This new series of digital transistors is designed to replace a single device and its external resistor bias network. The BRT (Bias Resistor Transistor) contains a single transistor with a monolithic bias network consisting of two resistors; a series base resistor and a base–emitter resistor. The BRT eliminates these individual components by integrating them into a single device. The use of a BRT can reduce both system cost and board space. The device is housed in the TO–92 package which is designed for through hole applications.

DTA143E属于分立半导体产品 > 晶体管 - 双极（BJT）- 单，预偏置。安森美半导体公司制造生产的DTA143E晶体管 - 双极（BJT）- 单，预偏置预偏置双极晶体管具有内部电阻器，设计用于在未施加输入信号的情况下将器件保持在偏置或工作点附近。晶体管偏置可使晶体管更有效地工作，并产生稳定、无失真的输出信号。预偏置晶体管减少了所需的外部电路元器件数量，从而可降低项目成本。