63 fox electronics 5570 enterprise parkway fort myers, florida 33905 usa +1.239.693.0099 fax +1.239.693.1554 www.foxonline.com emea tel: + 44 .11283.568153 | asia hong kong tel: +852.2854.4285 fax +852.2854.4282 | japan tel: +81.3.3374.2079 fax: +81.3.3374.5221 ? 2010 fox electronics | iso9001:2008 certified rev. 6/6/2006 features ? miniature packages ? low cost ? cold weld design ? long term stability ? tight tolerance all specifications subject to change without notice. note: can should not be soldered to the circuit board or grounded. if securing the can to the board is desired, a rubber adhesive is recommended. 32.768 khz 20 ppm -0.04 ppm / (?oc) 2 +20oc ~ +30oc -20oc ~ +60oc -30oc ~ +70oc 50 k? 35 k? 12.5 pf (standard) 6 pf (optional) 500 m? min 1.0 w 3 ppm parameters frequency frequency tolerance @ 25oc frequency stability temperature coefficient temperature range turnover (t o ) operating (t opr ) storage (t stg ) equivalent series resistance (r s ) nc15 / nc26 nc38 load capacitance (c l ) insulation resistance @ 100v dc drive level aging per year ? standard specifications max (unless otherwise noted) all dimensions are in millimeters. frequency stability -20 oc~ +60 oc -20 oc~ +60 oc -20 oc~ +60 oc 32.768 khz 32.768 khz 32.768 khz nc15lf nc26lf nc38lf model number part number 298lf-frequency-xxxxx 299lf-frequency-xxxxx 300lf-frequency-xxxxx ? part number selection learn more - internet required frequency -0.04 ppm / (?oc) 2 -0.04 ppm / (?oc) 2 -0.04 ppm / (?oc) 2 thru-hole tuning fork rev. 7/23/2010 rohs compliant / pb free http://www.foxonline.com/need_a_sample.htm model: nc15lf/nc26lf/nc38lf operating temperature 5.0 max 1.5 max 4.5 min 0.45 6.0 max 4.0 min 0.7 0.15 2.0 max 8.3 max 9.0 min 3.0 1.1 0.2 0.22 0.06 0.2 0.07 0.3 0.07 nc38lf nc26lf nc15lf 5.0 max 1.5 max 4.5 min 0.45 0.22 0.05
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