Original poster: "K. C. Herrick" <kchdlh-at-juno-dot-com> I note in IRF's SPICE models for the IRFP460A MOSFET and the IRG4PC50W IGBT that IRF includes the disclaimer, "The voltage-dependent capacitances are not included." Does anyone have .model characterizations for those or similar items that >do< include those capacitances? Ken Herrick