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:The complementary NPN transistor to the BC303 is the BC301. Replacement and Equivalent for BC303 transistor You can replace the BC303 with the 2N5323 , BC161 or BC461 .