SJ电子行业标准 SJ 20176-1992 半导体分立器件3DG3439型和3DG3440型NPN硅小功率高反压晶体管详细规范 SJ 20176-1992.Semiconductor discrete device Detail specification for NPN silicon low-power high-reve... 01月19日SJ 20176 阅读全文