# Cathode LED

**URL:** <https://community.sparkfun.com/t/cathode-led/45850>\
**Category:** LEDs\
**Created:** [June 30, 2023, 7:39pm UTC](https://community.sparkfun.com/t/cathode-led/45850 "2023-06-30T19:39:27Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![kslifter](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@kslifter](https://community.sparkfun.com/u/kslifter)\
**Post date:** [June 30, 2023, 7:39pm UTC](https://community.sparkfun.com/t/cathode-led/45850/1 "2023-06-30T19:39:27Z")

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I am building a mouse and it is my first big electronics project and it calls for (2) 3mm bi-color Cathode LEDs, but I didn’t see any LEDs on the site that were labeled as Cathode that matched what the LEDs in the projects look like and the size.

Any advice would be great.

Thanks,

-Ian

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**Author:** ![kslifter](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@kslifter](https://community.sparkfun.com/u/kslifter)\
**Post date:** [June 30, 2023, 8:21pm UTC](https://community.sparkfun.com/t/cathode-led/45850/2 "2023-06-30T20:21:10Z")

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This is what it looks like in the parts list

 ![](https://canada1.discourse-cdn.com/sparkfun/original/2X/c/c564c3dd4dda560f24fdc8a0baef9a0cc8f21d4b.jpeg)[https://i.imgur.com/O6UqJG0.jpg](https://community.sparkfun.com/uploads/short-url/sadWTpMNOqECgRfVR68hMwyQCYH.jpeg)

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**Author:** ![YellowDog](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/yellowdog/32/1782_2.png) [@YellowDog](https://community.sparkfun.com/u/YellowDog)\
**Post date:** [June 30, 2023, 10:06pm UTC](https://community.sparkfun.com/t/cathode-led/45850/3 "2023-06-30T22:06:28Z")

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I think they mean _common cathode_ LEDs. I don’t think sparkfun carries any of those but they are common parts and shouldn’t be hard to find at other electronics stores.

Something like this might work for you:

[https://m.aliexpress.us/item/2251832260 … 4itemAdapt](https://m.aliexpress.us/item/2251832260958414.html?html=static&gatewayAdapt=glo2usa4itemAdapt)

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<div class="post-metadata">

**Author:** ![kslifter](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@kslifter](https://community.sparkfun.com/u/kslifter)\
**Post date:** [July 3, 2023, 3:00am UTC](https://community.sparkfun.com/t/cathode-led/45850/4 "2023-07-03T03:00:34Z")

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Thanks for the feedback. I was hoping SparkFun carried them simply because I don’t need 100 of them, lol. I found some on Amazon, but I’ll be paying $12 for 100 of each when I only need 1 of each.

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**Author:** ![YellowDog](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/yellowdog/32/1782_2.png) [@YellowDog](https://community.sparkfun.com/u/YellowDog)\
**Post date:** [July 3, 2023, 4:03am UTC](https://community.sparkfun.com/t/cathode-led/45850/5 "2023-07-03T04:03:21Z")

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Here are some more.

[https://www.jameco.com/z/UT0362-21-D61- … 56946.html](https://www.jameco.com/z/UT0362-21-D61-R-Jameco-ValuePro-LED-Bi-Color-Green-and-Red-White-Diffused-3mm-T-1-2-7mcd-13-3mcd_156946.html)

You could add a few other items to your cart and stock up, that helps on the shipping a bit.