我们知道,晶体管在工作时,流过的电流会在其结上产生热量,而热量从结向外散发时会遭到阻力,即晶体管的热阻。它是表征晶体管工作时所产生的热能向外消散的一种能力,其度量单位:℃/W。下为晶体管的散热等效模型。 Rt:集电极管壳热阻(又称内热阻) We know that when a transistor is in operation, the current flowing through it generates heat at its junction, and the heat is dissipated from the junction outwards, which is the thermal resistance of the transistor. It is an ability to characterize the dissipation of heat generated by a transistor during its operation, measured in degrees Celsius / W. The next transistor thermal model. Rt: Collector Housings Thermal Resistance (aka Thermal Resistance)