22.Diode Symbols AutoCAD Blocks

Diode Symbols
Triode PNPN	Double Wave Rectifier Bridge
Constant Current Diode	Light Emitting Diode LED
Laser Diode	Photo Diode
Temperature Sensitive Diode	Photo Diode Common Cathode
Magnetically Sensitive Diode	Graetz Bridge
Bicolor, Depends On The Polarity	Tunnel Diode
NPN Breakdown Diode	Schottky Diode
Snap Diode	Pin Diode
Diode(Rectifier Diode)	With 4 Diodes
Tunnel Diode Rectifier	Diode (Rectifier Diode)
PNP Breakdown Diode	Varicap Diode / Varactor
Step Recovery Diode	Generic Symbol
Variable Voltage Diode	Zener Diode
Voltage Suppressor Diode

I also suggest downloading Electric Symbols.

File format: .DWG
Size: 97KB
Source: Collect
AutoCAD platform 2018 and later versions. For downloading files there is no need to go through the registration process