SN55115AJSN55119JGSN55117JGSN55121AJ¥20去看看电子元件88888发布了全新SN55121AJ SN55119JG SN55117JG SN55115J. SN55115AJ贴片SN74128NSN54F38JSN55121J¥20去看看芯片二极管三极管电容电阻集成电路发布了贴片直插SN55138J,SN55121J,SN5483AJ,SN54F38J,SN74128N,4