Quantity per case: 1. Semiconductor material: silicon. FT: 400 MHz. Function: general purpose. Max hFE gain: 120. Minimum hFE gain: 25. Collector current: 250mA. Marking on the case: B2. Number of terminals: 3. Pd (Power Dissipation, Max): 0.225mW. RoHS: yes. Assembly/installation: surface-mounted component (SMD). Tf(max): 18 ns. Tf(min): 12us. Housing: SOT-23 ( TO-236 ). Housing (according to data sheet): SOT-23 ( TO236 ). Type of transistor: NPN. Operating temperature: -55...+150°C. Vcbo: 20V. Saturation voltage VCE(sat): 0.3V. Collector/emitter voltage Vceo: 12V. Spec info: screen printing/SMD code B2