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RGB 5mm Water Clear LED - 45deg - 2100mCd - Cmn Cathode

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This LED has red, green and blue elements and a common cathode. Control each element independently and manipulate the energy levels of each to form any colour

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This 5mm RGB LED contains three LED elements (red, green and blue). Each element can be controlled independently. By varying the amount by which each element is turned on any colour can be created. They are ideal for design colour controlled lighting effects.

This LED has a common cathode which is the longest leg (negative).

Download datasheet for this partpdf_icon.gif

Forward voltage, red element: 1.9 - 2.5V
Brightness, red element: 1500 - 2300 mCd
Forward voltage, green element: 2.9 - 3.5V
Brightness, red element: 2000 - 2700 mCd
Forward voltage, blue element: 2.9 - 3.5V
Brightness, blue element: 1500 - 2200 mCd
Angle: 45 degrees
Lens: Water clear

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Questions:

Posted by Bradley Michael Collins, Wednesday, 22 February 2017 on product RGB 5mm Water Clear LED - 45deg - 2100mCd - Cmn Cathode
  • 0
    vote
    A:

    Hi Bradley, Common Cathode simply means that all three LED’s within the package all share the same negative leg. As such you would connect the common cathode to the negative of the circuit, then you would connect each remaining leg through a resistor to the input of what device you are using to turn the signal high and low. We have used an RGB in the inventor’s kit in this experiment, https://www.kitronik.co.uk/blog/inventors-kit-experiment-10-help  

    Posted by Michael Lockhart on Wednesday, 22 February 2017
Posted by Paul, Friday, 9 December 2016 on product RGB 5mm Water Clear LED - 45deg - 2100mCd - Cmn Cathode
  • 0
    vote
    A:

    Hi Paul, Yes you would still need to put a resistor in line will each leg of the RGB LED apart from the common leg. We use a similar RGB LED in the inventor’s kit (this uses a between 3 and 5V’s as a supply) and use a 470 Ohm resistor to protect each leg of the LED.

    Posted by Michael Lockhart on Friday, 9 December 2016
Posted by Trevor Thomas, Wednesday, 10 February 2016 on product RGB 5mm Water Clear LED - 45deg - 2100mCd - Cmn Cathode
  • 0
    vote
    A:

    Hi Trevor, the easiest way to probably do this so you can select which colour you have on is to use three toggle switches, so you would connect the one switch to each leg associated to turning a colour on and off. This way when you switched the toggle on you would turn that colour of the LED on. The fourth leg of the LED would be connected to ground on the circuit and this would need to be constantly connected.

    Posted by Michael Lockhart on Wednesday, 10 February 2016
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    vote
    A:

    Hi Mark, An RGB works in a similar way to a colour changing LED, however you can control which LED is turned on and for how long. As such you would use a microcontroller to determine which LED is turned on and you would use PWM to then alter the amount of time it is on for, the following explains how this works in a normal colour changing LED, https://www.kitronik.co.uk/blog/how-colour-changing-leds-work/

    Posted by Michael Lockhart on Wednesday, 26 April 2017
  • 0
    vote
    A: Hello, The product is a RGB LED and has a common cathode connection. The shortest product name is a 5mm RGB LED Common Cathode. But the product name we state at the top of the page is correct and provides further details on the item.
    Posted by Michael Lockhart on Tuesday, 24 October 2017
  • 0
    vote
    A: Hi NA MYUNG, Unfortunately we are unable to send a sample of this item out, sorry.
    Posted by Michael Lockhart on Friday, 27 October 2017

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