Diotec Semiconductor Single Bipolar Transistors 2N3904BK

The 2N3904BK is a general-purpose NPN silicon transistor in a TO-92 package, designed for switching and amplification applications. It has a collector-emitter voltage rating of 40 V, a collector current of 200 mA, and a power dissipation of 625 mW. The junction and storage temperature range is -55°C to +150°C. The device is compliant with RoHS, REACH, and AEC-Q101 standards. The part is supplied in bulk with a 1.27 mm raster pitch, as indicated by the "BK" suffix. The case material meets UL 94 V-0 flammability rating. The transistor has a typical DC current gain of 100 to 300 at 10 mA collector current, with a transition frequency of 300 MHz. Thermal resistance from junction to ambient is 200 K/W when mounted on a PCB with 3 mm² copper pads at each terminal.