Introduction to bd140, bd140 pinout, bd140 power ratings, bd140 applications Departments:Electrical EngineeringElectronics EngineeringMechatronics EngineeringComponents:BD140Softwares:Proteus Hello Friends! Hope this finds you well. I welcome you on board. Thank you for clicking this read. In this post today, I’ll walk you through the Introduction to BD140. BD140 is a mediu ...