bc303Part #: BC303. Download. File Size: 16Kbytes. Page: 1 Pages. Description: Bipolar PNP Device in a Hermetically sealed TO39. Manufacturer: Seme LAB.CDIL BC303 | Transistor: PNP; bipolar; 60V; 0.5A; 0.85W; TO39 - This product is available in Transfer Multisort Elektronik. Check out our wide range of products.