BS DD IEC/TS 61994-4-1:2007 PDF

Published Date: 11/22/2018

Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection. Glossary-Piezoelectric materials. Synthetic quartz crystal

Published Date: 05/30/2008

Piezoelectric and dielectric devices for frequency control and selection. Glossary-Piezoelectric materials. Synthetic quartz crystal

Published Date: 04/15/1979

Detail specification for resistance welded seal quartz crystal units for oscillator applications. DN, DZ, DQ and DP enclosures, 50 to 125 MHz frequency range. Fifth overtone thickness-shear mode, AT-cut, for operation over narrow temperature ranges (temperature controlled). Full assessment level

Published Date: 04/15/1995

Harmonized system of quality assessment for electronic components. Sectional specification: quartz crystal units (capability approval)

Published Date: 03/01/2000