Listing is for a single 3.8mm Osram PL520 50mW 520nm laser diode in a standard 12mm copper module with leads attached. The copper module upgrade provides a huge  improvement  in thermal conductivity over the standard brass module for moving the heat away from the diode to your heatsink which gives a much more stable output from the diode. 

Save yourself the headache of extracting, pressing and soldering on your diode. Just add host, heatsink and driver. The current must be limited to no more than 300mA to the diode for best life expectancy. Don't attempt to connect directly to a battery. I do offer a boost driver that is capable of driving this diode off a single Li-Ion see my other offerings below. All modules are tested and are in working condition prior to shipping.







See this thread for testing data on LPF.

Osram PL520 50mW 520nm Laser Diode


Datasheet




Here are some various beam shot pictures with these diodes.





Here is the testing from my thread on LPF.


I was really surprised how bright they really are and am very pleased with these diodes. They are the beginning of a new era here for sure. I want to start off by saying these run extremely stable from what I have seen so far and they appear to be pretty damn tough as I have doubled the datasheet recommended current and have not seen any degradation on the diode. They can double the datasheet output or more but it is yet to be determined if it is good to run them that hard yet.


Anyway here we go. They seem to have a lasing threshold of 70mA and there you will see about 15mW. This test was done with a G-2 lens. 






Next on to 100mA and it gets about 28mW.







Next to 150mA and it jumped to 55mW. 27mW gain for 50mA.







Next to 200mA max recommended current via the datasheet and we are seeing just under 80mW. 30mW gain for 50mA. This really may be the sweet spot.






Now to 250mA and a jump to 96mW. Only a 16mW gain for 50mA.






Next to 300mA and 107mW. So we are falling off the efficiency curve at this point. 11mW gain for 50mA.






Next to 350mA and 116mW. 9mW gain for 50mA.






And just for good measure on to 400mA and 118mW. 2mW gain for 50mA.








So there we have it. With an acrylic lens you are probably looking at a 15-20mW decrease so looks pretty solid 80mW with a G-2 and probably 50mW with an Acrylic. There are still wavelength and controlled temperature experiments that can be done but I think that about sums up the output capabilities. 




If this is your first laser build here is a great place to start.


 

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 "constant current" power source like a current limiting driver or variable current power supply with the current limited to no more than 300mA or you diode will suffer thermal runaway and die. 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


If you are looking for a host here are some of the more popular host/heatsink kits that will work with these diodes and if you want something that is not listed in those links that I show in my tutorials below shoot me a message and I can point you in the right direction for them.;)




Here is one of my favorite hosts. The Sirius 1-C





 

Here is a list of tutorials I have made and experiments that can help give you ideas for your next project.


 










Shipping is Free in the US
International
First Class mail "Not Tracked" Delivery estimate is 10-30 business days most falling around 15.
or
Express 5-7 day Tracked with Delivery Confirmation.(Recommended) 




*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.