Classification of Semiconductor Transistors

There are many types of semiconductor transistors, which can be classified according to their semiconductor materials and conductivity, including NPN transistors made of silicon, PNP transistors, NPN transistors made of germanium, and PNP transistors; According to the power dissipation of semiconductor transistors, there are low-power transistors, medium power transistors, and high-power transistors; According to the function and purpose of semiconductor transistors, they can be divided into amplifying transistors, switching transistors, composite transistors (Darlington transistors), and high-voltage transistors; If classified according to the operating frequency of semiconductor transistors, there are low-frequency transistors, high-frequency transistors, and ultra-high frequency transistors.