Introduction to mje13009, mje13009 pinout, mje13009 features, mje13009 applications Hi Guys! I welcome you on board. Thank you for clicking this read. In this post today, I’ll walk you through the Introduction to MJE13009. MJE13009 is a semiconductor device made of silicon material that falls under the category of NPN transistors. This device is mainly used for switching and ampl ...