Pioneer DVR-111DBK diodes...

[Quisp]

Hi there-

While taking out the trash yesterday, I found a junked Pioneer DVR-111DBK drive laying on the ground. Having never "harvested" before, I thought tearing this thing apart and finding the diodes would be fun. It kinda was.

Anyway, the pictures below show the two diodes I found in this drive. I'm believe one is probably a red LCC diode and the other an IR diode, but I don't really know for sure or which is which. I searched around for info on this drive, but didn't really find much.

Based on my pictures, can anyone identify these two diodes? Once I know for sure what they are, I can probably figure out how best to use them.

Mark

 

[bloompyle]

DAMN!!! Those are some insane macros!!! I can't help as far as the diode, but I wanted to atleast complement your pics. Those are ridiculous!

 

[Quisp]

My Canon G10 thanks you.

 

[BShanahan14rulz]

So these diodes have something inscribed on the outside of the can (the long one, at least). Ever get around to looking it up on the internet?

I will say that the trapezoidal die shape on the long one looks like someone's signature here on LPF, so it is probably a well-known diode... Probably that LCC you were thinking.

 

[Jimmymcjimthejim]

I'm believe one is probably a red LCC diode and the other an IR diode

If you didn't happen to know what LCC stands for, it's Long Closed Can diode. I think it's pretty obvious which is the LCC in these pictures
Another way to tell is by the AR coating on the window. On IR diodes, the coating will be a very pale, light blue. On red diodes, the coating is a very deep blue.

 

[bloompyle]

On my red/IR diodes, there is no glass lens. None of them have one, not even the IR from a GGW sled had one.

 

[Quisp]

So these diodes have something inscribed on the outside of the can (the long one, at least). Ever get around to looking it up on the internet?

I will say that the trapezoidal die shape on the long one looks like someone's signature here on LPF, so it is probably a well-known diode... Probably that LCC you were thinking.

Wow...I didn't see an inscription before on the longer can/short lead diode... Good call...Thanks.
It reads, "AA1 646G". whatever that means...
The shorter-can/long lead diode has no inscription at all.

If you didn't happen to know what LCC stands for, it's Long Closed Can diode. I think it's pretty obvious which is the LCC in these pictures
Another way to tell is by the AR coating on the window. On IR diodes, the coating will be a very pale, light blue. On red diodes, the coating is a very deep blue.

I knew what LCC stood for, but I wasn't sure if the IR diode had a longer or shorter can in comparison.

Only my longer-can diode has a window (the bluish refection you see in one of my pics). The shorter-can diode is windowless.

 

[Quisp]

op:

 

[Jimmymcjimthejim]

op:

The LCC is the longer diode, the IR is the shorter diode.:thinking:

 

[pHeneX]

DVR-111DBK

Max. 16x writing speed for DVD-R/+R*

Sounds like LCC to me, dunno which one of the diodes it is though.
But if i had to guess, i would say its the longer one. Just try it out with a low current like 60-80mA.

 

[Quisp]

Mystery solved...Mostly...

I hooked each diode up to a rckstr @120mA with a 9V battery.

Although both diodes glowed red, the longer canned diode was far brighter than the shorter canned diode.

Interestingly, this web site ( Types of lasers - Laser Wiki ) shows a closed can diode next to a penny that looks exactly like my shorter canned "IR diode."

Unless convinced otherwise, I'll go with the LCC assumption for my longer canned diode.

Thanks for the input y'all.