euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 1460 230000 fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk surface-mount crystals frequency range at-cut fundamental: 12mhz to 50.0mhz at-cut 3rd overtone: 40.0mhz to 100.0mhz calibration tolerance at 25oc*: 10ppm, 20ppm or 30ppm frequency stability over temp**. range -20 to +70c: 5ppm, 10ppm or 30ppm range -30 to +85c: 10ppm storage temperature: -40~+85c shunt capacitance (c0): 2pf to4pf typical, 5pf maximum load capacitance (cl): series or 10pf to 32pf (customer specified cl) ageing: <3ppm per year at +25c drive level: 100 m w max reflow soldering: 10s maximum at 260c two times or 180s at 230c, once. holder: ceramic base, metal lid, hermetic seal packaging: 16mm eia tape and reel 3000 pieces per reel notes: * calibration tolerance of 5ppm at 25c is available ** tighter tolerance, and lower esr parameters are available, check with euroquartz technical sales. ultra miniature size: 6.0mm x 3.5mm x 1.0mm height gold-plated ceramic base with metal seam-welded lid extremely low ageing high shock and vibration resistance ideal for pdas, gps, pcmcia and hand-held equipment mf crystals 6mm x 3.5mm smd features outlines and dimensions general specification description mf crystals are ultra-miniature surface-mount mount crystals. produced with ceramic substrate and hermetically-sealed metal lid the compact size and low mass make this an ideal crystal for high-density applications. frequency (mhz) crystal cut oscillation mode esr (max) (ohms) oscillation mode & esr 12 ~ 16 at fund. 80 16.1 ~ 50 at fund. 40 40 ~ 67 at 3rd ot 70 67.0 ~ 100 at 3rd ot 90 part number generation mf crystal part numbers are derived as follows: example: 16.000mhz mf/ 10/50/10/30pf/atf frequency package - mf calibration tolerance at 25c (in ppm) temperature stability (in ppm) operating temperature range (lower figure of temperature range) circuit condition (cl in pf or series) mode - atf (at-cut, fund.) - at3 (at-cut, 3rd overtone) stockholding and custom parts certain frequencies and specification of mf crystals are stocked by euroquartz. custom frequencies and specifications are readily manufactured to order on short lead times. contact euroquartz sales office for details.
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