Diode schematic symbols of electronic circuit - Diode, LED, Zener diode, Schottky diode, photodiode, ...
Left - Anode, Right - Cathode.
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 |