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| EURO QUARTZ FEATURES 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, Wirles LAN etc. MJ CRYSTALS 5 x 3.2 x 1.0mm SMD * 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. SPECIFICATION Frequency Range: Mode: Calibration Tolerance at 25C: Frequency stability -10 to +60C -20 to +70C -40 to +90C Storage Temperature: Effective Series Resistance: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Reflow Soldering: Package: Packaging: 10.0MHz to 48.0MHz AT-Cut Fundamental from 5ppm (10, 20 or 30ppm standard) from 5ppm from 10ppm from 15ppm -40~+105C See table 2pF to 4pF typical, 5pF maximum Series or from 10pF to 32pF (Customer specified CL) <3ppm per year at +25C 100 mW maximum 10s maximum at 260C twice or 180s at 230C, once. Ceramic base, metal (Kovar) lid, Hermetic seal 12mm EIA tape and reel 1000 pieces per reel PART NUMBER GENERATION Part numbers for MJ crystals are generated as follows: Example: OUTLINE & DIMENSIONS EQUIVALENT SERIES RESISTANCE (ESR) Frequency Crystal Cut/ ESR Range MHz Mode Ohms Max. 10.0 ~ 12.0 12.0 ~ 16.0 16.01~48.0 AT Fund. AT Fund. AT Fund. 80 60 50 12.000MHz MJ/20/30/-10+60/18pF/60R Nominal Frequency Package ENVIRONMENTAL SPECIFICATION RoHS Status: Gross Leak: Fine Leak: Shock: Compliant 1kg pressurized water immersion test as per Euroquartz procedures. <5x10-8 atm cc/s -helium leak test 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. 5ppm max., frequency 10 to 55Hz, amplitude 1.5mm or 10g rms. Duration 6 hours. MIL-STD-883, Method 2003 48 hours at 85C, relative humidity, non-condensing Temperature cycling: Exposed to -40C for 30 minutes then to +85C for 30 minutes, - duration 5 days. Calibration tolerance at 25C (ppm) Temperature Stability over temp. range (ppm) Operating Temp. Range (C) (Lower and upper limits) Load Capacitance (Either SR for series or CL in pF) Equivalent Series Resistance (Optional - use when special value is required) Vibration: Solderability: Humidity: Thermal Shock: EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk |
Price & Availability of MJ20
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