The 1SS193 is a SOT-23-3 RoHS (Restriction of Hazardous Substances) switching diode offered by Youtai. It is designed for use in high-speed switching applications, such as switching regulators, converters, and rectifiers. It features a high peak surge capability, good reverse leakage current, and low reverse voltage. It has a maximum repetitive peak reverse voltage of 16 volts and a maximum DC blocking voltage of 24 volts. It can also withstand a maximum reverse current of 0.2 A at 25°C and a maximum forward current of 250 mA at 25°C. It also has a low forward voltage drop of 0.7 V at 250 mA. The 1SS193 is RoHS compliant, ensuring it does not contain hazardous materials, such as lead.