17 vt series( vt-150/VT-200) quartz crystal units for watches features compact tubular package. photolithographic process. excellent shock resistance and environmental char- acteristics. applications real time clocks, timers, pagers, cameras, remote- controllers, portable applications standard specifications frequency-temperature curve dimensions 0.2 5.0 max. 5.0 min. (0.45) 1.5 0.2 6.0 max. 5.0 min. (0.6) 2.0 typ. tp=25 ? c k=-0.035ppm/ ? c 2 -20 -10 0 10 20 30 40 50 60 70 ( ? c) 0 -10 -20 -30 -40 -50 -60 (ppm) temperature ? f/f 0 frequency deviation unit: mm unit: mm vt-150 VT-200 item nominal frequency frequency tolerance turnover temperature temperature coefficient load capacitance equivalent series resistance maximum drive level recommended drive level shunt capacitance aging operating temperature range storage temperature range solderability specifications 32.768khz ( 5ppm) 10ppm, 20ppm +25 c 5 c (-3.5 0.8) x 10 -8 / c 2 4.5 to 12.5pf 50k ? max. 1 w 0.1 w 0.86pf typ. 5ppm max. -10 c to +60 c -30 c to +70 c 280 c max. 5sec. max (package 150 c max.) conditions / notes +25 c 3 c, first year leads only symbol fo f/fo tp k c l r 1 dlmax dl c 0 f/fo tope tsto tsol conditions without notice (temperature: +25 c 2 c)
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