The field effect tube (FET) converts the input voltage change into the output current change. The gain of a FET is equal to its transconductance, defined as the ratio of the change in output current to the change in input voltage. The common ones on the market are generally N-channel and P-channel.
The commonly used packages for SMD MOS tubes are SOT-23, SOT-523, SOT-323, TO-252, TO-263, etc.
2N7002 SOT-23 2N7002K SOT-23 2N7002E SOT-23 2N7002T SOT-523 2N7002W SOT-323 A03401 SOT-23 AO3400 SOT23 AO3415A SOT-23 SI2300 SOT-23 SI2301 SOT-23 SI2302 SOT-23 SI2305 SOT-23 IRFR3518 TO-252 IRLR3110Z TO-252 IRLR2908 TO-252 2N60 TO-252 4N60 TO-252 5N20 TO-252 FQB6N60C TO-263 IRF830AS TO-263 and other models.
MOS tube brands generally include: Changdian Fairchild VISHAY IR ON and so on.
Physically speaking, the scope of transistor is very large. It is a solid semiconductor device with multiple functions such as detection, rectification, amplification, switching, voltage stabilization, and signal modulation. Pingshang Technology's main SMD transistor series, the main categories are: SMD diodes, SMD transistors, FETs and MOS transistors.