This series of digital transistors is designed to replace a singledevice and its external resistor bias network. The Bias ResistorTransistor (BRT) contains a single transistor with a monolithic biasnetwork consisting of two resistors; a series base resistor and abase-emitter resistor. The BRT eliminates these individualcomponents by integrating them into a single device. The use of a BRTcan reduce both system cost and board space.