LED light emitting diode

LIGHT EMITTING DIODE
      
       LED is basic level electronics component and LED have wide range of applications. LED used in digital clocks, TVs, trafic signals lights, Low power home bulbs and more......

 
LED have two pins
     1. positive
     2. negative

normally  long lead is positive
                 short lead is negative

LED types

size:
      0.5mm LED
      0.3mm LED
colors:
       all colors LED available
 
Multicolor LED:
                         2 pin (when give power supply glow in all colors )

                         4 pin (red,blue, green and conman GND pin    )
         
LED pin identification

In LED have large plate and small plate
                                               Large plate and Flat is always Cathode
                                               small plate is always Anode

      .
 



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LED APPLICATIONS

 Display is one of best application of LEDs

mobile displays
TV displays
seven segment displays