Darlington Connection

NPN BJT transistors set up in a Darlington connection configuration. An NPN transitor is also wired up in a standalone fashion to compare differences in current amplification. 💬 Normally the Emitter current of a Transistor is its Max forward current beta (BF) multiplied by its Base current. 💬 For Transistors connected in a Darlington configuration, the Emitter Current on the external Emitter pin is the product of the BF's of both Transistors, multiplied by the current on the external Base pin.