RGB LED (Common Cathode) (Pack of 10)

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RGB LED common cathod
RGB LED (Common Cathode) (Pack of 10) - Robocraze.com
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  • RGB LED common cathod
  • RGB LED (Common Cathode) (Pack of 10) - Robocraze.com

RGB LED (Common Cathode) (Pack of 10)

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  • Convenient for DIY and repair equipment and electrical appliances
  • Perfect use for home, office and industry electrical equipment and electrical appliances.
  • Red: 1000-1200 nm wavelength, Green: 3000-5000 nm, Blue: 2000-3000 nm

RGB LED (Common Cathode) (Pack of 10)

Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color and a common cathode. Use this one LED Cathode for three status indicators or pulse width modulate all three and get mixed colors.

Note: As of 1/2010, the pins in the datasheet are correctly labeled. Pin 3 is Green and Pin 4 is Blue. Those purchased prior to then will have Blue on Pin 3 and Green on Pin 4.

RGB Common Cathode LED makes some beautiful colors with this  10mm tri-color LED with separate red, green and blue LED chips inside! They make a nice indicator, and fun to color-swirl. We like RGB LEDs because they color mix inside instead of appearing as 3 distinct LEDs. To light up a common cathode RGB LED, you will have to connect its common terminal to the negative terminal of the power source.

These are Common-Anode type which means you connect one pin to 5V or so and then tie the other three legs to the ground through a resistor. We carry and use CA more than CC because multi-LED driver chips are often designed exclusively for CA and can’t be used with Common-Cathode.

Package Includes:

  • 10 x RGB LED (Common Cathode)

Specifications

Forward Voltage (RGB): (2.0, 3.2, 3.2)V
Luminosity (RGB) (800, 4000, 900)mcd
Dimensions  5 x 4 x 3cms 
Weight  15 grams

Frequently Asked Questions

1. Is this RGB LED common anode or cathode? 

  • This RGB LED is a common cathode. If the LED lights up with the red tip on the longest lead and the black tip on one of the other leads, you have a common anode RGB LED. You have a common cathode, if the LED lights up with the black tip on the longest lead and the red tip on one of the other leads.

2. How do you use common cathode RGB LED?

  • To turn on a common cathode RGB LED, connect its common terminal to the power source's negative terminal. Connect the RED colour terminal to the positive terminal of the power source to turn on the RED colour. It will also function in the same way as a standard anode RGB LED.

3. What is the common terminal of a common cathode RGB?

  • Cathode refers to the negative terminal. In this type, all the cathode terminals of the internal colored LEDs (red, green, and blue) are connected to the cathode terminal of the RGB LED as shown in the figure.

4.How do you determine the negative leg of an RGB LED?

  • If the LED has two leads with equal lengths, you can inspect the metal plate inside the LED. The smaller plate represents the positive (anode) lead, while the larger plate represents the negative (cathode) lead.