BD139 Transistor NPN Bipolar Power Transistor (Original)

BD139 is a General purpose NPN transistor with low voltage and medium power. It is a series of plastic transistors. This transistor finds applications in audio amplification and it drives utilizing complementary and quasi-complementary circuits.

Specification:

• Transistor type: low voltage NPN transistor
• Collector-emitter voltage: 80 Volts
• DC Collector Current: 1.5 Amps
• Power dissipation: 1.25 Watt
• DC Current Gain hFE: 250 hFE
• Package type: TO-226
• Maximum operation temperature: 150 ºC