BD139 Transistor NPN Bipolar Power Transistor (Original)

BD139 Transistor Basics

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

BD139 Technical Specifications:

• 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

Product Specifications:

• Transistor IC Number: BD139
• Number of pins: 3
• Pin Type: Through hole
• Colour: as shown in figure
• Material: semiconductor
• Package contains: 1 piece of original BD139 transistor IC