Old 07-30-2010, 09:59 AM #17
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Default Re: 445nm bad diode?

I've used pure acetone without any ill effects. In fact, i immersed the diode in there for several hours because the crud was quite stubborn (probably got melted on the window)


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Old 07-30-2010, 10:15 AM #18
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Default Re: 445nm bad diode?

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I've used pure acetone without any ill effects. In fact, i immersed the diode in there for several hours because the crud was quite stubborn (probably got melted on the window)
Are you crazy?!! the pure acetone may corrode the glue to the window and enter the diode and could dissolve layer anti-reflection
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Old 07-30-2010, 05:17 PM #19
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Default Re: 445nm bad diode?

Acetone shouldn't dissolve any optical coatings.

I would worry about any polymer parts though. What are the little black rings made out of that isolate the case pins from the case itself? I don't believe I've ever actually examined them to see exactly what they're made of.
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Old 07-30-2010, 05:42 PM #20
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Default Re: 445nm bad diode?

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Originally Posted by pullbangdead View Post
What are the little black rings made out of that isolate the case pins from the case itself? I don't believe I've ever actually examined them to see exactly what they're made of.
Usually, fused glass. ..... 99% of these "pins passthrough" are made in high temperature, high stability glass, for the high insulation, low capacitance and high temperature resistance (other the mechanical resistance)
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Old 07-30-2010, 05:50 PM #21
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Default Re: 445nm bad diode?

^ cool, never knew that
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