EURO QUARTZ MS2 CRYSTALS 10.7 x 4.7 x 2.0mm SMD · 3.2MHz to 70MHz Low height SMD package for low frequencies Frequency range 3.2MHz to 70.0MHZ Fully RoHS compliant Standard EIA tape and reel DESCRIPTION OUTLINE & DIMENSIONS MS2 crystals provides low frequency clock signals, from 3.2MHz, in a low-profile SMD package with a height of 2.0mm. The construction comprises of a glass to metal substrate and resistance-welded metal lid offering enhanced hermetic properties. Premium grade AT-strip crystal plate is mounted at both ends for high shock and low g sensitivity. SPECIFICATION Frequency Range AT-Cut Fundamental: AT-Cut 3rd Overtone: BT-Cut Fundamental: Calibration Tolerance at 25ºC*: Frequency stability AT-Cut: BT-Cut: Storage Temperature: Equivalent Series Resistance: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Reflow Soldering: Packaging: 3.2MHz to 30.0MHz 27.0MHz to 70.0MHz 24.0MHz to 48.0MHz from ±10ppm at 25°C (±30ppm standard) ±30ppm over-10° to +60°C ±100ppm over -10° to +60°C -40°~+85°C See table 7pF maximum Series or from 10pF to 32pF (Customer specified CL) <±5ppm per year at +25°C 0.5mW maximum 10s maximum, 260°C twice or 180s at 230°C, once. 24mm EIA tape and reel, 1k per. EQUIVALENT SERIES RESISTANCE Frequency Range MHz ESR Max. AT-Cut Fundamental 3.2~3.4 3.5~4.0 4.1~4.9 5.0~5.9 6.0~8.9 9.0~9.9 10.0~12.9 13.0~30.0 300 150 120 100 80 60 50 45 Frequency Range MHz ESR Max. AT-Cut 3rd Overtone 25.0~30.0 30.0~50.0 50.0~70.0 150 100 80 Frequency Range MHz ESR Max. BT-Cut Fundamental 24.0~40.0 40 PART NUMBER GENERATION Part numbers for MS2 crystals are generated as follows: Example: 3.2000MHz MS2/30/50/-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