Diode Symbols

Diode schematic symbols of electronic circuit - Diode, LED, Zener diode, Schottky diode, photodiode, ...

 

Symbol	Name	Description
	Diode	Diode allows current flow in one direction only (left to right).
	Zener Diode	Allows current flow in one direction, but also can flow in the reverse direction when above breakdown voltage
	Schottky Diode	Schottky diode is a diode with low voltage drop
	Varactor / Varicap Diode	Variable capacitance diode
	Tunnel Diode
	Light Emitting Diode (LED)	LED emits light when current flows through
	Photodiode	Photodiode allows current flow when exposed to light

 

Transistor symbols ►

 

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See also

• Electronic symbols
• Switch symbols
• Resistor symbols
• Capacitor symbols
• Transistor symbols