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  crystal units for microprocessor (nr-18) 56 crystal units features 8 nr-18 crystal units can provide a great number of standard frequencies and have a wide range of applications. in addition, taping type and gull-wing type are available for automatic mounting. specification technical guidance (nr-18) equivalent series resistance (r 1 ) dimensions shunt capacitance (c 0 ) motional capacitance (c 1 ) 10.10 max 3.70 max ?0.43 20 1 +0.05 ?.03 4.88 0.20 13.46max 4.65 max 11.05 max 200 160 180 120 40 80 100 r1 ( ? ) 140 60 20 0 10 1 freq (mhz) 100 fundamental 3rd overtone 4 8 10 co (pf) 6 2 0 10 1 freq (mhz) 100 3rd overtone fundamental 10 100 c1 (ff) 1 10 1 freq (mhz) 100 3rd overtone fundamental (mm) (max) (typical) (typical) nr-18 frequency range overtone temperature characteristics operating temp. range frequency tolerance equivalent series resistance table 5 (nr-18) table 5 (nr-18) ?0 10 -6 ?0 ~ +60? ?0 10 -6 (at 25?) table 5 (nr-18) measuring circuit: ci meter drive level standard load capacitance fundamental 3rd overtone 50? (1000? max) 500? (1000? max) 16pf series standard load capacitance may vary depending on the frequency.
58 crystal units 3.000 3.072 3.120 3.146024 3.1884 3.200 3.2764 3.2768 3.330 3.4944 3.500 3.515 3.541 3.546894 3.557837 3.575611 3.579545 3.582056 3.600 3.601 3.6864 3.79545 3.840 3.900952 3.932160 3.975 3.9936 4.000 4.032 4.096 4.14 4.194304 4.296503 4.332 4.433619 4.500 4.608 4.78272 4.800 4.9152 5.000 5.0688 5.120 5.185 5.5296 5.700 5.7143 5.760 6.000 6.144 6.176 6.250 6.400 6.5536 7.000 7.15909 7.162109 7.200 7.300 7.3728 7.500 7.600 8.000 8.192 8.388 table 5 standard frequencies and specifications (nr-18) standard frequency (mhz) <3rd overtone> 22.000 60.000 61.250 62.305 67.7376 70.000 71.700 75.875 standard frequency (mhz) <5th overtone> 60.4256 62.3067 65.050 70.000 73.9944 75.000 76.2875 78.4667 79.865 80.550 81.050 81.745 82.285 82.655 84.000 84.672 85.700 86.400 89.750 91.555 94.556 95.325 98.325 98.550 100.000 104.550 105.7342 115.000 118.700 122.912 122.880 130.000 132.000 standard frequency (mhz) 8.388608 8.4672 8.6436 8.775 8.867238 9.000 9.216 9.600 9.800 10.000 10.200~10.500 10.600 10.700~11.000 11.0592 11.880 11.9808 11.98135 12.000 12.2 30.000 *1 all frequencies from 12.2 to 30.0 mhz can be manufactured. *2 all frequencies from 22 to 60 mhz (3rd overtone) can be manufactured. *2 fundamental 3rd overtone 5th overtone 200max 150max 100max 80max 70max 50max 45max 40max 35max 30max 25max 40max 80max 3.0~3.2 3.2~3.5 3.5~4.6 4.6~4.9 4.9~5.1 5.1~5.7 5.7~6.0 6.0~8.0 8.0~9.0 9.0~10.0 10.0~30.0 22.0~76.0 60.0~132.0 overtone standard frequency (mhz) equivalent series resistance ( ? ) *1


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