Home / Standards / GB/T 5839-1986 GB/T 5839-1986 Active Rating systems for electronic tubes and semiconductor devices 电子管和半导体器件额定值制 Standard Type GBT ICS 31.020 CCS L04 Status 现行 Issue Date 1986-01-29 Implementation 1986-12-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A