rohs e5wsdc07-32.768k e5ws d c 07 -32.768k series rohs compliant 1.5mm x 7mm smd plastic watch crystal frequency tolerance 20ppm at 25c operating temperature range -40c to +85c nominal frequency 32.768khz load capacitance 7pf parallel resonant electrical specifications nominal frequency 32.768khz frequency tolerance 20ppm at 25c frequency stability parabolic -0.035ppm/(change in c)2 maximum aging at 25c 3ppm/year maximum operating temperature range -40c to +85c load capacitance 7pf parallel resonant shunt capacitance (c0) 0.85pf typical, 2pf maximum motional capacitance 1.9ff typical equivalent series resistance 65,000 ohms maximum mode of operation tuning fork, turn over temperature at 25c 5c drive level 1watt maximum storage temperature range -55c to +125c insulation resistance 500 megaohms minimum at 100vdc mechanical dimensions (all dimensions in millimeters) pin connection 1 crystal 2 connected to pin 3 3 connected to pin 2 4 crystal line marking 1 cyxxxxx c=frequency code y=load capacitance xxxxx=lot code (5 digits maximum) www.ecliptek.com | specification subject to change without notice | rev a 8/12/2010 | page 1 of 4 1.50 max 7.00 max 6.7 0.2 marking orient a tion 0.30 0.10 (x4) 0.55 0.10 0.10 0.05 (x4) 1.40 max 0.15 0.05 (x4) 0.20 0.10 (x4) 1 2 3 4 1 4 2 3
e5wsdc07-32.768k 5.1 0.3 0.6 (x4) 1.2 (x4) www.ecliptek.com | specification subject to change without notice | rev a 8/12/2010 | page 2 of 4 all t oler ances are 0.1 sug g ested solder p ad la y out solder land (x4) all dimensions in millimeters
t min s t max s critical zone t to t l p ramp-up ramp-down t l t p t 25 c to peak t preheat s t l t p temperature (t) time (t) recommended solder reflow methods e5wsdc07-32.768k high temperature infrared/convection ts max to tl (ramp-up rate) 3c/second maximum preheat - temperature minimum (ts min) 150c - temperature typical (ts typ) 175c - temperature maximum (ts max) 200c - time (ts min) 60 - 180 seconds ramp-up rate (tl to tp) 3c/second maximum time maintained above: - temperature (tl) 217c - time (tl) 60 - 150 seconds peak temperature (tp) 260c maximum for 10 seconds maximum target peak temperature (tp target) 250c +0/-5c time within 5c of actual peak (tp) 20 - 40 seconds ramp-down rate 6c/second maximum time 25c to peak temperature (t) 8 minutes maximum moisture sensitivity level level 1 additional notes temperatures shown are applied to body of device. www.ecliptek.com | specification subject to change without notice | rev a 8/12/2010 | page 3 of 4
t min s t max s critical zone t to t l p ramp-up ramp-down t l t p t 25 c to peak t preheat s t l t p temperature (t) time (t) recommended solder reflow methods e5wsdc07-32.768k low temperature infrared/convection 245c ts max to tl (ramp-up rate) 5c/second maximum preheat - temperature minimum (ts min) n/a - temperature typical (ts typ) 150c - temperature maximum (ts max) n/a - time (ts min) 30 - 60 seconds ramp-up rate (tl to tp) 5c/second maximum time maintained above: - temperature (tl) 150c - time (tl) 200 seconds maximum peak temperature (tp) 245c maximum target peak temperature (tp target) 245c maximum 2 times / 230c maximum 1 time time within 5c of actual peak (tp) 10 seconds maximum 2 times / 80 seconds maximum 1 time ramp-down rate 5c/second maximum time 25c to peak temperature (t) n/a moisture sensitivity level level 1 additional notes temperatures shown are applied to body of device. low temperature manual soldering 185c maximum for 10 seconds maximum, 2 times maximum. (temperatures shown are applied to device leads only.) high temperature manual soldering 260c maximum for 5 seconds maximum, 2 times maximum. (temperatures shown are applied to device leads only.) www.ecliptek.com | specification subject to change without notice | rev a 8/12/2010 | page 4 of 4
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