RoHS: yes. Housing: PCB soldering. Housing: TO-126. Housing (JEDEC standard): SOT-32. Configuration: PCB through-hole mounting. Number of terminals: 3. Manufacturer's marking: BD139. Collector-emitter voltage Uceo [V]: 80V. Collector current Ic [A], max.: 1.5A. Maximum dissipation Ptot [W]: 12.5W. Operating temperature range min (°C): -65°C. Operating temperature range max (°C): +150°C. Component family: NPN power transistor. Cutoff frequency ft [MHz]: 50 MHz. Collector current: 1.5A. Ic(pulse): 3A. Number of terminals: 3. Pd (Power Dissipation, Max): 12.5W. Assembly/installation: PCB through-hole mounting. Housing (according to data sheet): TO-126. Type of transistor: NPN. Vcbo: 80V. Maximum saturation voltage VCE(sat): 0.5V. Collector/emitter voltage Vceo: 80V. Spec info: complementary transistor (pair) BD140. Housing: TO-126 (TO-225, SOT-32)