Home / Standards / GB/T 249-2017 GB/T 249-2017 Active The rule of type designation for discrete semiconductor devices 半导体分立器件型号命名方法 Standard Type GBT ICS 31.080.01 CCS L40 Status 现行 Issue Date 2017-05-12 Implementation 2017-12-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A