Electronic Symbols

Video - How to Read a Schematic

The following is an introductory level video for how to read a schematic. A list of symbols is given below.

Electronic symbols

The following are electronic symbols used in schematics.

Categories of the electronic symbols below
Power and ground Switches
Resistors Capacitors
Diodes Transistors
Relays Coils/inductors
Transformers Fuses
Meters Connectors
Audio

Symbol Name
  Power and ground    (Categories)
Electronic symbol for a battery (one cell). Battery (one cell). Negative on the left.
Electronic symbol for a battery. Battery. Negative on the left.
Electronic symbol for a solar cell Solar cell
Electronic symbol for an Earth ground. Earth ground
Electronic symbol for a chassis ground. Chassis ground
Electronic symbol for an signal ground. Signal ground
  Switches    (Categories)
Electronic symbol for a switch (SPST). Normally Open (NO). Switch (Single Pole, Single Throw - SPST). Normally Open (NO).
Electronic symbol for a switch (SPST) Switch (Single Pole, Single Throw - SPST). Normally Closed (NC).
Electronic symbol for a switch (SPDT) Switch (Single Pole, Double Throw - SPDT).
Electronic symbol for a pushbutton switch Pushbutton switch. Normally Open (NO)
Electronic symbol for a pushbutton switch Pushbutton switch. Normally Closed (NC)
  Resistors    (Categories)
Electronic symbol for a resistor (IEEE standard) Resistor (IEEE standard)
Electronic symbol for a resistor (IEC standard) Resistor (IEC standard)
Electronic symbol for a potentiometer (IEEE standard) Potentiometer (IEEE standard)
Electronic symbol for a potentiometer (IEC standard) Potentiometer (IEC standard)
Electronic symbol for a photoresistor Photoresistor/Light dependent resistor (LDR)
Electronic symbol for a photoresistor Photoresistor/Light dependent resistor (LDR)
Electronic symbol for a thermistor (NTC - Negative Temperature Coefficient type) Thermistor (NTC - Negative Temperature Coefficient resistor)
Electronic symbol for a thermistor (PTC - Positive Temperature Coefficient type) Thermistor (PTC - Positive Temperature Coefficient resistor)
  Capacitors    (Categories)
Electronic symbol for a capacitor (non-polarized) Capacitor (non-polarized)
Electronic symbol for a variable capacitor Variable capacitor
Electronic symbol for a polarized capacitor (e.g. electrolytic) Capacitor (polarized, e.g. electrolytic)
Electronic symbol for a polarized capacitor (e.g. electrolytic) Capacitor (polarized, e.g. electrolytic)
  Diodes    (Categories)
Electronic symbol for a diode Diode
Electronic symbol for a zener diode Zener diode
Electronic symbol for a Schottky diode Schottky diode
Electronic symbol for an LED LED (Light-Emitting Diode)
  Transistors    (Categories)
Electronic symbol for an NPN transistor Transistor (NPN)
Electronic symbol for an NPN transistor Transistor (NPN)
Electronic symbol for an PNP transistor Transistor (PNP)
Electronic symbol for a PNP transistor Transistor (PNP)
Electronic symbol for a MOSFET N-channel, enhancement-mode MOSFET (N-channel, enhancement-mode)
Electronic symbol for a MOSFET P-channel, enhancement-mode MOSFET (P-channel, enhancement-mode)
Electronic symbol for a MOSFET N-channel, enhancement-mode, no bulk MOSFET (N-channel, enhancement-mode, no bulk)
Electronic symbol for a MOSFET P-channel, enhancement-mode, no bulk MOSFET (P-channel, enhancement-mode, no bulk)
Electronic symbol for a MOSFET N-channel, enhancement-mode, no bulk MOSFET (N-channel, enhancement-mode, no bulk)
Electronic symbol for a MOSFET P-channel, enhancement-mode, no bulk MOSFET (P-channel, enhancement-mode, no bulk)
Electronic symbol for a MOSFET N-channel, depletion-mode MOSFET (N-channel, depletion-mode)
Electronic symbol for a MOSFET P-channel, depletion-mode MOSFET (P-channel, depletion-mode)
  Relays    (Categories)
Electronic symbol for a SPST relay Relay (Single Pole, Single Throw - SPST). Normally Open (NO).
Electronic symbol for a SPST relay Relay (Single Pole, Single Throw SPST). Normally Closed (NC).
Electronic symbol for a SPDT relay Relay (Single Pole, Double Throw - SPDT)
  Coils/inductors    (Categories)
Electronic symbol for an inductor/coil Inductor/coil
Electronic symbol for an inductor/coil Inductor/coil (alternate style)
Electronic symbol for an inductor/coil with a solid core (e.g. iron core) Inductor/coil (with solid core e.g. iron core)
Electronic symbol for an inductor/coil with metal particles (e.g. ferrite core) Inductor/coil (with metal particle core e.g. ferrite core)
Electronic symbol for a variable inductor/coil Variable inductor/coil
Electronic symbol for a solenoid Solenoid
  Transformers    (Categories)
Electronic symbol for a transformer with a core Transformer (with a core)
Electronic symbol for a Transformer (alternate style)
Electronic symbol for an air core transformer Transformer (with an air core)
Electronic symbol for a transformer with a tap Transformer (with a tap)
  Fuses    (Categories)
Electronic symbol for a fuse (IEEE/ANSI standard) Fuse (IEEE/ANSI standard)
Electronic symbol for a fuse (IEEE/ANSI standard) Fuse (IEEE/ANSI standard)
Electronic symbol for a fuse (IEEE/ANSI standard) Fuse (IEEE/ANSI standard)
Electronic symbol for a fuse (IEC standard) Fuse (IEC standard)
  Meters    (Categories)
Electronic symbol for a voltmeter Voltmeter
Electronic symbol for a ammeter Ammeter
Electronic symbol for a ohmmeter Ohmmeter
Electronic symbol for a wattmeter Wattmeter
  Connectors    (Categories)
Electronic symbol for a jack socket, earphone connector Jack socket/phone connector
Electronic symbol for a jack socket for audio Jack socket/phone connector. Plug enters from the right.
Electronic symbol for a 6x1 pin header Pin header 6x1
Electronic symbol for a 6x2 pin header Pin header 6x2
  Audio    (Categories)
Electronic symbol for speaker Speaker
Electronic symbol for buzzer Buzzer

More added over time...

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