3.2 1.5mm for consumer/ mobile equipment khz range crystal devices crystal units surface mount type: tuning fork st3215sb features ? small, low profile ? ceramic package ? reflow compatible applications ? consumer/ mobile equipment how to order st3215sb 32768 series frequency 32.768khz load capacitance h5 12.5 pf frequency tolerance h 20 10 - 6 operating temp. range p - 40 to + 85 c frequency temp. stability w 200 10 - 6 individual specification packaging (tape & reel 3000/ 10000 pcs./ reel) specifications item symbol specification units remarks nominal frequency f _nom 32.768 khz frequency tolerance f _tol 10, 20 10 - 6 25 c 3 c turnover temperature ti + 25 5 c parabolic coefficient b - 0.04 max. 10 - 6 / c 2 motional resistance r1 70 max. k-ohm motional capacitance c1 3.7 typ. ff shunt capacitance c0 0.9 typ. pf load capacitance cl 12.5/ 9.0/ 7.0 pf please contact us drive level dl 0.1 w 0.5 max. operating temp. range t _use - 40 to + 85 c storage temp. range t _stg - 55 to + 85 c frequency aging f _age 3 10 - 6 3.20.1 0.80.1 1.50.1 1.7 dimensions (unit: mm) 1.0 2.6 1.55 recommended land pattern (unit: mm) rohs compliant
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