ecm standard surface mount crystal ecm electronics limited, penmaen house, ashington, west sussex, rh20 3jr, uk tel: +44(0 )1903 892810: fax: +44(0)1903 892738. email: ecm@ecmelectronics.co.uk although we have attempted to accurately reflect the products we market. ecm reserve the right without prior notice to discontinue any product or make design changes we believe necessary. issue 1 hc494/smx dimensions in mm parameter hc494/smx frequency range 3.200mhz to 50.000mhz 50.001mhz to 75.000mhz fund 3 rd o/t calibration tolerance @25 0 c +/-50ppm standard other options available specify temperature tolerance +/-50ppm standard other options available specify operating temperature -10 0 c to +60 0 c other options including -40 0 c to +85 0 c available specify storage temp -55 0 c to +125 0 c load capacitance 10pf to or series specify esr 40 w to 200 w frequency dependant shunt capacitance 7.0pf max drive level 1.0mw max ageing +/-3ppm first year low profile fast delivery tape & reel or bulk packaging highly competitive prices for volume users 3.2000mhz to 75.00mhz fast delivery custom options available standard frequencies in mhz. 3.579545 8.192 18.432 3.6864 9.8304 19.6608 4.00 10.00 20.00 4.032 10.752 22.1184 4.096 11.0592 24.00014 4.194304 12.00 24.576 4.433619 12.288 28.224 4.9152 14.31818 29.4912 6.00 14.7456 32.00 6.144 15.36 32.768 7.3728 16.00 35.2512 7.68 16.384 40.32 8.00 16.9344 56.448 a b c d e 12.80 5.00 4.40 3.80 1.00 environmental & mechanical temperature cycle mil-std-883c method 1010.7 shock mil-std-883c method 2002 vibration mil-std-883c method 2007.2 humidity jis c 5021-22 gross leak test mil-std-883c method 1014.9 condition a marking frequency
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