Electronics Components
Definition: The components used in designing or assembling of an electronic circuit are
called electronic components.
Every
circuit usually contains multiple electronic components such as diodes,
resistors, capacitors, transistors etc.
Active components:
i. The electronic components, which
by themselves are capable of amplifying or processing an electrical signal are
called active components.
ii. These components conduct the
current only in one direction and therefore are known as
unilateral/unidirectional devices. e.g. Electronic tubes and
semiconductor devices such as diodes, transistors, FETs, UJTs etc.
Passive
components:
i. The electronic components, which
by themselves are not capable of amplifying or processing an electrical signal
are called passive components.
i. These components conduct current
in both the directions hence are known as bilateral/ bidirectional
devices. e.g. Resistors, capacitors, inductors.
Comparison between passive and active components:
Parasitic components:
i. The components do not exist
physically, but are due to electrodes or wirings are called parasitic
components.
ii. Conceptually, they are present in
the device and in the electronic circuits. iii. These components
play an important role when circuit is operated at high frequency. e.g. Inter
electrode capacitance, junction capacitance, stray capacitance, charge storage
capacitance, diffusion capacitance etc.
