19 f o x e l e c t r o n i cs 5570 enterprise parkway fort myers, florida 33905 941-693-0099 fax 941-693-1554 http://www.foxonline.com ? 1998 fox electronics actual size the fk is an at-cut tight tolerance smd crystal designed to withstand extreme heat from ir reflow operations. this new compact package is formed before the crystal is inserted which allows for tighter tolerances and stabilities. features ? tight tolerance and stability ? cost effective ? excellent hermeticity ? tape and reel (1,000 pcs. std) operating temperature 0oc ~ +50c -10oc ~ +50c -10oc ~ +60c -10oc ~ +70c -20oc ~ +70c -30oc ~ +80c -40oc ~ +85c ? fk standard specifications parameters frequency range frequency tolerance frequency stability, ref @ 25oc temperature range operating (t opr ) storage (t stg ) shunt capacitance (co) load capacitance (c l ) drive level aging units mhz ppm oc pf pf mw ppm max 90.000 +20 * +90 7.0 series 0.1 +5.0 min 3.579545 -20 * -40 10.0 -5.0 conditions ta = 25oc see below see below customer specified 3.579545 ~ 90.000 mhz ta = 25oc; per year frequency range (mhz) 3.579 ~ 4.000 4.000+ ~ 5.000 5.000+ ~ 6.000 6.000+ ~ 7.000 7.000+ ~ 9.000 operating mode fundamental fundamental fundamental fundamental fundamental oper. mode fundamental fundamental fundamental 3rd ot max esr w 60 40 30 100 frequency range (mhz) 9.000+ ~ 13.000 13.000+ ~ 20.000 20.000+ ~ 30.000 30.000 ~ 90.000 * other tolerances available. consult fox customer service for specific requirements, or use crystal order form on page 6. all specifications subject to change without notice. rev. 6/2/98 tight tolerance thermoplastic encased smd crystal fk inch dimensions shall govern. all dimensions are in inches & parenthetically in millimeters. see page 26 for tape and reel specifications. 15ppm * * * * * * 20ppm * * * * * * * 30ppm * * * * * * * 7.5ppm * * * * 10ppm * * * * * 50ppm * * * * * * * 100ppm * * * * * * * max esr w 200 150 120 100 80 crystal discontinued
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