Home / Standards / GB/T 11499-2001 GB/T 11499-2001 Active Letter symbols for discrete semiconductor devices 半导体分立器件文字符号 Standard Type GBT ICS 31.080.01 CCS L40 Status 现行 Issue Date 2001-11-05 Implementation 2002-06-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A