NPN transistor BD677A, TO-126, 4A. Housing: TO-126. Collector current Ic [A], max.: 4A. Collector-emitter voltage Uceo [V]: 60V. Component family: Darlington NPN Power Transistor. Configuration: PCB through-hole mounting. Cutoff frequency ft [MHz]: -. Housing (JEDEC standard): SOT-32. Manufacturer's marking: BD677A. Max temperature: +150°C.. Maximum dissipation Ptot [W]: 40W. Number of terminals: 3. RoHS: yes. Original product from manufacturer: Stmicroelectronics. Quantity in stock updated on 11/06/2025, 22:14