Used 1.8W 445nm Diodes
Used 1.8W M140 A-Type 445nm Diodes
This is a 5.6mm diode
Have a small amount of used diode pulls. These diodes are all tested and in good working order pulled from M Projectors with between 200-1500 hours.
Max current is 1.8A but to be nice on these used units 1.6A might give the best life.
See the testing at the bottom of the listing for more details or check out these threads.
These are the lower bin diodes out of the M140 projectors without the dot above the bar code which average 1.8W. Most sellers don't bother sorting these and selling them separately instead just sell all the diodes as 2W M140's leaving the buyer in a luck of the draw as to if they will receive an actual 2W+ M140 or a lower bin 1.8W diode. I don't want to call these A140 diodes as most the diodes sold as A140's elsewhere are from heavily used A140 projectors. The A140 projector has been discontinued for about 3 years now and there is no way to get a new one just used ones and these are out of new machines.
Check out these threads for information on these diodes
Free US shipping on order over $50 or Express For $16.
First Class International $9 "Not Tracked"(Offered On Orders Under $300 Orders Over will Default to Priority Tracked for $35)
Or
Express 5-7 Day Tracked W/Delivery Confirmation $42
Used 1.8W 445nm Diode
Bare Diodes
$17
Used 1.8W A-Type M140 445nm Laser Diode In 12mm Copper Module
W/Leads
(Choose Lens Option)
$27
Used 1.8W A-Type M140 445nm Laser Diode In 12mm Copper Module
W/1.1A Boost Driver
(2.5V-6V 2A+)
$57
Used 1.8W A-Type M140 445nm Laser Diode In 12mm Copper Module
W/1.6A SXD Driver
(6.5V-12V 2A+)
$57
Used 1.8W A-Type M140 445nm Laser Diode In 20mm Copper Module
W/Leads
(Choose Lens Option)
$33
Used 1.8W A-Type M140 445nm Laser
Diode In 20mm Copper Module
W/1.1A Nano Driver
(2.5-6V 2A+)
$63
Used 1.8W A-Type M140 445nm Laser
Diode In 20mm Copper Module
W/1.6A SXD Driver
(2.5-6V 2A+)
$63
If this is your first laser build here is a great place to start.
The, "I want to build a laser", Thread
Diodes are current hungry and as they heat up their internal resistance is lowered causing them to want to draw more current. Don't attempt to connect the diode directly to a fixed voltage source like a battery. You must use a proper LD driver like an X-drive limited to no more than 1.8A or you diode will suffer thermal runaway and die..
There are many proper laser drivers but be careful a lot of sellers here are offering LED drivers as a laser driver which can damage or cause shortened life to the diode. LED drivers are not laser drivers. LED's are tough as nails but laser diodes are much more sensitive and need extra features like soft start, overshoot protection and a very low noise output that are standard on laser drivers but not included on LED drivers. I have seen a a few tutorials for building a "cheap laser" with this LED driver but it is a bad idea as I see it causing a lot of diode deaths. If you do use a LED driver you do so at your own risk.
For more info on the reason for a constant current driver see this thread.
Laser Driver - It Can Be Done!
Here is the Pinout for the diode
1.8W A-Type M140 445nm Laser Diode
This is 700mA it was just flashing between 6/7 at the time the picture was taken and I did not notice it.
*Disclamer*
By purchasing these diodes you are agreeing to the following.
- You are over 18 years of age .
- You understand that these components that are mentioned above are dangerous when not properly assembled into a finished product.
- You will use these as components and properly incorporate them into a finished product.
- You will use these diodes/modules in a safe and responsible manner and for a legal purpose.
- You are legally responsible for the use of these components, improper use of these components or their end products.
- You are legally responsible for any injury to anybody resulting from the use of or assembly of these components or their finished products.
- You Accept this diode/module as a COMPONENT for integration in a system of YOUR OWN design and will be legally responsible from any and all LIABILITIES These Diodes and Modules are sold solely as a component for incorporation into the customer's end products. Therefore, this diode/module is exempt from compliance with the appropriate requirements of FDA 21CFR, section 1040.10 and 1040.11 for complete products.