Please advise, 635nm Pinout. Cannot find anywhere.

[IsaacT]

So I used the Iron4D to originally build my 635nm laser. But the laser has died and I am 100% positive only the driver is dead. I have a driver but I cannot find the pinout of these 300mW 635nm Mitsubishi Diodes ANYWHERE. I have searched and searched and searched.

If anyone has the info I would greatly appreciate it. I looked at the data sheet but it makes ZERO sense to me. All I see is a bunch of lines and stuff.

Thanks,
Isaac

 

[Cube777]

I think the pinout is the one in the attachment, although I am not sure. This is what I understand from the datasheet.

 

[Blord]

Cube777 is right. The diode is case neutral.

 

[grainde]

^^^^Yep its the same as the M140's....:beer:

 

[IsaacT]

So if I am using a round mohgasm, I simply attach a lead from the LD+ pad to the top pin, a lead from the LD- pad to the bottom pin, and leave the case alone?

Thanks,
Isaac

 

[Cube777]

Yes, or if the host is case negative you can take the case pin and solder it onto the IN-, likewise if it is case positive solder the case pin onto the IN+(This configuration simply makes a build more convenient)

 

[Blord]

Yes, that is correct. The beauty of a case neutral diode is that neither pin is connected to the case. You have more choices in drivers and hosts.

 

[IsaacT]

Okay, so I connected it all up and it is not lasing. I am guessing that when the previous driver died it may have sent a shock of some sort to the diode and blew it? Or is there another possibility?

Thanks....may have one more for my small but slowly growing diode graveyard. Although I haven't kept them... :/

 

[Cube777]

Are you sure the driver is working properly?

 

[IsaacT]

I just ordered the 756mA Mohgasm Round Driver from Mohgasm's store...I assumed it would work....is that a mistake?

 

[Blord]

I just ordered the 756mA Mohgasm Round Driver from Mohgasm's store...I assumed it would work....is that a mistake?

It should work. Did you use two li-ion cells for the driver ?

 

[IsaacT]

Yep, two 18350 batteries.

 

[Blord]

If the driver and the batteries are okay then it must be the diode fault.
Maybe the original driver was good in the first place and the diode has died.

 

[IsaacT]

That would suck. Well whether it was good or wasn't, it is dead now....I had to grind the Iron4D down to get it off the diode pins. No water what I tried it wouldn't come off with heat. Oh well. I ordered a 300mW Single Mode 650nm Diode from DTR for 21 dollars and a 386mA Mohgasm driver and I'll just change out the parts when they get here.