product description:

Power transistor according to the polarity of the product can be divided into NPN and PNP-type transistor, both in addition to the polarity of the power supply, the working principle is the same. Power transistor is a current control device, when the base current (IB) changes slightly, through its amplification performance, the collector current (IC) to enlarge, so as to achieve the purpose of current amplification. At the same time, when the transistor works in the saturation zone, the internal resistance is very small, showing conduction state, similar to the switch "open", and when it works in the cut-off area, the internal resistance is extremely large, the current can not pass, , Similar to the switch "off", in the electronic circuit in the use of its "open", "off" state control circuit turn on and off, the device is the power switch transistor.
 

Product Usage:

In the electronic circuit to control the current amplification, line opening and closing.

 

Product parameters:

IC (A) : 0.1 ~ 80;Ptot (W) : 0.7 ~ 350;VCEO (V) : 20 ~ 800 hFE 20 or more