BS 9611 N005:1977

Detail specification for solder-sealed quartz crystal units for oscillator applications. AA, CX and BC/1 enclosures, 0.8 to 20 MHz and 3.0 to 30 MHz frequency ranges. Fundamental thickness-shear mode, AT-cut, for operation over narrow temperature ranges (temperature controlled). Full assessment level

BSI Group , 06/15/1977