15351 west 109 th street | lenexa , ks 66219 | phone: 913.782.7787 | fax: 913.782.6991 | www.ecsxtal.com parameters conditions ec s - 3 3b units min typ max frequency 1 0 .000 54 .000 m hz mode of oscillation fundamental frequency tolerance * ( c ) @ +25c 1 0 ppm frequency stability * (w n ) - 4 0 ~ + 85 c 15 ppm shunt capacitance co 3 pf load capacitance specify in p/n 8 pf drive level d l 2 00 w opr - 4 0 + 85 c storage temperature t stg - 40 + 125 c aging ( first year) @ +25c 3c 1 ppm ecs - frequency abbreviation load capacitance package available option s tolerance stability temp range packaging frequency (mhz) esr max. 1 0 .000 ~ 15 .999 1 0 0 1 6 .000 ~ 1 8 .999 6 0 21 .000 ~ 54.000 4 0 pad connections 1 in/out 2 gnd 3 out/in 4 gnd operating conditions / electrical characteristics the min i ature ec s - 3 3b is a compact smd crystal. the industry standard 3.2 x 2.5 x 0. 8 mm cera mic package is ideal for todays ec s - 33b smd crystal ec s - 3 3b smd crystal ? iot/wearable applications ? smarthome sensors ? btle, wi - fi wireless ? low aging dimensions (mm) part numbering guide: example ecs - 160 - 9 - 33b - czm - tr figure 1) top, side , and bottom crystal is s ymmetrical , pad 1 & 3 are i nterchangeable. chamfer on the bottom pad has no electrical significance. 160 = 16 .00 0 m hz see p/n guide 8 = 8 pf * - 33b = ec s - 33b 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 g = 3 0 ppm h = 25 ppm t = 2 0 ppm ? w = 15 ppm ? k = 10 ppm ? z = 9 ppm? blank= std l = - 10 ~ +70c m = - 20 ~ +70c y = - 30 ~ +85c n = - 40 ~ +85c p = - 40 ~ +105c s = - 40 ~ +125c figure 2 ) suggested land pattern request a sample
15351 west 109 th street | lenexa , ks 66219 | phone: 913.782.7787 | fax: 913.782.6991 | www.ecsxtal.com developed frequencies abbreviation frequency (mhz) 12 0 12 .000 160 16.00 0 1 92 1 9.200 2 00 2 0.000 240 24.000 245.7 24.576 250 25.000 260 26.000 270 27.000 300 30.000 320 32.000 360 36.000 400 40.000 48 0 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 s - 33b s md crystal figure 1 ) suggested reflow profile
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