Answer Posted / 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

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