KS C IEC 61253-2-1-2002 压电陶瓷谐振器.电子元器件质量评定体系.第2部分:规范.资格认可.第1节:E级评定
Piezoelectric ceramic resonators-A specification in the IEC quality assessment system for electronic components(IECQ)-Part 2:Sectional specification-Qualification approval-Section 1:Blank detail specification-Assessment level E