What is 2N222222?
2N222 transistor is a common negative positive negative (NPN) bipolar connecting transistor (BJT), which finds use in many different types of electronic equipment. It is used for both amplification and switching application of analog signal. The functional parts of the transistor 2N2222 are closed in what is called the T-18 package, which resembles a small metal can. The wide range of use for transistor 2N2222 and its small size makes it - and its variants - the most commonly used transistors in electronics.
The functional part of the transistor 2N2222 is the construct of NPN BJT. The 2N2222 transistor is made either from Germania or silicon, which was saturated with a positive or negatively changed material in a process called "doping". 2N2222 has a positively charged section inserted between two negatively charged sections. The resulting two connections between these three sections are a place where 2N2222 derives the name "bipolar junction of transistor." The materials used are arranged in the order of negative, then negative, tIt is also said that the device is a NPN method, 2N2222 is often used to switch the signals on and off.
The switching capabilities of the 2N2222 transistor are also useful as a simple "and" gateway. When used in this capacity, the transistor sends a signal only when two separate signals are present: one on its collector and at its base. This allows the use of 2N2222 to automatically control the signal flow in the circuit depending on the signals or not present.
In the amplification of Application, 2N2222, it receives an analog signal such as an audio signal, a separate signal is applied to its collector and its base. The output on the transistor emitter will then be identical to the collector signal, except that it increases the evolution by the amount of proportional signal applied to its base. In addition, changing the signal applied to the base will change the amplification of the signal leavingemitter.
operating characteristics make 2N2222 low to medium current (up to 600 million), low -energy (up to 625 milliwatt), medium voltage (up to 40 volts). Although these parameters seem to reduce the usefulness of 2N222, 2N2222 is ideal for a range of signal handling and handling applications before high -performance amplification. 2N2222 transistors are also used for signals before and after application to a more advanced digital device.
While 2n2222 was the first of its kind, it was created by a numeral interviewed together by transistors "type 2n2222" because they all share functional design and surgical characteristics identical to the original transistor 2N2222. The main between these variants is the transistor P2N2222, which is closed in a small black to-92 package made of epoxy or plastic. The combination of a large number of uses for 2N2222 and the cost-effective DO-92 package caused the P2N2222 the least expensive and most used transistor in electronics.