2.5 quartz smd featur es: - sur face mount - high per formance/cost ratio - ex cellent vibr ation & shock resistance a uris - gmb h office@au ris - gm bh.de ww w. au r i s - gm bh.de a l l spec if ica t io n s a re s ub je ct to ch ang e w it ho u t no tic e. or der key q - 32.768000k - LC4918 - 50 - b - 12.5 - tr par t frequenc y packag e frequenc y temperatur e load option toler ance range capaci tance q=quartz k=kh z LC4918 ppm a= 0c ~ +70 c pf tr=tape and reel (25c) b= -10 c ~ +60c sr=s eries x =spec ial opt ions c= -10c ~ +70 c d= -20c ~ +70 c e= -40 c ~ +85c drawing LC4918 dimensions in mm specifications sym bol LC4918 frequency range f 32.768khz frequency tolerance,t a=25c ?f/f 20ppm ~ 50ppm (s td.) load capacitance c l 12.5pf t emp.coefficient a -0.034 0,006ppm/c2 t emperature range storage t emp. t stg -55c ~ +125c oper ating temp. t opr -40c ~ +85c dl 1w series resistance r 1 70k ohm shunt capacitance c 0 1.2pf insulation resistance i r 500m ohm aging ?f a 5ppm/y ear driv e level m ax (25c 3c ) rem arks standard other s are offered please specify mi n ma x other s are offered standard typ . LC4918
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