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What kind of diode do I need

C

Cputech

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I recently bought a cheap Chinese laser you know one of those that said 10000mw 10w blue burning laser I'll add the posting in here. Well anyways push comes to drop it doesn't work anymore and I really did like it. So what is the diode that was in it so I can replace it anyone know


Ps all info I have on it
Output wavelength 450-660nm
Average power 10000mw
Security class:class IV
Circuit controller:5V(reverse voltage protection)
Spot shape:dot
Battery :2*16340
Spot size at 10m: <c18mm
Focus mode:adjustable
Working current: 1.6A
Working voltage:DC 3.7V
Start-up voltage:DC 2.5V
No preheat time
Working temperature-10deegrees C- +30 C
 





More than likely it was just a 1-2 watt 445 diode which if you know how to take it apart you can easily install another one unless the driver failed as well, not sure but DTR has a pretty good selection of diodes. I would def try yourself, it would probably be worth it to not throw the host away, a lot of these guys know more than I do so they could further help. :D
 
Thank you I think your on the right track I still do have the driver and the only problem with the diode is that the little wires are broken off
 
Cputech said:
Output wavelength 450-660nm
Click to expand...

Wtf?:wtf:

I know chinese lasers are always off-spec, but that's the first time I've seen that type of wavelength description. Good thing you mentioned it was blue!

Anyway, it's not worth replacing the diode as the price of one of DTR's blues will probably run you more than what you paid for the laser itself, so you could just get another laser. Are you sure it's the diode that's busted? Stick around in the forum if you wanna get into lasers and find some quality sources and even build your own! :D
 
Thanks but there are some Chinese sites that have diodes for 20 to 30 or less I just got to know what kind. The closes I found is a Chinese 9mm 405nm 10000mw 10w diode
 
Cputech said:
I recently bought a cheap Chinese laser you know one of those that said 10000mw 10w blue burning laser I'll add the posting in here. Well anyways push comes to drop it doesn't work anymore and I really did like it. So what is the diode that was in it so I can replace it anyone know


Ps all info I have on it
Output wavelength 450-660nm
Average power 10000mw
Security class:class IV
Circuit controller:5V(reverse voltage protection)
Spot shape:dot
Battery :2*16340
Spot size at 10m: <c18mm
Focus mode:adjustable
Working current: 1.6A
Working voltage:DC 3.7V
Start-up voltage:DC 2.5V
No preheat time
Working temperature-10deegrees C- +30 C
Click to expand...

If that's truly a 1.6amp driver you could put a m140 in there, soldering diodes is no joke, ya have to be fast so as not to overheat the diode. I would make sure the driver is good first

It should be 1w+
 
Last edited:
ElectricPlasma said:
Wtf?:wtf:

I know chinese lasers are always off-spec, but that's the first time I've seen that type of wavelength description. Good thing you mentioned it was blue!

Anyway, it's not worth replacing the diode as the price of one of DTR's blues will probably run you more than what you paid for the laser itself, so you could just get another laser. Are you sure it's the diode that's busted? Stick around in the forum if you wanna get into lasers and find some quality sources and even build your own! :D
Click to expand...

Actually you're right those things are pretty cheap. Besides havnt you heard of blue red lasers!? 450-660? Lol! Jk. Yeah building your own can be a lot of fun plus last longer. Lmao still haven't even built my own yep :P I'll get to it eventually.
 
Cputech said:
Thanks but there are some Chinese sites that have diodes for 20 to 30 or less I just got to know what kind. The closes I found is a Chinese 9mm 405nm 10000mw 10w diode
Click to expand...

He's right, stick around here man, you'll love this place and learn so much. This is like my Facebook now lol
 
I tell you what if anyone knows what diode to use that can burn as good as the other one that would also be good this laser has paid for itself 2 fold now and was working on 18 fold when it broke so any ideas are greatly appreciated.
 
Cputech said:
Thanks but there are some Chinese sites that have diodes for 20 to 30 or less I just got to know what kind. The closes I found is a Chinese 9mm 405nm 10000mw 10w diode
Click to expand...

Lol, a 10w 405nm diode. This is why you don't buy from china. Like VV said, you could get an m140 but it might run you more than the laser itself. A 1W 445nm diode won't be as cheap as you think, it's usually over 40-50 dollars depending on what you're looking at


VirtueViolater said:
If that's truly a 1.6amp driver you could put a m140 in there, soldering diodes is no joke, ya have to be fast so as not to overheat the diode. I would make sure the driver is good first
Click to expand...

I've surprisingly never soldered a diode, only bought em in modules, can they really get damaged from overheat from soldering? :thinking: Doesn't sound right to me
 
Cputech said:
I tell you what if anyone knows what diode to use that can burn as good as the other one that would also be good this laser has paid for itself 2 fold now and was working on 18 fold when it broke so any ideas are greatly appreciated.
Click to expand...

You need to know what size that diode is. It probably a 5.6 mm 445, you want one that runs good at 2.6a. The m140 meets the requirements if the old diode is 5.6. If you take the lens out and take a pic of it may be able to tell. I doubt if it's 9mm
 
I can't send a photo I don't know how to size it down to 800 600 on a iPhone 6
 
ElectricPlasma said:
Lol, a 10w 405nm diode. This is why you don't buy from china. Like VV said, you could get an m140 but it might run you more than the laser itself. A 1W 445nm diode won't be as cheap as you think, it's usually over 40-50 dollars depending on what you're looking at




I've surprisingly never soldered a diode, only bought em in modules, can they really get damaged from overheat from soldering? :thinking: Doesn't sound right to me
Click to expand...

Wehooo Jesus! Just imagine a 10w 405nm lmao! Talk about astronomically insane!
 
ElectricPlasma said:
Lol, a 10w 405nm diode. This is why you don't buy from china. Like VV said, you could get an m140 but it might run you more than the laser itself. A 1W 445nm diode won't be as cheap as you think, it's usually over 40-50 dollars depending on what you're looking at




I've surprisingly never soldered a diode, only bought em in modules, can they really get damaged from overheat from soldering? :thinking: Doesn't sound right to me
Click to expand...

You can certianally shorten thier life, m140's $37 at dtr
 
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