helping customers innovate, improve & grow search xos > CO-448 CO-448 hcmos, acmos an d fct clock oscillators features: ? 100 khz to 50 mhz frequency range ? sealed ceramic leadless chip carrier ? hcmos/acmos/fct/act compatible ? lowest profile specifications series CO-448: leadless chip carrier frequency 100 khz-50 mhz supply 5 vdc 5% accuracy (maximum error at 25c) CO-448a 50 ppm CO-448c 25 ppm *settability via external capacitor; (<60 mhz only; except 449e < 20 mhz) temperature stability improved accuracy/stability available on some models. for example, for 7 pp m over 0c to +50c and for 10 pp m over 0c to +70c. im p rovement is also available over wider tem p erature ran g es. please contact factory. standard: 0c to +70c: 25 ppm option 1 : -55c to +85c: 50 ppm option 2 : -55c to +125c: 50 ppm option 5 : 0c to +50c: 5 ppm option 6 : 0c to +50c: 10 ppm option 7 : -55c to +125c: 100 ppm *option 9 : -55c to +200c: 300 ppm (option 9: n/a in CO-448 or above 20 mhz in co-440 series) *specified stability includes initial accuracy: do not specify a,b,c,d or e accuracy. aging rate (typical after 30 days) 3 ppm first year 2 ppm/year thereafter top of page screen testing of above models page 1 of 2 vectron products - hcmos, acmos and fct clock oscillators - CO-448 3/11/2009 htt p ://www.vectron.com/ p roducts/xo/CO-448.htm
copyright ? 1997-2009 by vectron international, inc., a dover company . vectron international's terms and conditions . the most recent change to this page occurred 02/11/2009 screen test mil-std-883 method standard options class x class d class b class s stabilization bake (150c) ? x x x class s screen test requirements include 24 hour additional bake-out, 80 hour additional burn-in, thermal shock, pind test and radiographic inspection in addition to class b screening. has major cost impact. seal test (gross and fine) 1014, cond a2 x x x temperature cycling (thermal shock) 1010, cond b x x burn-in, operating 160 hours @125c ? x x acceleration (5000g in y 1 axis) 2001, cond a x top of page CO-448 dimension in inches pinouts pin 4 10 31 37 39 other function +5vdc +5vdc ground ground output n/c top of page page 2 of 2 vectron products - hcmos, acmos and fct clock oscillators - CO-448 3/11/2009 htt p ://www.vectron.com/ p roducts/xo/CO-448.htm
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