bc303BC303: 133Kb 3P: PNP EXPITAXIAL PLANAR SILICON TRANSISTORS List of Unclassifed Man... BC303: 45Kb 2P: BABC Series: 1.5 - 6.0 Watts Single and Dual Outputs Seme LAB:Part #: BC303. Download. File Size: 122Kbytes. Page: 2 Pages. Description: PNP SILICON AF MEDIUM POWER AMPLIFIERS & SWITCHES. Manufacturer: Micro Electronics.