Quartz Crystal Units 31SMX 31SMX STANDARD LOW FREQUENCY SMD CRYSTALS STANDARD SPECIFICATIONS XTAL Item Part number Package type Nominal frequency Frequency tolerance at Actual Size Symbol P/N F 25˚C f/F CL Rs P Tt Q Co C1 f/F Ri To Ts f/F f/F f/F 12.
5 pF 9pF 7pF Specifications 31M327 31SMX 32.
768 kHz B: 20 ppm C: 30 ppm (standard) D: 50 ppm 31M327 31M327-9 31M327-7 31SMX 3.
2±0.
1 1.
2±0.
1 Load capacitance Equivalent series resistance Drive level Turnover temperature Temperature coefficient Quality factor Shunt capacitance Motional capacitance Capacitance ratio Aging (for first year) Insulation resistance Cut Operating temperature range Storage temperature range Shock resistance Vibratio...

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