EURO QUARTZ MJ CRYSTALS 5 x 3.2 x 0.9mm SMD 7.0MHz to 125MHz 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, Wirless LAN etc. 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. OUTLINE & DIMENSIONS SPECIFICATION Frequency Range: AT-Cut Fundamental: AT-Cut 3rd Overtone: Calibration Tolerance at 25ºC: 7.0MHz to 50.0MHz 40.0MHz to 125.0MHz from ±5ppm (±10, ±20 or ±30ppm standard) Frequency stability -10° to +60°C from ±5ppm -20° to +70°C from ±10ppm -40° to +85°C from ±15ppm Storage Temperature: -50°~+105°C Effective Series Resistance and Mode 7.0MHz to 50.0MHz: 50Ω max., AT-Cut Fundamental 40.0MHz to 125.0MHz: 80Ω max., AT-Cut 3rd Overtone Operating Temperature Range: from 0° ~ +50°C 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 +25°C Drive level: 100 mW maximum Reflow Soldering: 10s maximum at 260°C twice or 180s at 230°C, once. Package: Ceramic base, metal (Kovar) lid, Hermetic seal Packaging: 12mm EIA tape and reel 1000 pieces per reel PART NUMBER GENERATION Part numbers for MJ crystals are generated as follows: Example: 12.000MHz MJ/20/30/-10+60/18pF/60R Nominal Frequency Package MJ ENVIRONMENTAL SPECIFICATION RoHS Status: Gross Leak: Fine Leak: Shock: Vibration: Solderability: Humidity: Thermal 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 85°C, relative humidity, non-condensing Temperature cycling: Exposed to -40°C for 30 minutes then to +85°C for 30 minutes, - duration 5 days. Calibration Tolerance at 25°C (±ppm) Temperature Stability over temp. range (±ppm) Operating Temp. Range (°C) Load Capacitance Equivalent Series Resistance EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk