Schematic Symbol Reference
Symbols used to represent electrical devices and electronic functions.
Last on my list of electronics items to begin learning was schematics; how to read them and how to create schematic drawings. This page is actually an exercise for me to practice drawing schematic symbols. I have drawn each of these using Adobe Illustrator. I hope to add more symbols as time passes. Below is the schematic symbols reference.
SOURCES
DC Sources
Vcc
Single Cell Battery
Multicell Battery
AC Source
Photocell
GROUNDS
Earth
Chassis
Gnd
RESISTORS
Resistor
Variable Resistor
Tapped Resistor
Adjustable Resistor
Photo Resistor
Thermistor
Varistor
Photo Resistor
DIODES
Rectifier Diode
Schottky Diode
Zener Diode
Tunnel Diode
Photo Diode
LED
RGB LED
Varactor
DIAC
SWITCHES
SPST
SPDT
DPST
DPDT
Time Controlled Switch
Voltage Controlled Switch
Momentary-Normally Open
Momentary-Normally Closed
Thermal-Normally Open
Thermal-Normally Closed
Tilt Switch
CAPACITORS
Fixed Capacitor
Non-Polarized Capacitor
Electrolyic Capacitor
Variable Capacitor
Split-Stator Capacitor
Feed-Through Capacitor
TRANSISTORS
Bipolar PNP Transistor
Bipolar NPN Transistor
P-Channel UJT Transistor
N-Channel UJT Transistor
P-Channel Junction FET Transistor
N-Channel Junction FET Transistor
P-Channel Depletion Mode MOSFET
N-Channel Depletion Mode MOSFET
P-Channel Enhancement Mode
MOSFET Transistor
N-Channel Enhancement Mode
MOSFET Transistor
P-Channel Insulated Gate
Transistor
N-Channel Insulated Gate
Transistor
P-Channel Power
MOSFET Transistor
N-Channel Power
MOSFET Transistor
Basic Schematic Symbols