euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk euro quartz description mj crystals are miniature surface-mount crystals produced with a ceramic substrate and seam-welded metal lid. their compact size and low mass make hem an ideal crystal for high-density applications. miniature size: 5.0mm x 3.2mm x 1.0mm height gold-plated ceramic base with metal seam-welded lid to minimize emi the whole crystal may be grounded high shock and vibration resistance ideal for pdas, gps, pcmcia, wirless lan etc. features outline & dimensions frequency range: at-cut fundamental: 7.0mhz to 50.0mhz at-cut 3rd overtone: 40.0mhz to 125.0mhz calibration tolerance at 25oc: from 5ppm (10, 20 or 30ppm standard) frequency stability -10 to +60c from 5ppm -20 to +70c from 10ppm -40 to +85c from 15ppm storage temperature: -50~+105c effective series resistance and mode 7.0mhz to 50.0mhz: 50 max., at-cut fundamental 40.0mhz to 125.0mhz: 80 max., at-cut 3rd overtone operating temperature range: from 0 ~ +50c to -55 ~ +105 shunt capacitance (c0): 2pf to 4pf typical, 5pf maximum load capacitance (cl): series or from 10pf to 32pf ( ) ageing: <3ppm per year at +25c drive level: 100 m w maximum reflow soldering: 10s maximum at 260c twice or 180s at 230c, once. package: ceramic base, metal (kovar) lid, hermetic seal packaging: 12mm eia tape and reel 1000 pieces per reel specification mj crystals part number generation part numbers for mj crystals are generated as follows: 12.000mhz mj/20/30/-10+60/18pf/60r example: nominal frequency package mj calibration tolerance at 25c (ppm) temperature stability over temp. range (ppm) operating temp. range (c) load capacitance equivalent series resistance rohs status: compliant gross leak: 1kg pressurized water immersion test as per euroquartz procedures. fine leak: <5x10 -8 atm cc/s -helium leak test shock: 5ppm max. free drop 3 times from 75cm height onto a hard wooden board or half sine wave acceleration of 100g peak amplitude for 11 ms duration, 3 cycles each plane. vibration: 5ppm max., frequency 10 to 55hz, amplitude 1.5mm or 10g rms. duration 6 hours. solderability: mil-std-883, method 2003 humidity: 48 hours at 85c, relative humidity, non-condensing thermal shock: temperature cycling: exposed to -40c for 30 minutes then to +85c for 30 minutes, - duration 5 days. environmental specification 5 x 3.2 x 0.9mm smd 7.0mhz to 125mhz
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