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ArcticMyst Security by Avery

Mits 500 mixup

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Mar 21, 2016
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I have mixed up mits 500 and lpc840. One has the Mitsubishi mark on the bottom, it's the taller one of the two. Anyone know the difference?
 





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Here's DTR's mitsu500 pic, so I'm thinking the 840 has a longer wave guide?

From the tip of the pins to the end of the waveguide looks longer on the 840.

1h6f.jpg



Here's the 840

s-l1600.jpg

s-l1600.jpg
 
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Hi,
If your not sure test them on your PSU that will tell you right away when you see the 840 starting to roll back at a lower current setting compared to the Mitsu 500

Rich:)
 
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They don't have the same pinout as the LPC-840 cathode is the case and the Mits 500 mW cathode is to the left of the anode pin with the case pin in the down position.
 
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Hi,
Yes know that the case pin is your ground on the 840 i did a few just for fun but won't build to many with them. i like testing all my diodes before i build with them to see were they stand under current.. Good point Paul lets see how VV makes out with his build. Thanks for the moment priceless.. LOL !!
Rich:)
 
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They don't have the same pinout as the LPC-840 cathode is the case and the Mits 500 mW cathode is to the left of the anode pin with the case pin in the down position.

Ok, the case pin is my - on my lpc840, correct?
Also, what's a safe, upper limit on my current?

Also Rich,
Found another nice flashlight for the 35mm cu modules.
I'll post it on that thread later
 
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Can't tell you that as I have never pushed one incrementally until it failed. I did lose a few trying to use a very cheap driver that was recommended here a couple years ago. That was back when these were about $15.00 each.
 
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Ok,
Guess I'll put it on the psu, kinda worried after testing my lpc826 to death lol and all the threads about how fragile the lpc840 is. Thinking I should be able to get 500 ma's out anyway. Love my mits 500

Edit:
At 550, slowed getting brighter, that's my number.
 
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So, you got your LPC-840 up to 550 mA? That is good to know if I am reading this correctly.
 
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So, you got your LPC-840 up to 550 mA? That is good to know if I am reading this correctly.

Yeah, on my psu and for 1 min in my host. I killed it. Got it in and fired up, then laid it down by my 500, turned them on for a pic and it died before I got the pic. The spec sheet days 340 I think , shoulda stayed at 400 or less
 
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Here's a pic of its last breath. This is a flashlight I found that works with the 35mm cu module

I'm actually using a cu washer and a 12mm module here
 

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Hi, VV,
350 to 400 should be good for the diode ,I myself burned out a few trying to reach higher no worth it. The 826 runs about the same but a little lower, but the same pin out..I'm a little late but oh well.

Rich:)
 

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I'm sorry for your loss, but that makes sense as I never got anywhere near 550 mA and would have tried at least 500 to start. My thoughts are now to start around 400 mA and see where it goes from there.
 
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If I ever get another one, I won't go over 400 ma. I'm gonna order 10 lpc826's, I like them alot better. They seem to be just as bright

The last lpc826 I had ran at 550 ma's no problem
 
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