EURO QUARTZ MT CRYSTALS 3.2 x 2.5 x 0.7mm SMD 12.0MHz to 60MHz FEATURES Frequency range 12MHz to 60MHz, fundamental mode Ultra-small package 3.2mm x 2.5mm x 0.6mm Entire package may be grounded via metal lid and two pads Packaged in standard EIA tape and reel Extremely low ageing with high shock and vibration resistance Ideal for PDAs, hand-held GPS, PCMCIA etc. DESCRIPTION MT crystals are ultra-miniature AT-cut crystals covering the frequency range 12MHz to 60MHz in fundamental mode. Their small size and low mass makes these crystals ideal for miniaturized hand-held equipment and similar high-density applications. SPECIFICATION Frequency Range: Operating Mode: Calibration Tolerance at 25ºC*: Frequency stability* -10° to +60°C -20° to +70°C -40° to +85°C Operating Temperature Range: Storage Temperature: Equivalent Series Resistance* 12.000MHz to 20.000MHz: 20.001MHz to 60.000MHz: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Reflow Soldering: Packaging: OUTLINE & DIMENSIONS 12.0MHz to 60.0MHz AT-Cut Fundamental: from ±5ppm (±10, ±20 or ±30ppm standard) from ±5ppm from ±10ppm from ±15ppm From 0° ~ +50°C to -40° ~+85°C -50°~+105°C 100Ω maximum 60Ω maximum 2pF to 4pF typical, 5pF maximum Series or from 8pF to 32pF (Customer specified CL) <±3ppm per year at +25°C 10µW typical, 100µW maximum 10s maximum at 260°C twice or 180s at 230°C, once. 12mm EIA tape and reel *Note: Tighter stability, tolerance and lower ESR values are available. PART NUMBER GENERATION Part numbers for MT crystals are generated as follows: STANDARD PART NUMBERS AND SPECIFICATIONS Frequency CL (MHz) (pF) 16.0000 16.3840 20.0000 20.5720 20.9450 24.5500 24.5760 29.4912 32.0000 32.7680 40.0000 48.0000 50.0000 12 12 12 12 12 12 12 12 12 12 12 12 12 Euroquartz Part Number Tolerance (±ppm)/ Stability (±ppm)/ Temp. Range (°C)/ Max. ESR (Ohms) MT-16000-12 MT-16384-12 MT-20000-12 MT-20572-12 MT-20945-12 MT-24550-12 MT-24576-12 MT-29491-12 MT-32000-12 MT-32768-12 MT-40000-12 MT-48000-12 MT-50000-12 30/50/-20+70/100R 30/50/-20+70/100R 30/50/-20+70/100R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R 30/50/-20+70/60R Example: 16.000MHz MT/10/10/-10+60/12pF/80R Nominal Frequency Package Calibration tolerance at 25°C (±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) 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