You don't have to worry about adding a resistor to an LED if you get an LED with a built in resistor! This pack of 25 green 5mm LEDs will help alleviate any frustrations you've had with accidentally burning them out by having a resistor in the diode itself. Each LED has an operating voltage range of 3.0V to 5V to help make your next project shine!
Each pack of these LEDs are conveniently bagged in reusable ESD safe packaging to make sure nothing accidentally gets damaged before you are able to use them.
If you look closely at the image below, there is a small, black square IC on the post to limit the current on these types of LEDs.
For more information, check out our LED tutorial.
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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I can confirm that these draw 14mA at 5V, and 5.7mA at 3.3V. Given that the red ones pull 18mA, I'd hazard a guess that the internal resistor in these is about 150Ω. At 5.7mA, this is safe to use with the SAMD21/Zero/M0 boards, although I would avoid driving one continuously.