The STPS160AFN is a 60 V, 1 A Schottky rectifier from STMicroelectronics, built for fast switching in low-voltage power conversion and polarity protection. Its forward voltage drops to 670 mV at the full 1 A rated current, which keeps conduction losses low in a 1 A rail. The SMA Flat Leads package (DO-221AC) sits low on the board — useful for slim-profile power supplies, LED lighting drivers, and DC-DC converter output stages where height matters.
STMicroelectronics lists the STPS160AFN as obsolete.
Key ratings at a glance
Reverse voltage stands at 60 V, which covers 12 V, 24 V, and even 48 V bus rails with margin. Average rectified current is 1 A — sized for low-current rectification, OR-ing, and freewheeling duties. Reverse leakage is 4 µA at the 60 V rating, low enough to avoid wasting standby power in battery-powered gear. The fast-recovery spec (under 500 ns, above 200 mA) confirms it switches cleanly at moderate frequencies, though Schottky diodes inherently recover faster than pn-junction types. The SMA Flat Leads package is surface-mount and hand-solderable with a fine-tip iron — no hot-air station required if you have steady hands.