csm-7x smd quartz crystal the csm-7x is an excellent choice for the smd versions of the hc-49usx leaded crystal. the csm-7x has a case height of 4.3 mm max in a resistance weld metal package. a package profile of 3.2 mm max is also available. 1105 south ridgeview road z olathe, ks 66062 z phone: 913.782.7787 z fax: 913.782.6991 z www.ecsxtal.com parameters conditions csm-7x min typ frequency range (mhz) frequency range (mhz) mode of osc mode of osc max esr ? max esr ? height "h" max max operating conditions / el ectrical characteristics equivalent series resist ance/mode of oscillation units f o c o specify in p/n standard @ +25c 3c at +25c standard -10 to +70c frequency range operating temperature storage temperature aging (first year) frequency tolerance frequency stability ref @ 25c shunt capacitance load capacitance (cl) drive level 3.57 10 mhz c c pf pf w ppm ppm ppm 3.57 ~ 4.999 5.000 ~ 5.999 6.000 ~ 6.999 7.000 ~ 8.999 9.000 ~ 12.999 13.000 ~ 19.999 20.000 ~ 30.000 26.000 ~ 39.999 40.000 ~ 70.000 70.000 30 50 7 series 500 -10 -55 +70 +125 5 fundamental fundamental fundamental fundamental fundamental fundamental fundamental 3rd overtone 3rd overtone 150 80 70 60 50 40 30 100 80 4.3 mm 3.2 mm -5plx -5px dimensions (mm) figure 1) top, side and bottom views figure 2) suggested land pattern part numbering guide: example ecs-200-20-5px-tr cost effective low profile pb free/rohs compliant tape & reel (1,000 pcs) ecs - frequency abbreviation - load capacitance - package to lerance stability temp range - packaging 5px = 4.3 mm 5plx = 3.2 mm a= 25 ppm c= 10 ppm d= 100 ppm e= 50 ppm g= 30 ppm h= 25 ppm k= 10 ppm l= -10 ~ +70c m= -20 ~ +70c n= -40 ~ +85c p= -40 ~ +105c s= -40 ~ +125c u= -55 ~+125c 200 = 20.000 mhz see p/n guide 20 =20 pf s=series tr= tape & reel 1k/reel 20 custom options
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