Photodiode symbol
Also called Light sensor diode, Photo diode
A diode that conducts in proportion to the light falling on it. The arrows point in, the opposite of an LED.
ANSI / IEEE
IEC 60617What the photodiode symbol means
A diode that conducts in proportion to the light falling on it. The arrows point in, the opposite of an LED.
ANSI and IEC symbols
Where you see it
Light sensors, optical receivers, smoke detectors and encoders.
Related symbols
Frequently asked questions
What does the photodiode symbol look like?
On ANSI drawings: A diode with two arrows pointing in. In IEC 60617: The same diode with incoming arrows.
Is the photodiode symbol the same in IEC and ANSI?
Yes, it is drawn the same way in most legends.
Where is a photodiode used?
Light sensors, optical receivers, smoke detectors and encoders.
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