The 200 V reverse voltage rating places it in the high-voltage Schottky tier — most Schottky diodes cap at 100 V or 150 V, so this part is aimed at circuits where the reverse voltage exceeds the typical 40-100 V range, such as 48 V telecom rails, 72 V battery systems, or secondary-side rectification in flyback converters with a 200 V peak stress. The forward voltage is 800 mV typical at 2 A forward current — that is the conduction loss floor at rated load. For a 200 V Schottky, 800 mV is within the expected range; a lower Vf would require a thinner epitaxial layer that would not hold off 200 V.
Reverse leakage and thermal budget at 200 V
Reverse leakage is specified at 5 µA at the full 200 V reverse voltage. That leakage doubles roughly every 10°C rise in junction temperature — at 125°C junction the leakage may reach 50-100 µA, which adds to the thermal load. In a 2 A design running at 85°C ambient, the leakage contribution to self-heating is negligible, but in a high-temperature application near 150°C junction the leakage current becomes a factor in the thermal budget. No reverse-recovery charge to manage, so the switching losses are dominated by the junction capacitance rather than stored charge. That makes the part suitable for switching frequencies up to several hundred kHz in continuous-conduction-mode converters.
The base product number is STPS2200, and the 'U' suffix indicates the SMB package variant.