ecx-1637 smd crystal the sub miniature ecx-1637 is a very compact smd crystal. the 2.0 x 1.6 x 0.45 mm ceramic package is ideal for today's smd manufacturing environment. 1105 south ridgeview road z olathe, ks 66062 z phone: 913.782.7787 z fax: 913.782.6991 z www.ecsxtal.com parameters conditions min typ max ecx-1637 pad connections operating conditions / el ectrical characteristics units aging characteristics (per year) operating temperature storage temperature drive level frequency f o frequency tolerance frequency stability (ref @ 25c) shunt capacitance load capacitance equivalent series resistance -20 ~ +70c @ +25c fundamental mode t opr t stg @ +25c 3c 80.000 50 * 50 * 5.0 100 100 +70 +85 5 1 2 3 4 in/out gnd in/out gnd 2 4 .000 -20 -40 8 +25 mhz ppm ppm pf pf ? w c c ppm package dimensions (mm) part numbering guide: example ecs-2 4 0-8-37-tr custom options low profile 2.0 x 1.6 mm footprint extended temp. range option rohs compliant ecs - frequency abbreviation - load - package type - tolerance - stability - temp range - packag ing 2 4 0 = 24 .000 mhz see p/n guide for std frequencies 8 = 8.0 pf s = series -37 = ecx-1637 -tr = tape & reel 1k/ree l 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
ecx-1637 smd crystal 1105 south ridgeview road z olathe, ks 66062 z phone: 913.782.7787 z fax: 913.782.6991 z www.ecsxtal.com frequency mhz package data item description code frequency abbreviations pocket tape dimensions (mm) 24.000 24.576 25.000 26.000 27.000 27.120 29.491 30.000 32.000 34.400 36.000 38.400 40.000 44.000 44.545 48.000 54.000 240 245.76 250 260 270 271.2 294.91 300 320 344 360 384 400 440 445.45 480 540 lid metal ceramic seam/eb tungsten (metalized) compliant (pb free) gold/nickel surface/under base sealing terminal plating rohs
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