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Electrical reference

Electronic Components

Electronic components table with images of common electrical and electronic components: wire, switch, lamp, resistor, capacitor, inductor, relay, transistor, diode, battery, ...

Electrical and electronic components table

Component Image Component Symbol Component Name
Wire
Toggle switch
Pushbutton switch
Relay
Jumper
Dip switch
Resistor
Variable resistor / Rheostat
Potentiometer
Capacitor
Variable capacitor
Electrolytic capacitor
Inductor
Battery
Voltmeter
Lamp / Light bulb
Diode
BJT Transistor
MOS transistor
Optocoupler/optoisolator
Electric motor
Transformer
Operational amplifier/ 741
Crystal oscillator
Fuse
Buzzer
Loudspeaker
Microphone
Antenna / aerial

Passive components

Passive components do not need additional power source to operate and can not have gain.

Passive components include: wires, switches, resistors, capacitors, inductors, lamps, ...

Active components

Active components need additional power source to operate and can have gain.

Active components include: transistors, relays, power sources, amplifiers, ...