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Old 03-31-2012, 12:49 PM #1
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Default Casio m140 diode save power

When placed in a heatsink only with no cooling, how long could i run it without riscing damage?
Im going to put one in my projector with a g2 lens, and want a total power of 1.5W.
Whats the runtime and how much current would i need?
Can i run it longer then 20 minutes on full power at least?


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Old 03-31-2012, 01:30 PM #2
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Default Re: Casio m140 diode save power

Not sure! m140s are way more efficient than the a140s like whats in my Arctic, and it doesn't start to get that warm on High till its been on for 30 min.

Although I am sure its nowhere near 1.5W LOL
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Old 03-31-2012, 01:35 PM #3
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Default Re: Casio m140 diode save power

It is NOT just that the M-series (and H-series) diodes run "more efficiently"

They are a different diode than the A-series diodes

They are a more powerful diode

Since it is a more powerful diode, it takes less current to reach the same output as the A-series

A-140 vs. M-140 vs. H1600

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Old 03-31-2012, 01:50 PM #4
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Default Re: Casio m140 diode save power

Already saw that link. I know because of that, that the m140 is the best.
But not yet how long i could run it at 1.5W, before im riscing damage and power instabiliy.
Whats a safe power for this diode, wich makes it run for at least 20mins on full power, without cooling but only a pretty large heatsink? Droplr*•*IMG_4763.JPG
And the heatsink attached to a 1cm thick aluminium plate...?
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Old 03-31-2012, 01:53 PM #5
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Default Re: Casio m140 diode save power

Quote:
Originally Posted by borgqueenx View Post
Already saw that link. I know because of that, that the m140 is the best.
But not yet how long i could run it at 1.5W, before im riscing damage and power instabiliy.
Whats a safe power for this diode, wich makes it run for at least 20mins on full power, without cooling but only a pretty large heatsink? Droplr*•*IMG_4763.JPG
And the heatsink attached to a 1cm thick aluminium plate...?
No one has done that experiment

Please report your results when you are done

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Old 03-31-2012, 02:15 PM #6
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Default Re: Casio m140 diode save power

Quote:
Originally Posted by daguin View Post
No one has done that experiment

Please report your results when you are done

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aw thats to bad. how should i proceed if i want to test?
Use a probe for detecting temperature and see how high it gets?
How high is not longer safe and normal for the diode?

thanks anyways^^
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Old 03-31-2012, 02:18 PM #7
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Default Re: Casio m140 diode save power

Quote:
Originally Posted by borgqueenx View Post
aw thats to bad. how should i proceed if i want to test?
Use a probe for detecting temperature and see how high it gets?
How high is not longer safe and normal for the diode?

thanks anyways^^
As the 445nm diode heats up, it starts to loose output power
Measure at what temperature the output becomes unacceptable

Peace,
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Old 03-31-2012, 07:42 PM #8
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Default Re: Casio m140 diode save power

Quote:
Originally Posted by daguin View Post
As the 445nm diode heats up, it starts to loose output power
Measure at what temperature the output becomes unacceptable

Peace,
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thanks il try. i do have a multimeter with temperature probe but il see if it works^^
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Old 04-12-2012, 08:16 PM #9
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Default Re: Casio m140 diode save power

1500mW does fine in a large heatsink. with aluminium foil around the module to connect to the heatsink. Tested 40 minutes straight, and doesnt drop below 1500mW. Avarage: 1515mW.
cant measure the current, all my 3 DMM's are shit.
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