The 1N5818W is a Schottky Barrier Diode (SBD) manufactured by Jingdao that is packaged in a SOD-123FL package. This part is RoHS compliant, making it free of hazardous materials. This diode has a low Vf of 0.45V to 0.50V, and a maximum forward current of 1A. It is designed for use as a free-wheel, solenoid, and pull-up diode. This part has a maximum reverse voltage of 30V, and a maximum surge current of 4A. The 1N5818W's small package ensures a low-profile installation, which is suitable for a variety of applications.