GB/T 12859-1991Piezoelectric ceramic resonators -- A specification in the IEC quality assessment System for electronic components (IECQ) -- Part 1: Generic specification -- Qualification approval (English PDF)

Foreword

GB/T 12859 "quality assessment system for electronic components of piezoelectric ceramic resonator" is divided into the following parts.

--- Part 1. Generic specification --- Qualification approval;

--- Part 2. Sectional specification --- Qualification approval;

--- Part 2-1. Blank detail specification --- Assessment level E.

This section GB/T 12859 Part 1.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB/T 12859-1991 "electronic equipment - Generic specification for piezoelectric ceramic resonators (for certification)", and GB/T 12859-1991 compared to the main changes are as follows.

--- According to the general provisions of electronic components quality certification, a comprehensive quality assessment provisions of the rules of procedure;

--- Mechanical and environmental test method references corresponding national standards.

This section uses redrafted law revision using IEC 61253-1:1993 "IEC quality assessment system for electronic components of piezoelectric ceramic resonators Vibration - Part 1. Generic specification --- Qualification approval. " this part of IEC 61253-1:1993 as compared to the presence of technical differences, these differences involve the provision has blank bits through its outer margin Opposing vertical single line (|) were marked. Appendix A gives a list of corresponding technical differences and their causes.

This section also made the following editorial changes.

--- IEC standard number is used in the current directory number, the original standard of number "1253" in accordance with IEC regulations preceded by "6";

--- With GB/T 2828.1-2003 instead of IEC 410. 1973 "counter check sampling plan and procedures", the former and the latter in use no technical difference;

--- Environmental testing with the national standard GB/T 2423 instead of the corresponding IEC 60068, they are no references in this technical part of the difference;

--- 4.11.2.1 Immersion depth. "20 0-0.5mm" to "2.0 0-0.5mm".

This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

This part of the frequency control and selection by the National Focal piezoelectric Standardization Technical Committee (SAC/TC182) devices.

This section drafted by. China Electronic Components Industry Association Branch of the piezoelectric crystal, Zhejiang Jia Kang Electronics Co., Ltd.

1 General