Contents
What is the physical difference between the emitter and collector?
The main differences between emitter and collector are doping concentration and size. The emitter is heavily doped, while the collector is lightly doped. You could try to swap them, but you’ll get a very low HFE, probably even less than 1.
What is the size comparison between base emitter and collector?
This is because the work of the emitter is to supply charge carrier to the collector via the base. The size of the emitter is more than base but less than the collector. Base: The size of the base region is extremely small, it is less than emitter as well as the collector.
What does a 2n2222a transistor do?
The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds.
What kind of power does a 2N2222 transistor have?
It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. It was originally made in the TO-18 metal can as shown in the picture. The 2N2222 is considered a very common transistor, and is used as an exemplar of an NPN transistor.
Can you use 2N2222A instead of BC547?
I have use bc547 for a project (Water level indicator). Can i use 2n2222A instead of bc547? How each transistors are selected for each project? There is not much difference when it comes to electrical properties of the two transistors. You can have a look at the datasheets : So your application defines your selection in such cases.
What are the parts of the 2N2222 package?
2N2222A in metal TO-18 package with the emitter, base and collector identified as E, B, and C respectively. Cross section of 2N2222 in metal TO-18 package, showing connection wires between external pins and die.
Which is microelectronics 2N2222A 40 V 800 Ma?
Specifications Manufacturer V ce I c P D f T ST Microelectronics 2N2222A 40 V 800 mA 500 mW/1.8 W 300 MHz