XR-E Thanks - Can anyone ID which LED fits this 50mm Three Up??? - XR-E

Anyone got an idea which LED this PCB takes?

1

Here's the footprint measurements

pads

Center pad, 6mm x 7mm Width of all pads 10mm

Anyone know whick LED this takes? Cree? SSC? I have no idea.

Excuse the arrows, I was just doing a quickie drawing and the lines had arrows. I just meant to use straight lines. The arrows don't mean anything. The lines just mean distance between, if you get my meaning. Sorry...

XR-E

Looks about the right size for xr-e, I think…

Woody

I think that's for XM-Ls

I think you're right. The size seems about right.

XML is 2.8*4.8.

XRE is 5.6*7.

SST50 is 5.6*6.5.

Looks like XR-E to me.

XR-E was my first guess, but I couldn't figure out why anyone would use XR-E with a TIR optic, so I was stumped on what else would fit it. Definitely too big for XM-L, the center pad would be as big as a whole XM-L.

THanks guys. Now I need to figure out if I really want to fit 3 XR-E in a Maglite. Doesn't seem worth it, LOL.

The first bike light i ever made was a triple xr-e with ledil tir lens in a Mag head. Lovely beam, nice and throwy….give it a try! :slight_smile:

Woody

I stand corrected.

I was sold this as a "triple XM-L" board. Oh, well.

I don’t think it’s an XR-E. The length of an XR-E is 7mm, meaning you can put it sideways across the central heat pad as shown in Justin’s photo and it’ll fit. I looked up the SST-90 and its 10mm long by 9mm wide with a 5mm heat pad so it’ll almost fit. I’m guessing its for a triple SST-90.

It’s too thin of a PCB for SST-90, but an SST-90 will fit and work on an XR-E star (or an XR-E 3-up). It’s been done more than once, the footprint is so close that it works. I believe these might have been some old stock lying around, back when XR-E was “the thing”. I will probably just use it for XM-L. Don’t ask me how, I will tell you when I get there.Wink

Edit: First guess was wrong… Still looking…

XT-E. Cheap to
http://www.ledgroupbuy.com/xt-e/

Definately not XT-E. The XT-E is only 3.5mm x 3.5mm. You could put 6 of them on the area covered by that footprint.

I wold say that this fits some generic chinese LED and maybe similar SSC Seoul ones as I have had 100mm*12led TIR optic with PCB that was using a same looking footprints and it fit. I think that this is just easier for them to make square pads.

http://dx.com/p/1w-90lm-8000k-white-light-led-bulb-3-2v-44432?item=2

http://dx.com/p/ssc-seoul-p4-u-bin-sw0-bare-emitter-2026?item=4

EDIT: looking at the dimensions and probably I’m wrong. But maybe it fits both XRE and China led

A triple SST-90. You could redo the SST-90 mag you did but with 3, maybe you'll be able to reach 2 miles. ;)

I think you’ve got the SST-50 and the SST-90 mixed up. The SST-50 has almost the same footprint of the XR-E and you can get away with reflowing an SST-50 onto an XR-E star. Both the XR-E and SST-50 will sit on the heat pad of an SST-90 leaving the positive and negative contacts exposed. It’s a lot larger than either the SST-50 and the XR-E.

I’ve never been confused in my life, LOL.

Is this Tuesday or Thursday, I can't remember...

I will go measure the pads with the calipers. I just used a ruler for the first measurements.

***I measured again. It's correct.