Common circuit diagram symbols (US symbols)

An electronic symbol is a pictogram used to represent various electrical and electronic devices (such as wires, batteries, resistors, and transistors) in a drawing of an electrical or electronic circuit. These symbols can (because of remaining traditions) vary from country to country, but are today to a large extent internationally standardized. Some symbols (such as those of vacuum tubes) became virtually extinct with the development of new technologies.

[edit] Gallery of common electronic symbols

Batteries, single cell, multi-cell	Capacitor	Capacitor, polarized (American)	Capacitor, variable
Diode	Zener diode	Tunnel diode	Light Emitting Diode (LED)
Photodiode	Silicon-controlled rectifier	Varicap	Schottky diode
Fuse: IEC (top) and American (lower two)	Inductor	Phone jacks	Potentiometer: American
Resistor: American (top) and IEC (bottom)	Switch, Single Pole/Single Throw (SPST)	Switch, Single Pole/Double Throw (SPDT)	Switch, Double Pole/Double Throw (DPDT)
Transformer, with center tap	NPN transistor	PNP transistor	n-channel junction gate field-effect transistor (JFET)
p-channel junction gate field-effect transistor (JFET)	Field-effect transistor	Vacuum tube diode	Vacuum tube triode
Vacuum tube pentode	Vacuum tube tetrode

[edit] See also

Electronics portal

• Circuit diagram

[edit] External links

Wikimedia Commons has media related to: Electrical symbols

• International standard IEC 60617 DB Graphical symbols for diagrams
• Circuit Symbols of Electronic Components
• Circuit Symbols for all Electronic Components
• List of Circuit Schematic Symbols
• Electrical & Electronic Drawing Symbols

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