BD139 Transistor, NPN Simple, 3 A, 80 V, SOT-32, 3 broches

The BD139 is a general-purpose NPN transistor manufactured by STMicroelectronics. It is designed to handle a maximum continuous collector current of 3 A and a collector-emitter voltage of 80 V. Housed in a through-hole SOT-32 (TO-126) package with 3 pins, this transistor offers a maximum power dissipation of 1.25 W and a minimum DC current gain (hFE) of 25.

Ideal for switching and power amplification applications in electronic projects, it operates within a temperature range up to 150°C.