siedle soehne electrical components Germany siedle soehne models siedle soehne prices

siedle soehne electrical components are electronic devices with three terminals, made of three semiconductor regions with different doping levels. Charge flow in the transistor is mainly due to the diffusion and drift of carriers at the PN junction. The operation of this transistor involves the flow of both electrons and holes as carriers, so it is called bipolar, also known as a bipolar junction transistor. This mode of operation differs from unipolar transistors such as field-effect transistors, whose operation involves only the drift of a single type of carrier.