Home / Standards / GB/T 11499-2026 GB/T 11499-2026 Upcoming 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 即将实施 Issue Date 2026-03-31 Implementation 2026-10-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A