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'''Electronic symbols''' are graphical representations used to depict electronic components, devices, and circuits in circuit diagrams and schematics. These symbols help engineers, technicians, and hobbyists communicate and understand the design and functionality of electronic circuits. Electronic symbols should be intuitive, allowing users to grasp their meaning at a glance.
'''Electronic symbols''' ... not intended to be comprehensive ...

== Common electronic symbols ==
These symbols are standardized, and various organizations, such as the International Electrotechnical Commission (IEC) and the Institute of Electrical and Electronics Engineers (IEEE), provide guidelines for their use. It's essential to understand these symbols when reading or creating circuit diagrams to design and troubleshoot electronic circuits. The following is a selection of some of the most common symbols.


{|class="wikitable"
{|class="wikitable"
!Component!!Unit!!colspan=2|Symbol
!Component!!Unit!!colspan=2|Symbol
|-
|-
| Resistor||Ohm||[[File:Resistor h wikisch.svg|100px]]||[[File:Resistor symbol Europe.svg|100px]]
| Resistor, IEEE and IEC style||Ohm||[[File:Resistor h wikisch.svg|100px]]||[[File:Resistor symbol Europe.svg|100px]]
|-
|-
| Potentiometer||Ohm||[[File:Pot schemA.svg|100px]]||[[File:Potentiometer symbol Europe.svg|100px]]
| Potentiometer, IEEE and IEC style||Ohm||[[File:Pot schemA.svg|100px]]||[[File:Potentiometer symbol Europe.svg|100px]]
|-
|-
| Pre-set resistor||Ohm||Preset Resistor.svg
| Trimmer resistor, IEC style||Ohm||colspan=2|[[File:Preset resistor transparent body.svg|100px|center]]
⚫
|-
| Variable resistor||Ohm||
|-
|-
| Capacitor||Farad||
| Capacitor||Farad||colspan=2|[[File:One non-polarized capacitor symbol.svg|40px|center]]
|-
|-
| Polarised capacitor||Farad||
| Polarised capacitor||Farad||colspan=2|[[File:Three polarized capacitor symbols.svg|170px|center]]
|-
|-
| Variable capacitor||Farad||
| Variable capacitor||Farad||colspan=2|[[File:Symbol Capacitor (changeable).svg|70px|center]]
|-
|-
| Trimmer capacitor||Farad||colspan=2|[[File:Symbol Capacitor (setable).svg|70px|center]]
| Inductor||Henry||
⚫
|-
| Inductor||Henry||colspan=2|[[File:Inductor.svg|70px|center]]
|-
| Magnetic core inductor||Henry||colspan=2|[[File:IEC Inductor with magnetic core.svg|70px|center]]
|-
|-
| Transformer with two secondary windings|| — ||colspan=2|[[File:Transformer two secondary windings.svg|70px|center]]
| Inductor with core||Henry||
|-
|-
⚫
| Quartz crystal||Herz||colspan=2|[[File:Crystal-oscillator-IEC-Symbol.svg|70px|center]]
| Transformer|| — ||
|-
|-
| Diode|| — ||[[File:Diode01.svg|70px|center]]||[[File:Diode01s.svg|70px|center]]
⚫
| Quartz crystal||Herz||colspan=2|[[File:IEEE 315 Fundamental Items Symbols (113).svg|100px]]
|-
|-
| Diode|| — ||
| Schottky diode|| — ||[[File:Diode09.svg|70px|center]]||[[File:Diode09s.svg|70px|center]]
|-
|-
| Varactor diode|| — ||
| Zener diode|| — ||[[File:Zener diode symbol-2.svg|70px|center]]||[[File:Symbol Z-Diode.svg|100px|center]]
|-
| Varactor diode|| — ||[[File:Diode06.svg|70px|center]]||[[File:Diode06s.svg|70px|center]]
|-
|-
| LED|| — ||
| LED|| — ||[[File:Diode08.svg|70px|center]]||[[File:Symbol_LED.svg|70px|center]]
|-
|-
| NPN transistor|| — ||
| NPN bipolar junction transistor|| — ||[[File:BJT NPN symbol (case, unlabelled).svg|50px|center]]||[[File:Transistor symbol npn no circle.svg|50px|center]]
|-
|-
| PNP bipolar junction transistor|| — ||[[File:BJT PNP symbol (case, unlabelled).svg|70px|center]]||[[File:Transistor symbol pnp no circle.svg|70px|center]]
| FET|| — ||
|-
| N-channel JFET|| — ||colspan=2|[[File:JFET N-Channel.svg|70px|center]]
|-
| P-channel JFET|| — ||colspan=2|[[File:JFET P-Channel.svg|70px|center]]
|-
| Operational Amplifier|| — ||colspan=2|[[File:Op-amp symbol simplified.svg|100px|center]]
|-
|-
| Microphone, IEEE and IEC style||Ohm||[[File:IEEE MIC.svg|50px|center]]||[[File:IEC MIC.svg|50px|center]]
| Earphone|| — ||
|-
|-
| Loudspeaker||Ohm||colspan=2|[[File:IEEE Loudspeaker.svg|50px|center]]
| Microphone||Ohm||
|-
|-
| Single cell and battery||Volt||[[File:Battery symbol1.svg|50px|center]]||[[File:Battery symbol2.svg|50px|center]]
| Loudspeaker||Ohm||
|-
|-
| Incandescent light bulb||Watt||colspan=2|[[File:Lamp symbol.svg|100px|center]]
| Cell||Volt||
|-
|-
| Voltmeter and ammeter ||||[[File:Symbole voltmetre.png|100px|center]]||[[File:Symbole amperemetre.png|100px|center]]
| Battery||Volt||
|-
|-
| Push-to-make switch, push-to break switch, IEEE style|| — ||[[File:IEEE push to make switch symbol.svg|50px|center]]||[[File:IEEE push to break switch symbol.svg|50px|center]]
| Lamp bulb||Watt||
|-
|-
| SPST switch|| — ||
| SPST and SPDT switch|| — ||[[File:SPST-Switch.svg|100px|center]]||[[File:3wayswitchR.svg|100px|center]]
|-
|-
| DPST switch|| — ||
| DPST and DPDT switch|| — ||[[File:DPST-symbol.svg|100px|center]]||[[File:DPDT-symbol.svg|100px|center]]
|-
| DPST and DPDT relay|| — ||[[File:SPDT relay symbol.svg|50px|center]]||[[File:DPDT relay symbol.svg|50px|center]]
|-
| TS and TRS jack socket|| — ||[[File:TS phone connector symbol.svg|100px|center]]||[[File:TRS phone connector symbol.svg|100px|center]]
|-
| DC barrel connector, positive tip|| — ||colspan=2|[[File:Positive Tip Plug.svg|100px|center]]
|-
| Voltage source and current source|| — ||[[File:Voltage Source.svg|100px|center]]||[[File:Current Source.svg|100px|center]]
|-
| Fuse, IEEE and IEC style||Amp||[[File:IEEE style fuse.svg|100px|center]]||[[File:IEC style fuse.svg|100px|center]]
|-
|-
| Antenna|| — ||colspan=2|[[File:IEC Antenna.svg|30px|center]]
| Fuse||Amp||
|-
|-
| Antenna|| — ||
| Earth|| — ||colspan=2|[[File:IEC style earth.svg|50px|center]]
|-
|-
| Earth|| — ||
| Chassis ground|| — ||colspan=2|[[File:IEC style chassis ground.svg|50px|center]]
|-
|-
| Chassis ground|| — ||
| Wires crossing and junction|| — ||[[File:Wire Cross.svg|50px|center]]||[[File:Wire E.svg|50px|center]]
|}
|}


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== Further reading ==
== Further reading ==
== External links ==
== External links ==
[[Category:Electronic symbols]]
[[Category:Fundamentals, units and symbols]]
{{stub}}
{{stub}}

Revision as of 12:56, 11 June 2024

Electronic symbols are graphical representations used to depict electronic components, devices, and circuits in circuit diagrams and schematics. These symbols help engineers, technicians, and hobbyists communicate and understand the design and functionality of electronic circuits. Electronic symbols should be intuitive, allowing users to grasp their meaning at a glance.

Common electronic symbols

These symbols are standardized, and various organizations, such as the International Electrotechnical Commission (IEC) and the Institute of Electrical and Electronics Engineers (IEEE), provide guidelines for their use. It's essential to understand these symbols when reading or creating circuit diagrams to design and troubleshoot electronic circuits. The following is a selection of some of the most common symbols.

Component Unit Symbol
Resistor, IEEE and IEC style Ohm
Potentiometer, IEEE and IEC style Ohm
Trimmer resistor, IEC style Ohm
Capacitor Farad
Polarised capacitor Farad
Variable capacitor Farad
Trimmer capacitor Farad
Inductor Henry
Magnetic core inductor Henry
Transformer with two secondary windings  — 
Quartz crystal Herz
Diode  — 
Schottky diode  — 
Zener diode  — 
Varactor diode  — 
LED  — 
NPN bipolar junction transistor  — 
PNP bipolar junction transistor  — 
N-channel JFET  — 
P-channel JFET  — 
Operational Amplifier  — 
Microphone, IEEE and IEC style Ohm
Loudspeaker Ohm
Single cell and battery Volt
Incandescent light bulb Watt
Voltmeter and ammeter
Push-to-make switch, push-to break switch, IEEE style  — 
SPST and SPDT switch  — 
DPST and DPDT switch  — 
DPST and DPDT relay  — 
TS and TRS jack socket  — 
DC barrel connector, positive tip  — 
Voltage source and current source  — 
Fuse, IEEE and IEC style Amp
Antenna  — 
Earth  — 
Chassis ground  — 
Wires crossing and junction  — 

See also

References

Further reading

External links

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