Hello, readers welcome to the new tutorial. Here we will discuss Introduction to 2N2907 PNP Transistor. In switching and amplifiers circuits there is a very common use of transistors. It is a very simple and basic part of the electronic industry. Comes in different categories but have two main NPN and PNP.
These configurations are created according to polarity levels like P and materials that are used for doping. It has three main pinouts emitter, base, and collector. Here we will cover the basics of the 2N2907 PNP Transistor
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Introduction to 2N2907 PNP Transistor
- 2n2907 is PNP configured bipolar junction transistor that is used in high current applications such as a load of six hundred milliamperes and voltage need of forty volts
- It comes in metallic assembly and all parts are enclosed in it.
- There are two modes of operation it has first one is forward biased and the second one is reverse biased.
- For reverse-biased there should be zero volts given at the base terminal and in a reverse-biased state volts are provided at the base.
- It used as amplifies since it offered the gain value of about one hundred to three hundred
- In-circuit where it operating as switch work in the saturation and cut off region.
- Working state during amplifiers is an active mode
2N2907 PNP Transistor Pinout
- There are three main pinouts it has’
- EMitter: Current comes out from this point
- Base: Work as a control for components like tap
- Collector Larger than other two parts and get the supply
PNP Transistor Construction
- There are three main parts of PNP transistor. Two are P and one N part is positioned between two P regions.
- P region is larger portions that represent the emitter and collector portion and N is less doped and has a small area called the base.
- Depletion regions of these two P parts lie to the N side.
- In the PNP configuration of transistors, there are holes in the majority and electrons in minority. Holes send by the emitters collected at the collector.
- The current sent from the base to collectors get results in amplification and the base is used as a controller of current.
- Due to the small area of the base very little current exist in it and moves to other parts.
How PNP Transistor Works
- In the case of forwarding biased stare at emitter and base terminals, there is IE is produced and exert the force at the holes to the base that is less doped and N region.
- These holes combine with the electrons existing in the base and due to the small size of the base and less number of electrons other holes go to the collector and the base current is generated so in a simple way current in PNP transistors is due to holes that are in majority carriers. The identification of PNP transistors is done through the use of their physical dimensions and structure.
- If of do its comparison to the NPN transistor there is a very vast variation exist in the structure of these two.
- If a positive voltage is provided to PNP it is in off stare and on for negative polarity source.
- With that there is resistance difference is measured among the pinout of transistors to make difference between NPN and PNP.
- There are some standard values given to resistance that help to find the differences. It is a very helpful technique to know the parameters of PNP
2N2907 PNP Transistor Features
- Its main features are listed here
- The operating temperature for this device is minus sixty-five to one fifty
- Dc gain is one hundred to three hundred
- Power dissipation is four hundred milliwatt
- IC for this device is six hundred milliamperes
- Transition Frequency is 200 MHz
- VCE is forty volts
- VCB is sixty volts
- Comes in two types of packaging TO-92 and T0-18
- It is PNP general purpose transistor.
2N2907 PNP Transistor Applications
- it works as a switch
- Used as amplifies
- Employed in Darlington pair
- Used in low current applications
That is a detailed post about the 2n2907 i have explained each and every parameter about this module if you have any further query ask in the comments. Thanks for reading have a good day