free shipping on orders over 100! all prices are in british pound sterling and include duties. uk.digikey.com freephone: 0-800-587-0991 ? 0-800-904-7786 freefax: 0-800-587-0992 ? 0-800-904-7783 (uk081) 1139 d quartz crystals - 32.768 khz -20 t( c) f/f (ppm) -10 -10 -20 -30 -40 -50 -60 10 0203040506070 parabolic temperature curve to determine frequency stability, use parabolic curvature. for example: what is the stability at 45oc? (1) change in t (oc) = 45 - 25 = 20oc (2) change in frequency = 0.04 ppm x ( t) = 0.04 ppm x (20) = -16.0 ppm ecx-3ta series specifi cations: ? frequency: 32.768khz ? frequency tolerance @ 25c: 20ppm ? equivalent series resistance: 50k max. ? shunt capacitance: 2.0pf typ. ? operating temperature: -40c ~ 85c ? storage temperature: -55c ~ 125c load capacitance digi-key part no. cut tape digi-key part no. tape & reel ecs part no. price each pricing 1 10 100 3,000 12.5pf x488ct-nd .86 .72 .58 x488tr-nd 445.20/m ecs-.327-12.5-24-tr rohs compliant 12.5pf x968ct-nd .86 .72 .58 ecs-.327-12.5-24x-tr cylinder type fig. load capaci- tance equivalent series resistance shunt capacitance (typ.) digi-key part no. price each ecs part no. 1 10 100 1 12.5pf 35k 1.6pf x801-nd .16 .15 .12 ecs-3x8 2 12.5pf 35k 1.35pf x802-nd .16 .15 .12 ecs-.327-12.5-13 3 8.0pf 40k 1.00pf x803-nd 1.39 1.26 1.01 ecs-.327-8-14 rohs compliant 1 12.5pf 35k 1.6pf x1123-nd .16 .15 .12 ecs-3x8x 2 12.5pf 35k 1.35pf x1124-nd .16 .15 .12 ecs-.327-12.5-13x 3 8.0pf 40k 1.00pf x1125-nd .33 .30 .24 ecs-.327-8-14x ecx-306 ecx-306 series specifi cations: ? frequency: 32.768khz ? frequency tolerance @ 25c: 20ppm ? equivalent series resistance: 50k max. ? shunt capacitance: 1.3pf typ. ? drive level: 1w max. ? calibration tolerance: 20 ppm @ 25c ? temperature coeffi cient: -0.040 ppm/c2 max. ? operating temperature: -40c ~ 85c max. ? storage temperature: -55c ~ 125c ? q factor: 50,000 minimum ? turnover temperature: 25c (5c) ? insula- tion resistance: 500m minimum, 100vdc ? motional capacitance: 0.003pf typ. ? aging (fi rst year): 3ppm max. @ 25c load capacitance digi-key part no. cut tape digi-key part no. tape & reel ecs part no. price each pricing 1 10 100 3,000 6.0pf xc746ct-nd .57 .48 .39 xc746tr-nd 296.80/m ecs-.327-6-17-tr 12.5pf xc488ct-nd .57 .48 .39 xc488tr-nd 296.80/m ecs-.327-12.5-17-tr rohs compliant 6.0pf xc1307ct-nd .57 .48 .39 xc1307tr-nd 296.80/m ecs-.327-6-17x-tr 12.5pf xc1195ct-nd .57 .48 .39 xc1195tr-nd 296.80/m ecs-.327-12.5-17x-tr ecx-31 load capacitance digi-key part no. cut tape digi-key part no. tape & reel ecs part no. price each pricing 1 10 100 3,000 rohs compliant 12.5pf xc1085ct-nd 2.37 2.14 1.78 xc1085tr-nd 1184.55/m ecs-.327-12.5-32-tr ecx-3ta quartz crystals - ecs-31 series specifi cations: ? frequency tolerance: 30ppm @ 25c ? temperature coeffi cient: -0.034ppm/c ? operating temperature: -10c ~ 60c ? storage temperature: -40c ~ 85c ? equivalent series resistance (esr): 30k ~ 50k max. ? shunt capacitance: .8pf ~ 1.7pf ? drive level: 1w max. ? insulation resistance: 500m min./dc 100v 15v ? aging (first year): 5ppm max. @25c 3c frequency (khz) load capacitance digi-key part no. price each ecs part no. 1 10 100 500 32.000 12.5pf xc972-nd .44 .40 .32 .28 ecs-.320-12.5-13 40.000 12.5pf xc973-nd .44 .40 .32 .28 ecs-.400-12.5-13 60.000 12.5pf xc974-nd .44 .40 .32 .28 ecs-.600-12.5-13 65.536 12.5pf xc975-nd .44 .40 .32 .28 ecs-.655-12.5-13 75.000 12.5pf xc976-nd .44 .40 .32 .28 ecs-.750-12.5-13 100.000 12.5pf xc977-nd .44 .40 .32 .28 ecs-1.00-12.5-13 125.000 12.5pf xc999-nd .44 .40 .32 .28 ecs-1.25-12.5-13 153.600 12.5pf xc978-nd .44 .40 .32 .28 ecs-1.536-12.5-13 rohs compliant 32.000 12.5pf xc1392-nd .44 .40 .32 .28 ecs-.320-12.5-13x 65.536 12.5pf xc1393-nd .44 .40 .32 .28 ecs-.655-12.5-13x 100.000 12.5pf xc1394-nd .44 .40 .32 .28 ecs-1.00-12.5-13x 153.600 12.5pf xc1395-nd .44 .40 .32 .28 ecs-1.536-12.5-13x 1.4 front view 5.5 2.5 0.5 side view 43 1 bottom view 2 1.9 1.3 1.3 4.2 8.0 max. top view 3.8 43 12 3.2 1.2 top view side view 1.0 max. 0.725 0.725 bottom view 1.07 end view land pattern 1.6 1.0 1.3 1.3 crystal connection front view 1.2 3.88 1.2 1.3 2.4 1.3 #4 #3 #1 7.3 top view 2.0 2.5 4.1 #2 0.4 5.08 side view 0.2 1.8 2.0 #4 #3 #1 bottom view #2 ? 2.1 6.2 10.0 2-? 0.26 0.7 8.2 ?3.1 10 ?.35 1.1 6.2 ?2.1 10 ?.26 .7 fig. 2 5.1 ?1.5 4.3 ?.2 .45 fig. 1 fig. 3 specifi cations: ? frequency: 32.768khz ? frequency tolerance @ 25c: 20ppm ? drive level: 1w ? operating tem- perature: -10c ~ 60c ? storage temperature: -40c ~ 85c
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