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Colour Changing 5mm Diffused LED - 540mCd

0.48
Standard brightness and 5mm in size, this Colour Changing LED cycles gently through a sequence of colours, making it ideal for mood lighting, toys and ornaments

Availability: In Stock.

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This LED slowly cycles through various colours, making it ideal for mood lighting, toys or ornaments.

Operating voltage: 2.8V to 5V (this LED does not require a current limit resistor)
Current (ave): 20mA
Brightness: Red: 330 mCd Blue 500 mCd Green 750 mCd
Lens: Diffused
Manufacturer part: OSTD1DA5B32A


Click here for a tutorial describing how colour changing LEDs work.


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Questions:

Posted by Sam, Thursday, 22 September 2016 on product Colour Changing 5mm Diffused LED - 540mCd
  • 0
    vote
    A:

    Hi Sam, The colour changing LED’s are rated to 5V’s so you wouldn’t require a resistor for these. In terms of putting them in parallel you would need to make sure that you have enough current to supply the LED’s. Each LED takes between 20-25mA, and some of the colours can take up to 50mA’s.

    Posted by Michael Lockhart on Thursday, 22 September 2016
Posted by Andrew Noble, Sunday, 20 April 2014 on product Colour Changing 5mm Diffused LED - 540mCd
  • 0
    vote
    A: The viewing angle is 30 degrees. Just be aware that if you are using 40 of them then you will need at least a 1A power supply.
    Posted by Aaron Sturman on Monday, 21 April 2014
Posted by Tony Fellows, on product Colour Changing 5mm Diffused LED - 540mCd
  • 0
    vote
    A:

    Hi Tony, The issue with connecting these to a supply voltage higher than 5V and then trying to limit this using a resistor is that the LED works by turning on different amounts of red, green & blue LEDs therefore to get red just the red LED is on to get purple the red and blue LED are on. This means that the current consumption of the LED when purple will be twice the current of the red as twice as many colours are on. The way you would normally work out the current limit resistor is to look at how much current the LED takes and the voltage that would drop across the resistor, the issue is that whilst there would be 4V over the resistor the current is variable. This means that you can’t work out what the value of the resistor using theory. The better option is to use a 5V regulator to drop the 12V’s down to the 5V supply that these LED’s can handle.

    Posted by Michael Lockhart on Friday, 31 March 2017

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