The Diotec 1SS5004WS is a 400 V, 0.22A fast switching small signal diode packaged in SOD-323F surface-mount technology. It is suitable for use in general purpose, power switching, and small signal applications. The reverse recovery time is 100 nanoseconds, and the junction capacitance of the device is 13 pF at 1 kHz. The forward voltage is 0.3 V ±0.1 V, and the thermal resistance is 100 °C/W junction-to-ambient. Product features include low forward voltage, low switching losses, fast switching speeds, and a high voltage rating.