SM26S watch crystal 2 lead surface mount tuning fork watch crystal 2 x 2 x 6mm axial lead 32.768 khz standard specifications calibration frequency tolerance 20 ppm at 25 c std operating temperature range (otr) -40 to +85 c storage temperature range -55 to +85 c frequency stability over otr calculate as: frequency shift from 25 c to t c in ppm = - 0.035 x (t - 25) 10% load capacitance 12.5 pf std, 6 pf available equivalent series resistance (esr) 50 k ohm typ, 70 k ohm max drive level 1 w maximum aging at 25 c for the 1st year 3 ppm maximum motional capacitance 2.1 ff typical static capacitance 0.9 pf typical part numbering guide model frequency in khz SM26S - 12.5 - 32.768k - xxx (internal code or blank) consult factory for available specifications. a special part number may be assigned. apr 2006 2 (425) 776 - 1880, fax: (425) 776- 2760, ple- sales@pletronics.com, www.pletronics.com pl tronics, inc. mechanical: mm not to scale load capacitance parts are unmarked packaging 16mm tape 4mm pitch pl tronics , inc. 19013 36th ave. w, suite h lynnwood, wa 98036 usa manufacturer of high quality frequency control products .
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