Circuit Symbol of Diodes

Component Circuit Symbol Function of Component
Diode diode symbol A device which only allows current to flow in one direction.
LED Light Emitting Diode LED symbol A transducer which converts electrical energy to light.
Zener Diode zener diode symbol A special diode which is used to maintain a fixed voltage across its terminals.
Photodiode photodiode symbol A light-sensitive diode.

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