2N3904 Transistor Pinout, Features and applications

The 2N3904 is basically an NPN transistor made up of silicon material. It is used for a general-purpose switch and amplifier. It supports the current up to 100mA when acts as a switch and It supports the frequency up to 100MHz while acting as an amplifier. 2N2222A is also an NPN transistor and is quite similar to 2N3904. 2N3904 is NPN Bipolar Junction Transistor designed for switching purposes at 100mA and as an amplifier at 100MHz frequency. It comes in the TO-92 package and used in a wide range of applications. It can be used in televisions, we can use it in home appliances, can be used as a small load switch, it can also be used as an amplifier.