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A comprehensive list of circuit schematic symbols for various electrical components. It includes both common and alternate symbols for components such as ammeters, capacitors, diodes, fuses, and more. Each symbol is accompanied by its corresponding component name.
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Note: The schematics symbols for most major electrical components can be found in this table. However, each component may have numerous possible representations. In cases where there is more than one common symbol we have tried to give an alternate representation.
COMPONENT SYMBOL ALTERNATE
Ammeter
And Gate
Antenna, Balanced
Antenna, General
Antenna, Loop, Shielded
Antenna, Loop, Unshielded
Antenna, Unbalanced
Attenuator, Fixed
Attenuator, Variable
Battery
Capacitor, Feedthrough
Capacitor, Fixed, Nonpolarized
Capacitor, Fixed, Polarized
Capacitor, Ganged, Variable
Capacitor, General
Capacitor, Variable, Single
Capacitor, Variable, Split-Stator
Cathode, Cold
Cathode, Directly Heated
Cathode, Indirectly Heated
Cavity Resonator
Cell
Circuit Breaker
Coaxial Cable
Crystal, Piezoelectric
Delay Line
Diode, General
Diode, Gunn
Diode, Light-Emitting
Diode, Photosensitive
Diode, Photovoltaic
Diode, Pin
Diode, Varactor
Diode, Zener
Directional Coupler
Exclusive-Or Gate
Female Contact, General
Ferrite Bead
Fuse
Galvanometer
Ground, Chassis
Ground, Earth
Operational Amplifier
Or Gate
Outlet, Utility, 117-V
Outlet, Utility, 234-V
Photocell, Tube
Plug, Phone, 2-Conductor
Plug, Phone, 3-Conductor
Plug, Phono
Plug, Utility, 117-V
Plug, Utility, 234-V
Positive Voltage Connection
Potentiometer
Probe, Radio-Frequency
Rectifier, Semiconductor
Rectifier, Silicon-Controlled
Rectifier, Tube-Type
Relay, DPDT
Relay, DPST
Relay, SPDT
Relay, SPST
Resistor
Resonator
Rheostat
Saturable Reactor
Shielding
Signal Generator
Speaker
Switch, DPDT
Switch, DPST
Switch, Momentary-Contact
Switch, Rotary
Switch, SPDT
Switch, SPST
Terminals, General, Balanced
Terminals, General, Unbalanced
Test Point
Thermocouple
Thyristor
Transformer, Air-Core
Transformer, Iron-Core
Transformer, Tapped Primary
Transformer, Tapped Secondary
Transistor, Bipolar, npn
Transistor, Bipolar, pnp
Transistor, Field-Effect, N-Channel
Transistor, Field-Effect, P-Channel