The STPS30M80CT from STMicroelectronics is a dual common-cathode Schottky rectifier in a through-hole TO-220-3 package. The forward drop is specified at 745 mV at 15 A, which directly sets the conduction loss in high-current OR-ing, flyback, or boost stages.
Fast recovery and leakage — switching and standby trade-offs
Listed as a fast-recovery Schottky (≤ 500 ns), this diode handles switching frequencies typical of 50–100 kHz PFC and DC-DC converters without excessive reverse-recovery loss. Reverse leakage is 40 µA at 80 V, a figure to factor into standby-power budgets in always-on supplies.