Old 02-29-2012, 04:11 AM #33
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Default Re: Mitsubishi 300mW - Died at 1A?

Interesting. But mine wasn't even below freezing - it was probably at 40 F or so (refrigerated), and that is within normal operating conditions.


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Old 02-29-2012, 04:16 AM #34
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Default Re: Mitsubishi 300mW - Died at 1A?

Ah, we've seen this before. Condensation in the can.
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Old 02-29-2012, 04:24 AM #35
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Default Re: Mitsubishi 300mW - Died at 1A?

But see, it couldn't even have been that. First, the humidity here is REALLY low (Arizona :P) second, it wasn't even that cold. I just use it as a large heatsink, essentially (sucks away the heat to bring the ~40 degrees up to room temp.

But you may be right.
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Old 02-29-2012, 06:54 AM #36
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Default Re: Mitsubishi 300mW - Died at 1A?

I've seen on the forum 3 LOCs die shortly after they were cooled down by either the fridge, or freezer. But obviously there is no way to be sure.
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Old 02-29-2012, 12:50 PM #37
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Default Re: Mitsubishi 300mW - Died at 1A?

What would be a safe current for these diodes when they are in a heatsink and have a tec running?(but no air cooling)
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Old 02-29-2012, 02:17 PM #38
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Default Re: Mitsubishi 300mW - Died at 1A?

You always need active cooling with a TEC. That thing is producing far more heat than the diode itself.
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