bc303BC303-4 Datasheet and Replacement. Type Desnator: 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: