R
ANSI/IEEE resistor symbol
IEEE-oriented graphical reference for resistor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
The electrical reference
Electrical drawings.
Every detail, explained.
Symbols, protection codes and equipment references for switchgear, switchboards, switchrooms and microgrids.
Try
1095 entries · Original illustrations
Electronic components
R VAR
ANSI/IEEE variable resistor symbol
IEEE-oriented graphical reference for variable resistor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
POT
ANSI/IEEE potentiometer symbol
IEEE-oriented graphical reference for potentiometer, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
LDR
ANSI/IEEE light-dependent resistor symbol
IEEE-oriented graphical reference for light-dependent resistor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
VDR
ANSI/IEEE varistor symbol
IEEE-oriented graphical reference for varistor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
SHUNT
ANSI/IEEE current-measuring shunt symbol
IEEE-oriented graphical reference for current-measuring shunt, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
C
ANSI/IEEE capacitor symbol
IEEE-oriented graphical reference for capacitor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
C ELEC
ANSI/IEEE electrolytic capacitor symbol
IEEE-oriented graphical reference for electrolytic capacitor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
C FEED
ANSI/IEEE feedthrough capacitor symbol
IEEE-oriented graphical reference for feedthrough capacitor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
C ADJ
ANSI/IEEE adjustable capacitor symbol
IEEE-oriented graphical reference for adjustable capacitor, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
D
ANSI/IEEE diode symbol
IEEE-oriented graphical reference for diode, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
PD
ANSI/IEEE photodiode symbol
IEEE-oriented graphical reference for photodiode, with public vendor evidence and drawing-reading notes.
IEEE / ANSI
Showing 12 of 55
Read the drawing, not just the mark
Small details. Different meanings.
Understand symbols, equipment tags and function numbers—and know when a generic object needs a manufacturer drawing.