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bd 139 transistor

Original price was: ₹35.00.Current price is: ₹10.00.

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A medium-power NPN transistor rated for 80V and 1.5A. Ideal for audio amplifiers, power switching, and general-purpose applications. Comes in a TO-126 package with good heat dissipation.

Description

The BD139 is a NPN medium-power transistor commonly used for general-purpose amplification and switching applications. It is designed to handle higher current and voltage levels compared to small-signal transistors, making it suitable for use in audio amplifiers, motor drivers, and power regulation circuits.

Key Features:

  • Type: NPN

  • Collector-Emitter Voltage (Vce): 80V

  • Collector Current (Ic): 1.5A max

  • Power Dissipation: Up to 12.5W with proper heat sinking

  • DC Gain (hFE): 40 to 250

  • Package: TO-126 (with metal tab for heat sinking)

Applications:

  • Audio amplifiers

  • Voltage and current regulation

  • Relay drivers

  • Power switching circuits

  • Motor control systems

The BD139 is known for its reliability, decent gain, and ability to drive moderate loads, making it a popular choice for both hobbyists and professionals in power electronics.

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Khuladibba Enterprises is a forward-thinking startup dedicated to empowering creativity and innovation through technology. We specialize in designing and providing high-quality DIY kits, electronic components, and smart solutions for tech enthusiasts, students, and makers of all levels.

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