Answer / abdul quadir khumani

Diode is a Semiconductor having one p-n junction But in case
of SCR there three p-n junctions

diode can work in both direction but SCR works only in one
direction( i.e., P-N-P-N)

diode is combination of two semiconductors (i.e., p-type and
n-type), but SCR is a combination of two transistors (i.e.,
pnp and npn transistor)

diode always conducts if input is given to it but SCR don't
shows this property there are some method to turn ON or to
turn OFF the SCR (like using Gate Pulse method)

and there are lot of differance between DIODE and SCR

thanks, to give me opportunity to show my views

Answer / don devil

Diode is a two terminal device.
SCR is a three terminal device.

Answer / kingston

DIODE IS USED FOR FREE CURRENT FLOW BUT SCRS TRANSMIT POWER

Answer / jahangir alam

DIODE HAS UNCONTROLLED SIMPLE RECTIFICATION APPLICATION IN
LOW VOLTAGE AREA BUT SCR HAS CONTROLLED RECTIFICATION
APPLICATION IN VERY HIGH VOLTAGE ENVIRONMENT

Answer / ravi tamrakar

scr power handling is better than diode.

Answer / dinesh naika

Diode: 2-terminal, 1-junction semiconductor device. it has
no control on its conduction
where as SCR is 3-terminal,3- junction semiconductor device.
it has control over its conduction.i.e unless a gate signal
is applied it wont conduct

Answer / dillip kumar jena

Diod is a semiconducter device, made of Si,Ge etc..
sCR is made of only Si not any other semeconducter device.

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