static induction transistor)
SITh (Static induction thyristor)
IGBT (Insulated-gate bipolar
transistor)
Composite transistors
Integrated circuits -
Analog
Digital
Current sensor – Senses a current
through it
Hall Effect sensor –senses a
magnetic field
Optoelectronic devices -
Optoelectronics
Opto switch, Opto interrupter,
Optical switch, Optical interrupter, Photo switch, Photo interrupter
Opto-Isolator, Opto-Coupler,
Photo-Coupler – Photodiode, BJT, JFET, SCR, TRIAC, Zero-crossing TRIAC, Open
collector IC, CMOS IC, Solid state relay (SSR)
LED display – Seven-segment
display, Sixteen-segment display, Dot-matrix display
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