本文试图通过简要理论分析和计算探索为电视机配套的大功率晶体管F型管壳采用代用材料的可能性:简要分析和计算表明采用钢材作为硅低频大功率晶体管F型管壳是可行的。从晶体管使用的某些角度上,管壳改革是允许的,如果管芯某些参数未能保证,即使采用铜材料管壳,晶体管也未必可靠。 一、大功率晶体管的管壳设计 众所周知,晶体管必须在一定的电压电流下工作。由于电流热效应引起发射结和集电结发热,而发射结处于正向,电阻小,集电结处于反向,电阻大,所以集电结的发热量远远超过发射结的发热量。以至可以认为:晶体管的热源在集电结。随着集电结所加 This paper attempts to explore the feasibility of using alternative materials for high-power transistor F-type housings for TV sets through brief theoretical analysis and calculation: a brief analysis and calculation shows that it is feasible to use steel as the F-type low-power high-power transistor tube. Shell reform is allowed from some perspectives of transistor use, and if some of the die parameters are not warranted, the transistor may not be reliable even with copper tubing. First, the power transistor shell design As we all know, the transistor must work under a certain voltage and current. Because of the current thermal effect caused by the emitter junction and collector junction heating, and the emitter junction in the positive, the resistance is small, collector junction in the reverse, the resistance is large, so the collector junction heat far exceeds the launch of the heat. It can even be considered: the heat source of the transistor is collecting junction. With the collector junction added