120 V, 20 A Schottky in TO-220 — what the ratings mean
The STPS20SM120ST is a 120 V, 20 A Schottky rectifier in a TO-220-3 through-hole package, part of ST’s ECOPACK®2 series.
20 A average, 890 mV forward drop — the thermal budget
At 20 A forward current the maximum forward voltage is 890 mV. The junction temperature ceiling is 150 °C. Reverse leakage at 120 V is 210 µA.
