30 V, 300 mA Schottky in a 0201 body
The STMicroelectronics BAT30F4 is a Schottky rectifier rated for 30 V reverse voltage and 300 mA average forward current, housed in the 0201 (0603 metric) surface-mount package.
Forward drop and leakage at temperature
At 10 mA the maximum Vf is 310 mV, which keeps conduction losses low in signal-level or low-current paths. Reverse leakage is 50 µA at 30 V — typical for a small-signal Schottky in this voltage class. The operating junction temperature range is -30°C to 85°C, so the part is suited for consumer, portable, and indoor industrial environments where the ambient stays within that window.