FGH60N60SMD & FGH40N60SMD Field Stop IGBTs onsemi FGH60N60SMD and FGH40N60SMD 600V Field Stop IGBTs offer the most ideal performance for Solar Inverters, UPS, SMPS, IH, and PFC applications in which low conduction and switching losses are essential. onsemi FGH60N60SMD and FGH40N60SMD 600V Field Stop IGBTs have 60A and 40A collector current ratings, respectively. Both IGBT Series offer a maximum junction temperature of 175ºC, a positive temperature co-efficient for an easy parallel operating, high current capability, low saturation voltage, high input impedance, fast switching ability, and tight parameter distribution.