IDENTIFY THE ANODE/CATHODE of LED's
Intro: IDENTIFY THE ANODE/CATHODE of LED's
IDENTIFY THE ANODE/CATHODE of LED's
While referring to any schematic involving led's we sometimes get confused with the identification of the terminals. So for identification , led’s comes with a unique way to identify its terminals as Anode or Cathode. Sometime the diode symbol creates confusion too.Identifing a LED's the cathode and anode of a led is very easy by looking inside.
LED's or Light Emitting Diode's don’t come with any labeling on it to identify Cathode(-ve,GND) or Anode(+ve).
I hope the figure below can solve this problem of identification.
Notice the picture carefully and compare it with the LED diode symbol, that should tell which one is –ve and +ve terminal. As they have to be crystall clear to glow so they don’t have any labeling on it , so the only way to know is either to test it with a multimeter or by carefully observing inside the led . The larger end inside the led is -ve and the shorter one is +ve, that is how we find out the polarity of a LED
Save this picture for reference.
NOTE: I took this picture myself from my camera , Please Do not mind for image clarity ,so i have put some labellings also .
THANKS FOR READING
RON
Rakesh Mondal
www.rakeshmondal.info
CATHODE AND ANODE OF LED
******************************************************************************
While referring to any schematic involving led's we sometimes get confused with the identification of the terminals. So for identification , led’s comes with a unique way to identify its terminals as Anode or Cathode. Sometime the diode symbol creates confusion too.Identifing a LED's the cathode and anode of a led is very easy by looking inside.
LED's or Light Emitting Diode's don’t come with any labeling on it to identify Cathode(-ve,GND) or Anode(+ve).
I hope the figure below can solve this problem of identification.
Notice the picture carefully and compare it with the LED diode symbol, that should tell which one is –ve and +ve terminal. As they have to be crystall clear to glow so they don’t have any labeling on it , so the only way to know is either to test it with a multimeter or by carefully observing inside the led . The larger end inside the led is -ve and the shorter one is +ve, that is how we find out the polarity of a LED
Save this picture for reference.
NOTE: I took this picture myself from my camera , Please Do not mind for image clarity ,so i have put some labellings also .
THANKS FOR READING
RON
Rakesh Mondal
www.rakeshmondal.info
CATHODE AND ANODE OF LED
******************************************************************************
9 Comments
xman2 12 years ago
R0tten 4 years ago
TheOriginalNerd 8 years ago
with new LED's you can tell by the legs; the longer leg is the Anode. Also, on some LED's the "bent" leg is the Anode. "Bent" means they put an angle in the leg near the top.
dharmar5 8 years ago
thanq
Mosfet510 9 years ago
Doc_Cottom 10 years ago
I just learned something.... do not use super glue to hold LEDs in place. It does something to the plastic the LED is made of, and renders it ruined.
dannystaple 10 years ago
kelvinmead 10 years ago
this would make this even less confusing!
ron.rakesh.mandal 10 years ago