That has not been my experience with them. It is likely they were damaged when you tried them backwards.Hello,
today I got my two 505 nm diodes. Both did not work until I realized, that they where case positiv. So I connected minus with plus and plus with minus. After that, I could see some bluish green. After this test, I pressed the diodes into a DTR module. What should I say, they are gone!!!
Is it possible, that the case positive diodes are more pressure sensitiv than the normal diodes?
You can drive that diode at 275 mA. It is very happy at that current and outputs more than 100 mW. I have set many to this current and they run forever.....well not really.Hello,
I use a little arbour press for this job. The press stamp has a 10 mm hole at the bottom.
I turned a 10mm brass rod, with a bore sufficient to take the diode pins without damage. That works fine for me. As I told, I did not kill the diode by pressing, I cut the wrong pin off!
Today, the 500 mA buck/boost driver from DTR arrived. They work fine with my new sharp 488 nm diode. Soldering is a tricky, because this driver is so little.
I run the driver at 280 mA input at 4,2V. That should be approx. 170 mA at the diode side. The laser output is 70 mW with a 3 element lense.
I am a little bit scrared to drive this diode harder.