Piezoelectric ceramic resonators - A specification in the IEC quality assessment system for electronic components (IECQ) - Part 2: Sectional specification; qualification approval; identical with IEC 61253-2:1993
压电陶瓷谐振器.IEC电子元件质量评定系统(IECQ)规范.第2部分:分规范;资质审批;与IEC 61253-2:1993相同