Transistor Combo (BD139-BD140)(NPN-PNP)
SPECIFICATIONS OF Transistor Combo (BD139-BD140)(NPN-PNP)
It is a pack of Transistor Combo (BD139-BD140)(NPN-PNP) 5 Pieces Each For High-speed Switching Features:
1.The transistors are silicone planar epitaxial NPN and PNP type transistors.
2.The transistors are specially designed for high-speed switching applications and feature useful current gain over a wide range of collector current low leakage currents and low saturation voltages.
- bd139 pack of 5
- bd140 pack of 5
- Transistor is a basic semiconductor device that control current, which can also be used as a non-contact switch.
- Application: suitable for electronic enthusiasts, repair, design, TV set, power supply, chargers, electronic toys.
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.
BD139 has a gain value of 40 to 160, this value determines the amplification capacity of the transistor. The maximum amount of current that could flow through the Collector pin is 1.5A, hence we cannot connect loads that consume more than 1.5A using this transistor. To bias a transistor we have to supply current to base pin, this current (IB) should be limited to 1/10th of the collector current and voltage across the base emitter pin should be 5V maximum.