Sudoo Solar PV Blocking Diode Schottky Barrier Rectifier Bypass MC4 Compatible Anti Reverse 1000V 20A (1)

As another reviewer said, inside is not a Schottky diode, but a 20A mic rectifier. See my first photo, not quite well taken, but maybe it can be seen. The mic rectifier has a much higher forward voltage drop, 4th photo 0.750V. My 20A Schottky diode that I bought separately from amazon voltage drop of only 0.220V (3rd photo).Thanks to the original reviewer I knew about this, but this is the only product out there that can accomodate a Schottky diode. So, what I did, I bought this full well knowing that inside it is not a Schottky diode and replaced the mic rectifier with my own Schottky diode, second photo. All in all you will be paying for the shell only, but I was happy with that hence the 3 stars.I plan on using this for 2 solar panels in a parallel connection so a Schottky diode is a must due to a differential shading on one of the panels. My panel produces ~8Amps * 0.75V from the mic rectifier will be 6W of heat to be dissipated, quite a bit, so the MC4 will be hot. As compared to a proper 20A Schottky diode it is 0.22V * 8A= only 1.8W, so much less heat and the MC4 connecter will not be heated that much.If you just want an MC4 shell for a Schottky diode (bought separately) this will do very well indeed.

I do not think that these are Schottky Diodes as described. Mine came with 20A10 MIC Rectifier? Diodes inside NOT 20SQ045 PEC Schottky Diodes. They have a forward Volt drop of 0.47volts when tested with a multimeter diode test (under minimal load).