Hi All, I am trying to wire up a fairly sensitive display that calls out for 2 RB480K diodes to be connected in series as a reference (GND C A C A). I was given CES388 diodes as a substitution but since I have installed them the display has not worked. To me, I'm a mechanical engineer, the properties seem fairly similar but I could be missing something as I am not used to doing electrical work. Any help is appreciated. if it helps the display is a US micro products P21301 in SPI mode. Thanks!