BAT54SW is an SMD small signal Schottky diode manufactured by Diotec Semiconductors, featuring a series connection configuration in a compact SOT-323 package. It is designed for high-speed switching applications with a maximum average forward current of 200 mA, forward voltage drop below 240 mV at 0.1 mA, and a reverse recovery time of less than 5 ns. The device operates over a junction temperature range of -55°C to +150°C with a repetitive peak reverse voltage rating of 30 V and peak forward surge current capability of 600 mA. BAT54SW is ideal for signal processing, polarity protection, and high-speed switching circuits in commercial and industrial applications, offering very low junction capacitance and leakage current for reliable performance.