euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk euro quartz 32.768khz description EQ158 crystals provide 32.768khz in an ultra-miniature package. the part is designed to provide the smallest possible component size for real-time clock applications. their miniature size and rugged construction make them ideal for battery powered, hand-held equipment. frequency 32.7680khz and from 32.0 to 77.5khz ultra-miniature package: 2.05 x 1.2 x 0.6mm low mass, rugged construction packaged in standard eia tape and reel outline & dimensions nominal frequency: 32.768khz storage temperature range: -55 to +125c operating temperature range: -40 to +85c drive level: 0.5w maximum standard frequency tolerance: 30ppm or 50ppm (tighter tolerances available) turnover temperature: 25c5c parabolic coefficient: -0.04ppm/c 2 maximum load capacitance: 12.5pf motional resistance (esr): 65k to 90k maximum motional capacitance: 2.7ff to 7.0ff, 6.4ff typical shunt capacitance: 1.3pf typical, from 1.6pf to 0.8pf ageing: 3ppm max. in first year @25c specification 32.7680 12.5 ph32768v 30/-40+85/90k frequency (khz) cl (pf) stock number part number and specification tolerance (ppm)/ temp. range (c)/ max. esr (ohms) stability over temperature x-cut crystal EQ158 crystal 2 x 1.2 x 0.6mm ultra-miniature smd
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