BD139 NPN Transistor – 1.5A 80V Medium Power Transistor TO-126 - Image 1
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BD139 NPN Transistor – 1.5A 80V Medium Power Transistor TO-126
BD139 NPN Transistor – 1.5A 80V Medium Power Transistor TO-126 - Image 2

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BD139 NPN Transistor – 1.5A 80V Medium Power Transistor TO-126

SKU: D108

Specification

Product: BD139 NPN Transistor
Collector Current (DC) (A): 1.5
Junction Temperature (°C): 150
Collector-Base Voltage (Vcb) (V): 80
Collector-Emitter Voltage (Vce) (V): 80
Emitter-Base Voltage (Veb) (V): 5
DC Current Gain (hFE): 40 – 250
Power Dissipation (W): 1.25
Transition Frequency (MHz): 190
Package Type: TO-126
Mounting Type: Through Hole

₹17.00 (Incl. GST)

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    Description

    The BD139 NPN Transistor is a high-performance, medium-power transistor designed for audio amplification, switching, and voltage regulation applications. With a collector current of 1.5A and voltage rating of 80V, it is widely used in power supply circuits, motor drivers, audio amplifiers, and general electronic projects.

    Its robust TO-126 package ensures excellent heat dissipation, making it ideal for DIY electronics, industrial designs, and educational kits.

    Applications:

    • Audio amplifier output and driver stages

    • Relay and motor driver circuits

    • Voltage regulators and power supply circuits

    • Switching and signal processing

    • Arduino, ESP32, and embedded electronics projects

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