Resistor Symbols

The resistors are elecrical passive components manufactured specifically to provide a given value of resistance to the passage of electric current. Its unit of measurement is the ohm and is represented by the greek letter omega.

Symbols of Resistor / Electrical Resistance

Symbol Description Symbol Description
Resistor symbol, IEC system Resistor
IEC system
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  Resistor symbol, NEMA system Resistor
NEMA system
Impedance symbol Impedance
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  Resistor array symbol Resistor array
e.g. 8 resistors
Symbol of Shunt resistor with current and voltage connections Shunt resistor with current and voltage connections   Resistor with sockets of current symbol Resistor with sockets of current
Resistor with fixed sockets symbol Resistor with fixed sockets   Nonreactive resistor symbol Nonreactive resistor
Not burnable resistor symbol Not burnable resistor   Resistor nonreactive symbol Resistor nonreactive
Protective resistor symbol Protective resistor
Makes the function of a fuse
  Attenuator symbol Attenuator
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Protective resistor symbol Protective resistor
Makes the function of a fuse
  Memristor symbol Memristor
Memory resistor
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Heating element symbol Heating element
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  Resistor array symbol Heating element

Symbols Variable & Adjustable Resistors

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Rheostat / Potentiometer, Variable resistor symbol Variable resistor
Rheostat / Potentiometer
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  Rheostat / Potentiometer, Variable resistor symbol Variable resistor
Rheostat / Potentiometer
Continuously variable resistor symbol Continuously variable resistor   Stepwise variable resistor symbol Stepwise variable resistor
Stepwise variable resistor symbol Stepwise variable resistor   Potentiometer symbol Potentiometer
Adjustable resistor symbol Adjustable resistor
Pre-set rheostat
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  Linear potentiometer symbols Linear potentiometer
Potentiometer with moving contact
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Adjustable resistor symbol Adjustable resistor
Pre-set rheostat
  Symbol of the potentiometer with moving contact and default settings Potentiometer with moving contact and default settings
Preset resistor symbol Pre-set resistor   Symbol of the resistor with moving contact and off position resistor with moving contact and off position
Variable resistor with carbon discs symbol Variable resistor with carbon discs
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Symbols of Special Resistors

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LDR - Photoresistor symbol LDR - Photoresistor
Light dependent resistor. By increasing the light intensity decreases resistance
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  LDR - Photoresistor symbol LDR - Photoresistor
The width is the side exposed to light
LDR - Photoresistor symbol LDR - Photoresistor
NEMA system
  LDR - Photoresistor symbol LDR - Photoresistor
NTC Resistor - Thermistor symbol NTC Resistor - Thermistor
Negative temperature coefficient
The resistance decreases with increasing temperature
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  NTC Resistor - Thermistor symbol PTC Resistor - Thermistor
Positive temperature coefficient
The resistance increases with increasing temperature
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NTC Resistor - Thermistor symbol NTC Resistor - Thermistor
NEMA system
  VDR - Varistor symbol VDR - Varistor
The voltage-dependent resistor
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Thermistor symbol Thermistor
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  VDR - Varistor symbol VDR - Varistor
VDR - Varistor symbol VDR - Varistor
The resistance decreases with increasing voltage
  VDR - Varistor symbol VDR - Varistor
VDR - Varistor symbol VDR - Varistor
NEMA system
  Magnetic resistor symbol Magnetic resistor
Its resistance depends on magnetic fields
Resistance thermometer, RTD symbol RTD
Resistance temperature detector
  Resistance thermometer, RTD symbol RTD
Resistance temperature detector
Iron-hydrogen resistor / Barretter symbol Iron-hydrogen resistor / Barretter
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Picture gallery of resistor
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