bc303Type Desnator: BC303 Material of Transistor: Si Polarity: PNP Maximum Collector Power Dissipation (Pc): 0.85 W Maximum CollectorPart #: BC303. Download. File Size: 16Kbytes. Page: 1 Pages. Description: Bipolar PNP Device in a Hermetically sealed TO39. Manufacturer: Seme LAB.