Transistor and IC
BD139 NPN Transistor
Availability:
200 in stock
BD139 is a famous PNP type transistor, it is used in many electronics circuits, this transistor can handle current upto 1.5A or 1500mA, due to which it can be used to drive loads upto 1.5A in electronic circuits, for example high power LEDs, relays, motors and more, with these features it has lots of other features.
₹6.00
200 in stock
CompareThe BD139 is a medium power, NPN bipolar junction transistor (BJT) that is used as audio amplifier and driver in complementary or quasi-complementary circuits :
- Uses : The BD139 is used in high power audio amplifiers and home theater systems.
- Features : The BD139 has a maximum working voltage of 80 volts, a maximum collector current of 1.5 amps, and a maximum power dissipation of 12.5 watts. It also has a low saturation voltage of 5 volts, which makes it easy to use in digital electronics.
- Package : The BD139 is a 3-pin transistor in a SOT-32 package.
- Related transistors : The complementary PNP types of the BD139 are the BD136 and BD140.
BD139 Pinout Configuration
| Pin Number | Pin Name | Description |
| 1 | Emitter | Current Drains out through emitter, normally connected to ground |
| 2 | Collector | Current flows in through collector, normally connected to load |
| 3 | Base | Controls the biasing of transistor, Used to turn ON or OFF the transistor. |
Datasheet_ BD139 / BD140
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