ms303Part #: MS303. Download. File Size: 136Kbytes. Page: 2 Pages. Description: 3.0A SCHOTTKY BARRIER DIODE. Manufacturer: Zibo Seno Electronic EngineeringPart #: MS303. Download. File Size: 136Kbytes. Page: 2 Pages. Description: 3.0A SCHOTTKY BARRIER DIODE. Manufacturer: Zibo Seno Electronic Engineering