I just received a 16-Mode 3W 3.7V 7135 Circuit Board
from DX and would like to add a 4th 7135. Is there anywhere you can buy 7135 chips by themselves? The cheapest I could find (on a driver already) would be the KD 2.8a driver with 8 chips for $4.60 which is .57 cents each.
It seems like it would be somewhat difficult to desolder the chips because they are held down on both sides. Anyone have any experience desoldering a 7135?
First of all, go pay a little more and go with Shiningbeam or Illumination Supply. Get your stuff in two days instead of months.
That's just what I do-pull 7135's off a sacrificed driver. I put a glob of solder on all 3 pins... when it flows, the chip will come right off the board using tweezers while heating the solder.
Better be damn good with soldering to add it to your board. I don't know if you're gonna piggyback it on top of another chip, but you've gotta be a microsurgeon.
Rich
I get these and scavenge them. You may want to dismantle one of the 5. This would give you an option to get 4 amc 7135 to either add another to the existing boards to make it 1,4A or use elsewhere as you desire. Neat price.
Well I suppose you could do that if you wanted it really fast, but it comes out to 9.75 shipped which is more than twice the cost of the same driver at KD. I received my order in 15 days from KD so its way better than DX shipping thats for sure.
Im going to order 2 more 2.8a drivers from KD, they way I see it is that you can pull 4 of the chips off of one and still have a nice 1.4a regulated driver and come out with 4 7135 chips
If you only want a couple(or three) these are rather good value - http://www.dealextreme.com/p/2-7v-6v-3w-cree-circuit-board-for-flashlights-15mm-2-7mm-25518
It's just a shame that none of the HK retailers sells them loose, I'm sure DX could sell them at a $1 each and still sell them by the bucket load.
Found these on ebay: 40PCS AMC7135 350mA LED driver SOT-89
Just E-bay search AMC7135
Thank´s for link :)
nice find dmc, and welcome to BLF :-)
The same seller has a few auctions up in different quantities. I imagine their profit margin on these must be huge.
Illumination Supply has loose 7135's now BTW .50 each.
Does it include shipping?
I tried it cost me $13 for the shipping
I just ordered a few along with my last order of a driver and XM-L, as shipping is always ~$10 for me I think.
We should arrange a group buy for a reel or something :)
I'd be happy with 50-100 of these little gems if the price is right
Great thanks for the link. good deal for .58 cents with free shipping