High voltage diode assemblies are built by adding diodes in series to yield a higher peak inverse voltage. For example, if each diode is rated for 1200 peak inverse voltage (PIV), then six diodes in series would have a total peak inverse voltage of 7200 PIV. These above high voltage diode assemblies were used to build a three-phase rectifier circuit for the high voltage SCR-controlled power supplies (P/N 18278PS, P/N 18498PS, and P/N 18574PS). The number of diodes in series determines the desired peak inverse voltage. We can build a diode assembly with a higher blocking voltage per customer requirements. We keep all materials (i.e. diodes, SCRs, heat sinks, etc.) in stock for immediate assembly.