mmd monitor/quartztek 30400 esperanza, rancho santa margarita, ca, 92688 phone: (949) 709-5075, fax: (949) 709-3536, www.mmdcomp.com sales@mmdcomp.com revision: wc082812j specifications are subject to change without notice. pg 1 w w c c s s e e r r i i e e s s c c r r y y s s t t a a l l ?? 32.768khz ?? standard cylindrical holders ?? rohs compliant part number guide mechanical details series wc155 wc26 wc38 frequency range 32.768khz 32.768khz 32.768khz frequency tolerance see part number guide see part number guide see part number guide frequency stability -.034(.006)ppm/c 2 (t-to) 2 -.034(.006)ppm/c 2 (t-to) 2 -.034(.006)ppm/c 2 (t-to) 2 turnover temperature (to) +25c 5c +25c 5c +25c 5c operating temp. range -20c to +70c -20c to +70c -20c to +70c storage temp. range -40c to +85c -40c to +85c -40c to +85c aging 3ppm / 1 st year max 3ppm / 1 st year max 3ppm / 1 st year max shunt capacitance 1.00pf typical 1.35pf typical 1.60pf typical equivalent series resistance 40k ohms max 35k ohms max 35k ohms max load capacitance 6pf, 8pf, or12.5pf 6pf, 8pf, or12.5pf 6pf, 8pf, or12.5pf drive level 1uwatt max 1uwatt max 1uwatt max motional capacitance 2.5ff typical 3.0ff typical 3.5ff typical capacitance ratio 400 typical 450 typical 460 typical quality factor 80k typical 70k typical 90k typical 32.768khz please consult with mmd sales department for any other parameters or options. series wc155 wc26 wc38 load capacitance blank = 12.5pf 6 = 6pf 8 = 8pf rohs compliant blank = not compliant f = is compliant frequency tolerance blank = 20 ppm -08 = 8 ppm -10 = 10 ppm
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