I am working on a project that requires both of these parts, but was suprised to see that the only one stocked by almost everywhere I looked was the 3003. The 3003 is the part that actually holds the battery, and gets the positive charge from it. The 2990 is a small piece that gets the negative charge. As I said, I figured if they would have one, they would have both...but that is not the case. Is their some other part tht is used, or do they make the 2990 out of just a piece of scrap wire?
Thanks
https://www.electro-tech-online.com/custompdfs/2005/06/p09.pdf
(2990 sheet)
Thanks
https://www.electro-tech-online.com/custompdfs/2005/06/p09.pdf
(2990 sheet)