I just received a 10-pack of the awesome 10mm RGB LEDs. They work great, but they don't seem to conform to the data sheet.

I measure 4.3mm across the pins from outside edge to outside edge and .5mm lead diameter. That leaves (4.3 - 4 * .5) / 3 = 2.3 / 3 = .766666 mm or about 3/4 mm for each gap. The pin spacing is labeled as 1.25 mm in the data sheet. Can anyone else confirm this?


Thanks
Justin

Yes, that does look like an error in the datasheet. In fact, that's one of the *least clear* dimensioned drawings that I've ever seen. (What the heck is that 2.54 dimension supposed to be?) I'll see if I can get the manufacturer to provide a better datasheet.

I do have a printed catalog from them which has a *good* drawing for the 5 mm version, at least, and that does have the same pin arrangement. It looks like the pin-to-pin center-to-center dimension is supposed to be 1.4 mm, so that the edge-to-edge spacing should be about 3*1.4=4.2 mm + 0.5 mm for the pin width, or 4.7 mm total. The gap is then supposed to be 1.4-0.5 = 0.9 mm. Honestly I think that your readings agree with *these* numbers fairly well, given the typical variation in LEDs-- 0.4 mm overall would probably be within the sum of normal variation and my measurement error.

I am sorry for the trouble, and I'll see if I can get a better datasheet to post.

Thanks, that would be excellent! I agree on the drawing.

Justin

the way I see it, 1.25 is the center-to-center spacing between individual pins.
It should actually be 1.27mm (0.05".
The spacing between alternate pins (1-3 or 2-4) will then be 2.54mm (0,10".
And the spacing between pins 1 and 4 will then be 1.27x3 = 3.81mm (0.15".
Add 0.25mm on each end (radius of each lead) and you get 3.81 + 0.25 + 0.25 = 4.31mm

Anool : anool.m@gmail.com

We've just posted an updated datasheet. I am sorry for the confusion and for the errors in the previous version.