RoHS: yes. Housing: PCB soldering. Housing: TO-92. Housing (JEDEC standard): TO-226. Configuration: PCB through-hole mounting. Number of terminals: 3. Manufacturer's marking: BC547B. Collector-emitter voltage Uceo [V]: 45V. Collector current Ic [A], max.: 100mA. Cutoff frequency ft [MHz]: 300 MHz. Maximum dissipation Ptot [W]: 0.5W. Operating temperature range min (°C): -55°C. Operating temperature range max (°C): +150°C. Component family: NPN transistor. Number of terminals: 3. Pd (Power Dissipation, Max): 0.5W. Assembly/installation: PCB through-hole mounting. Technology: 'Epitaxial Planar-Transistor'. Housing (according to data sheet): TO-92. Type of transistor: NPN. Operating temperature: -55...+150°C. Vcbo: 50V. Saturation voltage VCE(sat): 0.25V. Maximum saturation voltage VCE(sat): 0.6V. Collector/emitter voltage Vceo: 45V. Vebo: 6V. Spec info: complementary transistor (pair) BC557B