bc303Download BC303 Datasheet. File Size: 122.29 Kbytes. Part #: BC303. Description: PNP SILICON AF MEDIUM POWER AMPLIFIERS & SWITCHES. Manufacturer: Micro Electronics.Part #: BC303. Download. File Size: 16Kbytes. Page: 1 Pages. Description: Bipolar PNP Device in a Hermetically sealed TO39. Manufacturer: Seme LAB.