950V CoolMOS™ PFD7 SJ MOSFETs Infineon Technologies 950V CoolMOS™ PFD7 SJ MOSFETs offer super junction (SJ) technologies. The SJ technology is ideal for lighting and industrial SMPS applications by incorporating best-in-class performance with state-of-the-art ease of use. The PFDJ provides an integrated ultra-fast body diode allowing usage in resonant topologies with the lowest reverse recovery charge (Qrr).