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 |