173 in stock, ready to ship. One at a time or however you like. 
Can anybody guess what 3 XHP70’s do on a A17DD-S08 driver with a high end Toshiba MOSFET?
SupFire M6? Almost dead cells even? (8 Efest IMR18350 Purple)
:bigsmile:
Just a stab in the dark here. 9522 OTF?
What high end Toshiba MOSFET?
I don’t remember any talk about a toshiba MOSFET only NXP or Vishay ones.
And i guess over 10000 
G'Day Dale, 
I am guessing about 15,000 to 18,000 Lumens OTF (with fully charged 8 Efest IMR18350 Purple)....
Btw, I want one of those..... ;)
Best Regards,
George
When I first tested it the cells were at 3.95V, almost dead, after the lightbox run. I didn’t run it just tested it. The first reading I got was 12,523 lumens.
So of course I charged the little cells!
13,903.5 lumens out the front, even low does 1408.
I lined up the emitters such that the line between dies pointed towards the middle. This put them diagonal to each other. And the donut hole is there at low, but decreases as the brightness goes up. Turbo is a stupid amount of light!
These are the 6500K variant, the first ones out.
This Toshiba is a new release, it has a plate on top like the one on bottom that solders to the driver. This is supposed to help with heat. It’s rated at 150A, 30V.
Can’t help but wonder what a good set of top end 18650’s would do….
Full out belly roll laughter! Damg, my face hurts! :bigsmile:
:bigsmile: 
0:)
What is the exact name for the toshiba? so i can check if it is available on stores thats available to me like farnell.
But it still is a LFPAK56 sized FET? have there been any discussions in any thread’s on it here on BLF?
I saw it when in announcements when I was looking for something else, looked good, bought 5 of em. $3 each.
I have no idea if this performs any better than the SIR800 or PSMNO9R or anything else. I’ll be using the SIR800 mostly now but thought I’d try this out.
That FET might actually do better on a driver like the LD-1.
Thanks i found it, i guess i buy some of the various like the SIR800 & PSMNO9R because farnell don’t got it yet.
I hope one our spec gurus like wight, comfy or Rufusbduck will weigh in on if TPWR8503NLL1QCT-ND is a good option, i have a really hard time wrapping my head around the spec and the math comparisons on MOSFETs……
EDIT and here he comes…… thanks Rufusbduck
Would you say the SIR800 & PSMNO9R should still be the better options?
I wants it! I wants the precious! 
I put that down to your retinas catching fire
Very impressive looking FET btw, the RdsON graph is solidly at 1mOhm for our usage range. Low threshold voltage as well, looks really good to me.
Is the “thermal pad” on top electrically connected to any of the other pins? I can’t find any info on that in the datasheet.
Cheers
In a much higher application than ours it’s to be set up in contact with the housing or heat sink for maximum cooling. I know when we were working on the Knucklehead, there was a lot of conjecture about how to cool components so this looked like a great idea to me. I intended to make a small copper heat sink to solder to it, but realized even pushing 3 XHP70’s it’s way down on the bottom end of it’s intended use. Maybe 30A? In a component designed to do 150A? Yeah, not really an issue.
So the tab is connected to the gate? That’s really strange, I would have guessed/hoped it was connected to the source/gnd pin.
I was looking for a package like this a while ago and couldn’t find anything.
That would have been very handy for improved heatsinking when used in linear drivers (where heat dissipated would potentially be much higher than in a DD setup like this)
Edit: Just had a quick look and that DSOP Advance thermal pad does seem to be connected to the source pin. That’s awesome. I’m going to have to get a few of these things!
I said gate, meant that it’s not to be used as an electrical connection.
I just thought the tech was neat. 
I mean, I read the datasheet and it looked like it would be good for our application and I had this triple XHP70 in mind and was thinking, if there was ever a place… so I tried em.
I don’t know electronics. I don’t know why with the same firmware that yields a sub lumen moon mode in my triple XM-L2 this one makes 1400 lumens. That came as a surprise! The lowest position on tap is 1400, not much of a low huh? lol
Ah gotcha. Yes I see that they don’t suggest using it to connect GND directly, but as long as the only heatsink path isn’t soleyl through the drain tab I still see this being very useful in flashlight applications.
Having to keep the drain tab electrically isolated from the body of the flashlight limits efficient heat sinking options quite a bit.
Is that with the same mosfet on both or compared with the standard ones?
Sounds like there’s something interesting going on anyway. Is it possible the low you’re seeing is actually a medium mode and the lowest is completely off? That seems more likely to me if it was a mode compression issue related to the dynamic mosfet properties.
You’d have to hook it up to a scope to see what’s really going on with the PWM signal.
Bloody mosfets are tricky buggers to understand!