I recently bought a couple of 'STM' 1N5711 diodes via EBay and measured/compared them to the 'STM' 1N5711 I've bought via Mouser.The forward voltages differed quite a bit:Mouser 1N5177 -> 353mV @ 1mA EBay 1N5177 -> 242mV @ 1mAMouser 1N5177 -> 270m...