The power supply schematic for my Parasound, HCA855a shows 12 of the film caps labeled as "104/250V MPPT" and "104/250V MPPC". I've decoded the "104" as .1uf, but I'm not sure about the MPPC and MPPT designations. Is MPPC: Metallized Polypropylene Film Capacitor and I'm totally in the dark about MPPT: Maximum Power Point Tracking? Thanks