EURO QUARTZ MT CRYSTALS 3.2 x 2.5 x 0.7mm SMD Frequency range 12MHz to 60MHz, fundamental mode Frequency Range 60MHz to 150MHz, 3rd overtone mode Ultra-small package 3.2mm x 2.5mm x 0.6mm Packaged in standard EIA tape and reel 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 and up to 150MHz in 3rd overtone mode. Their small size and low mass makes these crystals ideal for miniaturized hand-held equipment and similar high-density applications. SPECIFICATION Frequency Range AT-Cut Fundamental: AT-Cut 3rd Overtone: Calibration Tolerance at 25ºC*: Frequency stability* -10° to +60°C -20° to +70°C -30° to +85°C Storage Temperature: Equivalent Series Resistance: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Reflow Soldering: Packaging: OUTLINE & DIMENSIONS 12.0MHz to 60.0MHz 60.0MHz to 150MHz ±10ppm, ±20ppm, ±30ppm from ±5ppm from ±10ppm from ±10ppm -40°~+85°C See table 2pF to 4pF typical, 5pF maximum Series or from 10pF to 32pF (12pF standard) <±3ppm per year at +25°C 100 microW maximum 10s maximum at 260°C twice or 180s at 230°C, once. 16mm EIA tape and reel PART NUMBER GENERATION *Note: Tighter stability, tolerance and lower ESR values are available. Part numbers for MT crystals are generated as follows: STANDARD PART NUMBERS AND SPECIFICATIONS Example: Frequency (MHz) 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 CL (pF) Euroquartz Part Number 12 12 12 12 12 12 12 12 12 12 12 12 12 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 Tolerance (±ppm)/ Stability (±ppm)/ Temp. Range (°C)/ Max. ESR (Ohms) 30/50/-20+70/100R 30/50/-20+70/100R 30/50/-20+70/100R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 30/50/-20+70/50R 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 (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: [email protected] www.euroquartz.co.uk