What is the use of BD140 transistor?
The BD140 is a medium power bipolar junction PNP transistor that is mainly used for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. It is made up of silicon and comes in the TO-126 package.
What is the use of BD139 transistor?
What is BD139 NPN Transistor? A Bipolar NPN transistor like BD139 is available in the SOT-32 plastic package. This kind of transistor is used in different electronic circuits because of less cost and high collector current. This transistor can drive upto 1.5A loads like motors, high power LEDs, relays, etc.
What is the function of PNP transistor?
PNP transistors are used to source current, i.e. current flows out of the collector. PNP transistors are used as switches. These are used in the amplifying circuits. PNP transistors are used when we need to turnoff something by push a button.
What is D882 transistor?
The D882 is a medium power NPN transistor that features a high collector-emitter breakdown voltage and medium current carrying capability. It can also be mounted on a heatsink using the screw hole in the SOT-32 package.
What is BC548 transistor?
The BC548 is a general-purpose NPN bipolar junction transistor commonly used in European and American electronic equipment. It is notably often the first type of bipolar transistor hobbyists encounter and is often featured in designs in hobby electronics magazines where a general-purpose transistor is required.
What is TIP42C transistor?
The TIP42C is a -100V PNP complementary silicon plastic Power Transistor designed for use in general purpose power amplifier and switching applications. 100V Minimum collector-emitter sustaining voltage (VCEO (sus)) 1.5V Maximum collector-emitter saturation voltage (VCE (sat) at IC = 6A)
What is the use of NPN and PNP transistor?
NPN transistors are used as a sink to the current i.e., current flows to the Collector. It means the current points inwards. PNP transistors are used as a source to the current i.e., current flows out of the Collector. In the NPN transistor, electrons are important current carriers.
What is the difference between PNP and NPN transistor?
PNP switches On by a low signal whereas NPN switches ON by a high signal. As we are aware that in PNP transistor, the P represents the polarity of the emitter terminal and N represents the polarity of the base terminal.
Is D882 NPN or PNP?
The D882 is an NPN transistor that is capable of handling voltages up to 30V and currents up to 3A, with a 6A peak for pulses less than 5ms.
What is a bd140 transistor?
BD140 Transistor Explained / 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…
What are the technical specifications of bd139 transistors?
Technical Specifications of BD139 Transistors are: 1) Transistor Type: NPN 2) Max Collector Current (IC): 1.5A 3) Max Collector-Emitter Voltage (VCE): 80V
When to use Darlington transistors for power supply?
When large currents or voltages need to be controlled, Darlington Transistors can be used. Though the best choice for power transistors is BD139 and BD140 but if they are not available then you may also go for BD135 and BD136 which are NPN and PNP transistors respectively but preference must be given to BD139/140 pair.
What is a bipolar transistor and how does it work?
A bipolar transistor allows a small current injected at one of its terminals to control a much larger current flowing between two other terminals, making the device capable of amplification or switching. BJTs are of two types known as NPN and PNP transistors. In NPN transistors electrons are the majority charge carriers.