ST STP21NM50N/STF21NM50N/STW21NM50N/STB21NM50N/STB21NM50N-1 handbook
STB21NM50N is a N-channel 500V-0.15Ω-18A MOSFET from ST company, using the second generation MDmesh technology, with 100% avalanche tested, low input capacitance and gate charge, low gate input resistance, suitable for high efficiency converters.
