hc-49/u-s miniature quartz crystal unit for microprocessor model hc-49/u-s features ? height 3.5mm, the volume is compact at about one-fourth that of the former product (hc-49/u). ? a resistance weld completely sealed type. ? the frequency stability is good, the reliability is high. ? multiple standard frequencies. ? copes with high density mounting and is optimum for mass production models. dimensions(mm) specifications table 2 standard frequencies outline type hc-49/u-s standard frequency -10 ~+ 70 : operating temp. range overtone order -40 ~+ 85 : storage temp. range frequency tolerance at 25 : over the oper. temp. range equivalent series resistance load capacitance shock vibration ? f/f : 10 10 -6 three drops onto a hard wood board from the height of 20cm three drops onto a hard wood board from the height of 100cm 10~55hz, amplitude 1.5mm, each to 3 directions, 2 hours each ? f/f : 10 10 -6 10~55hz, amplitude 0.7~0.9mm, each to 3 directions, 30 minutes each frequency range main application 3.2 ~ 29mhz : fundamental 29 ~ 60mhz : 3rd o.t. automotive engine control 4 ~20mhz ta b l e 3 -40 ~+ 125 : -40 ~+ 150 : 100 10 -6 200 10 -6 (referred to 25 : ) table 3 table 3 fundamental drive level shunt capacitance 0.3mw max. 7.0pf max. ctv-vtr 3.5 ~ 28mhz table 1 microprocessor 3.2 ~ 60mhz table 2 30 10 -6 30 10 -6 (referred to 25 : ) table 1 table 1 50 10 -6 50 10 -6 (referred to 25 : ) table 2 table 2 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 16 16 16 16 11.5 16 14 16 16 16 16 16 16 16 12 12 12 12 12 12.000 12.288 13.500 14.31818 3.200 3.579545 3.6864 4.000 4.194304 4.433619 4.500 4.9152 6.000 6.144 7.3728 8.000 8.4672 9.8304 10.000 10.240 10.738635 11.000 11.0592 300 150 150 150 120 120 120 100 90 90 90 90 90 90 90 90 90 90 90 70 70 50 50 12 12 12 12 12 12 12 16.000 16.9344 17.734476 20.000 21.47727 24.000 24.576 27.000 29.4912 32.000 33.8688 38.00053 39.3216 40.000 44.2368 44.350 44.550 46.000 48.000 50.000 56.448 60.000 50 50 50 50 50 50 50 50 150 150 150 150 150 150 150 150 150 150 150 150 150 150 frequency ( mhz ) load capacitance ( pf ) frequency ( mhz ) load capacitance ( pf ) equivalent series resistance ( ? max. ) equivalent series resistance ( ? max. ) 3.8max 5.0max 3.5 max. 11.00max 10.3max 20 1 0.43 0.05 4.88 0.2 hc-49/u-s 3.579545 4.433619 14.31818 17.734476 series/16 series/16 series/12 series/12 frequency ( mhz ) load capacitance ( pf ) equivalent series resistance ( ? max. ) 150 120 50 50 4.000 5.000 6.000 8.000 10.000 12.000 16.000 18.000 20.000 12 12 12 12 12 12 12 12 12 200 200 200 120 120 100 100 100 100 frequency ( mhz ) load capacitance ( pf ) equivalent series resistance ( ? max. ) table 1 standard frequencies table 3 standard frequencies
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