BD139 - 1.5A 90V NPN - TO126 Transistor

BD139 - 1.5 A 90 V NPN Transistor - TO-126

The BD139 is an NPN bipolar junction transistor (BJT) designed for medium power applications. It is widely used in audio amplifiers, power driver circuits, and switching systems thanks to its high current and voltage handling capabilities. The TO-126 package provides effective heat dissipation and easy mounting. With a low saturation voltage (V_CE(sat)) and high gain (hFE), it offers efficient and reliable performance.

BD139 - 1.5 A 90 V NPN Transistor - TO-126 Specifications:

• Transistor Type: NPN

• Maximum Collector-Emitter Voltage (V_CE): 80 V - 90 V

• Maximum Collector Current (I_C): 1.5 A

• Power Dissipation (P_D): 12.5 W

• Gain (hFE): 40 - 160

• Low Saturation Voltage (V_CE(sat)): 0.5 V (typical)

• Operating Temperature Range: -65°C ~ +150°C

• Package Type: TO-126

Useful Documents:

• BD139 Datasheet

Similar Products:

• BD Series Transistors
• Transistors