SMX-315 ceramic packaged smd watch crystal 2002/95/ec rohs compliant 03 may. 10 quartzcom ag quartzco m asia quartzcom usa sales@quartzcom.com sale s-asia@quartzcom.com sa les-usa@quartzcom.com www.quartzcom.com features ? applications: telecommunications, audio, automotive, medical ? ultra low profile ceramic package ? reliable, low cost crystal ? reflow soldering @ 260 c parameter specification nominal frequency 32.768 khz frequency tolerance 20 ppm @ +25 c frequency stability vs. temperature 100 ppm over -20 ~ +70 c 150 ppm over -40 ~ +85 c aging 3 ppm 1 st year load capacitance parallel resonance (cl = 8 ~ 12.5 pf) series resistance 70 k max. motional capacitance 2.5 ff typ. shunt capacitance 1.4 pf typ. drive level 0.1 w typical < 0.5 w turnover temperature +25 c 5 c temperature coefficient -0.035 x (t-to) 2 ppm/c 2 operating temperature range -20 ~ +70 c commercial application -40 ~ +85 c industrial application storage temperature range -55 ~ +125 c packaging unit tape & reel 1?000 or 3?000 pieces customer specifications on request example for soldering pattern do not design any conductive path between the pattern example for ir reflow soldering temperature
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