Description
BD140 PNP power Transistor
BD140 is a PNP type transistor, it is used in many electronics circuits, this transistor can handle current upto 1.5A, 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 like its high collector emitter and collector base voltage that is 80 volts, make it an ideal transistor to use in circuits using 80 volts DC or below 80 volts. Moreover the collector dissipation of this transistor is around 12.5 watt due to which it’s a good transistor to use in audio amplifier circuits. The minimum base voltage or saturation voltage of the transistor is 0.5V.
BD140 is an ideal transistor to use in educational and hobby electronics projects for example in analog circuits, arduino projects and other microcontroller projects. Moreover it is also used in industrial electronics. The maximum load this transistor can drive is 1.5A therefore it can be used to drive a variety of loads under 1.5A. When using this transistor for load more than 200mA it is recommended to use a suitable heatsink with it.
Another peculiar fact about this transistor is that it comes in a plastic package, while most medium power transistors are available only in a metal can package. This reduces the cost of the Transistor and also since the package is not conductive it will not be affected by other noise in the circuit. Due to this feature, this transistor is widely used in amplifier applications.
So if you are looking for a medium power PNP transistor in Plastic package then this Transistor might be the right choice for you.
The complementary NPN types are the BD139.
PIN DIAGRAM :
| 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 the transistor, Used to turn ON or OFF the transistor. |
FEATURES :
- Plastic casing PNP Transistor
- Continuous Collector current (IC) is 1.5A
- Collector-Emitter voltage (VCE) is 80 V
- Collector-Base voltage (VCB) is 80V
- Emitter Base Breakdown Voltage (VBE) is 5V
- DC current gain (hfe) is 40 to 160
- Available in To-225 package
APPLICATIONS :
- RF Amplifiers
- Switching circuits
- Amplification circuits
- Audio amplifiers
- Load driver circuits
PACKAGE INCLUDES :
3 x BD140 PNP power Transistor
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