Description
BD140 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 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.
Pin 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. |
Applications
- Audio Amplifiers
- Switching Loads under 1.5A
- Battery Chargers
- Power Supplies
- Motor Driver
- Darlington Pair
Specification
- Package Type: TO-126
- Transistor Type: PNP
- Max Collector Current(IC): -1.5A
- Max Collector-Emitter Voltage (VCE): –80V
- Max Collector-Base Voltage (VCB): –80V
- Max Emitter-Base Voltage (VEBO): –5V
- Max Collector Dissipation (Pc): 12.5 Watt
- Max Transition Frequency (fT): 190 MHz
- Minimum & Maximum DC Current Gain (hFE): 25 – 250
- Max Storage & Operating temperature Should Be: -55 to +150 Centigrade