What is Bipolar junction transistor?
[[File:Using Transistor.jpg|thumb]] A '''bipolar junction transistor''' ('''BJT''' or '''bipolar transistor''') is a type of [[transistor]] that relies on the contact of two types of [[semiconductor]] in order for it to work. BJTs can be used as [[amplifier]]s, switches, or in [[oscillator]]s. BJTs can be found either on their own, or in large numbers as parts of [[integrated circuit]]s.<ref>[https://eandc.ru/news/detail.php?ID=21477 Bipolar transistors: device, principle and modes of operation, switching circuit, application, main parameters]</ref> They are named ''bipolar'' transistors because their operation involves both [[electron]]s and [[electron hole|holes]]. The current gained is measured in h<sub>fe</sub>, Forward Current Gain. Typical amount can be between 200-350. ==Other websites== {{Commons category|Bipolar junction transistors}} * [http://courses.ece.illinois.edu/ece110/simulation/bjt/ Simulation of a BJT in the Common Emitter Circuit] {{Webarchive|url=https://web.archive.org/web/20100716124514/http://courses.ece.illinois.edu/ece110/simulation/bjt/ |date=2010-07-16 }} == References == {{reflist}} {{DEFAULTSORT:Bipolar Junction Transistor}} [[Category:Electronics]]