LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays.
This is a very standard green LED. The lens is 3mm in diameter, and is diffused.
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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It is just your average LED but with two "Perks". The first perk is that it is only 3 millimeters (Mm) in diameter which is nice if it isn't the main focus of the project. This is great for indicator lights or just to brighten up your project. The second perk is that it only requires 2 volts. This is great for low power projects. Normal LED's usually use 3.3-5 volts which may not seem like a huge difference but when you need a lighter battery it is nice to be able to preserve the battery a little bit. And thank to everyone who read this for putting up with my rambling.
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does anyone know if i could use it to replace the red LED on a gameboy colour so far i have only taken apart, clean, and then put back electronics and i thought replacing a simple LED would be easy and only require to desolder or wedge out the LED (desoldering it will probably be the safest) and cut the metal to length and solder it
never mind shipping that's not in the US is really expensive i was going to buy a LED kit instead but £46 for postage no way
£46? Over to Helsinki it was just a few dollars. Are you sure you don't have a courier shipping option selected by mistake, or have some other products in your cart that would prevent the USPS international express option to be unavailable?
Note that if all you want is a single 3mm LED, it's probably more economical to just order one local, regardless :)
Oh, and to answer your question - I'm guessing that would be fine, red and green LEDs have very similar forward voltage. There's a surprising amount of LED replace / mod / 'pimp out' guides on the internet for the Gameboy Color, if you haven't looked at any of those, it might be good to do so :)
One of the most popular items doesn't have any comments? Hmm. Does this use 5V? Sorry if this is stupid :|
No - if you applied 5V directly, it would quickly self-destruct. You'll want to stay around 2.2V or, preferably, current-limit it to ~18mA, e.g. using a resistor. See: LED calculator: current limiting resistor value ( or do it by hand :) )
so if i apply 5v with a 180ohm resistor it would work great?
Yep, that should be good :)