• Charanjeet Singh
• Sayed Tathir Abbas Naqvi
• Kamal Kumar Sharma

BJT is an electronic device with three terminals. It is a versatile device invented by William Shockley and John Bardeen. BJT stands for bipolar junction transistor as the current conduction is due to the two types of charge carries electron and holes. The invention of transistor has revolutionized the field of electronics. It has replaced the bulky vacuum tubes used earlier in the electronic circuits. BJT is a current controlled device since the output can be controlled by the input current. Transistor is capable of increasing strength of a weak input signal called amplification. This amplification characteristic of transistor has made it one of the most widely used semiconductor device. The types, configurations and applications are discussed in this article.

BJT,Amplification,Semiconductor

"Bipolar Junction Transistor and Their Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.1463-1466, March-2019, Available :http://www.jetir.org/papers/JETIREL06222.pdf

"Bipolar Junction Transistor and Their Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp1463-1466, March-2019, Available at : http://www.jetir.org/papers/JETIREL06222.pdf