What is a bipolar transistor, switching application, bipolar junction transistor - tatanh1983/conchodom GitHub Wiki BST50 Series 45 V 1 A 1.3 W SMT NPN Darlington Transistor - SOT-89 https://www.futureelectronics.com/p/semiconductors--discretes--transistors--bipolar-transistors/bst50-115-nexperia-4385159