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Are all PNP transistors the same?
PNP Transistor Basically, this transistor works the same as the NPN transistor. The materials which are used to construct the emitter, base and collector terminals in the PNP transistor are different from those used in the NPN transistor. The PNP transistor bias setup is shown in the below figure.
In what case will the PNP transistor be replaced with an NPN transistor?
Generally, the PNP transistor can replace NPN transistors in most electronic circuits, the only difference is the polarities of the voltages, and the directions of the current flow. PNP transistors can also be used as switching devices and an example of a PNP transistor switch is shown below.
Can you convert PNP to NPN?
If you have the exact NPN equivalent you only need to mount the circuit as it is drawn, so that the base, collector and emitter terminals of the NPN are connected where base, collector and emitter of the PNP should go, and then reverse the power supply polarity.
What happens if a transistor is either NPN or PNP?
Beyond operation temperatures and typical applications, the below basic transistor parameters need to be considered. It is necessary to find out whether the transistor is either NPN or PNP. Incorrect type will reverse the voltages and may result in the destruction of the transistor or damage to your equipment.
What should be considered when choosing a transistor replacement?
When looking for a suitable transistor replacement some of the basic transistor parameters that need to be considered include the following: Semiconductor material used: Most transistors will either be germanium or silicon. Other types are normally only used in very specialist applications.
How are bipolar transistors connected in parallel tips?
Bipolar Transistors (BJTs) can be connected in parallel if balancing resistors are placed in series with the emitter. BJTs generally tend to become more conductive as their temperature increases.
Which is an example of a complementary transistor?
A pair of corresponding NPN and PNP transistors with near identical characteristics to each other are called Complementary Transistors for example, a TIP3055 (NPN transistor) and the TIP2955 (PNP transistor) are good examples of complementary or matched pair silicon power transistors.