15351 west 109 th street | lenexa , ks 66219 | phone: 913.782.7787 | fax: 913.782.6991 | www.ecsxtal.com parameters conditions ec x - 64a units min typ max frequency 8 .000 5 0 .000 m hz mode of oscillation fundamental frequency tolerance * @ +25c 3 0 ppm frequency stability * - 1 0 ~ + 70 c 5 0 ppm shunt capacitance co 7 pf load capacitance specify in p/n 10 20 series pf drive level d l 100 w opr - 1 0 + 70 c storage temperature t stg - 55 + 125 c aging ( first year) @ +25c 3c 5 ppm ecs - frequency abbreviation load capacitance package available option s tolerance stability temp range packaging frequency (mhz) esr max. 8 .000 ~ 15 .999 80 1 6 .000 ~ 1 9 .999 60 20 .000 ~ 50.000 30 pad connections 1 in/out 2 out/in operating conditions / electrical characteristics the ec x - 64a is a miniature smd crystal with a 6 x 3.5 mm 2 pad footprint. this cost effective package with a height of 1.1 mm is ideal for densely populated pcb applications ec x - 64a smd crystal ec x - 64a smd crystal ? compact and low profile ? industry standard footprint ? extended temp . range option ? rohs compliant ? 6 x 3.5 mm (2 pad) dimensions (mm) part numbering guide: example ecs - 20 0 - 20 - 23a - tr figure 1) top, side , and bottom crystal is s ymmetrical , pad 1 & 2 are i nterchangeable. chamfer on the bottom pad has no electrical significance. 20 0 = 20 .000 m hz see p/n guide 20 = 20 pf s = series 23a = ec x - 64a blank = std a = 25 ppm j = 20 ppm r = 15 ppm c = 10 ppm tr = tape & reel 1 k/reel rev. 201 7 ecs * specify available options in p/n. ? contact ecs for availability over extended temp range. blank= std d= 100 ppm e = 50 ppm g = 3 0 ppm h = 25 ppm t = 2 0 ppm ? w = 15 ppm ? k = 10 ppm ? blank= std l = - 10 ~ +70c m = - 20 ~ +70c y = - 30 ~ +85c n = - 40 ~ +85c p = - 40 ~ +105c s = - 40 ~ +125c u = - 55 ~ +125c figure 2 ) suggested land pattern
15351 west 109 th street | lenexa , ks 66219 | phone: 913.782.7787 | fax: 913.782.6991 | www.ecsxtal.com developed frequencies abbreviation frequency (mhz) 080 8.000 098.3 9.8304 100 10.000 110.5 11.0592 120 12.000 122.8 12.2880 135.6 13.560 143 14.31818 147.4 14.7456 160 16.000 184 18.432 196.6 19.6608 200 20.000 221 22.1184 240 24.000 245.7 24.576 250 25.000 270 27.000 286.3 28.63636 330 33.000 400 40.000 480 48.000 solder profile peak solder temp +260c max 10 sec max. 2 cycles max. msl 1, lead finish au pocket tape dimensions (mm) ec x - 64a s md crystal figure 1 ) suggested reflow profile
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