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 95SMX(g) crystals description 95SMX(g) crystals are miniature surface-mount crystals specifically designed to provide a low-cost and reliable source of real time clock frequency, 32.768khz for mass-market applications, and also frequencies in the range 30khz to 100khz. the parts are low-profile, and of low mass. the package is encapsulated in epoxy resin. outline & dimensions nominal frequency: 32.7680khz and 30.000khz to 100.00khz calibration tolerance at 25oc: 20 ppm, 30 ppm, 50 ppm (std.) and 100 ppm load capacitance (cl): 12.5pf typical equivalent series resistance (esr): 50k max. drive level: 1.0 w max. turnover temperature: +255c temperature coefficient: -0.034/c 2 (parabolic function) q: 50,000 minimum shunt capacitance: 0.8 to 1.7pf motional capacitance: 0.001 to 0.004pf capacitance ratio: 330 to 800 ageing (first year): 5ppm max. at 25 3c insulation resistance: 500m minimum @100vdc crystal cut: xy-cut operating temperature range: -40 to +85c storage temperature range: -55 to +125c shock resistance: 5 ppm max. vibration resistance: 5 ppm max. ir reflow resistance: 10ppm max. reflow condition: 10 seconds max. at 250 10c package outer package: plastic sealing: press fit (2x6mm built-in) terminal lead frame: copper alloy (cusn) terminal plating: sncu delivery format: eia tape and reel, 3k pieces/reel rohs status: compliant specification part number and specification stability over temperature xy-cut crystal 7.9 x 3.7 x 2.4mm smd frequency range 30.0khz to 100.0khz industry-standard package compact and low-profile supplied on eia tape and reel order format = 32.768khz 95SMX(g) 20ppm, 12.5pf 32.768khz frequency package calibration tolerance at 25c (ppm) (20, 30, 50 or 100ppm) load capacitance
|
