NPN transistor BD681G, TO-225, 4A. Housing: TO-225. Collector current Ic [A], max.: 4A. Collector-emitter voltage Uceo [V]: 100V. Component family: Darlington NPN Power Transistor. Configuration: PCB through-hole mounting. Cutoff frequency ft [MHz]: -. Housing (JEDEC standard): TO-225. Manufacturer's marking: BD681G. Max temperature: +150°C.. Maximum dissipation Ptot [W]: 40W. Number of terminals: 3. RoHS: yes. Original product from manufacturer: Onsemi. Quantity in stock updated on 11/06/2025, 22:14