EURO QUARTZ · · · · MS2 CRYSTALS 10.7mm x 4.7mm x 2.0mm SMD 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 The MS2 crystal provides an ideal source of low frequency clock signals (under 10MHz) in a low-profile SMD package height of 2.0mm. The crystal features a glass to metal substrate and resistancewelded 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 at 260°C twice or 180s at 230°C, once. 24mm EIA tape and reel, 1k per. EQUIVALENT SERIES RESISTANCE Frequency Range MHz ESR Ohms 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 Ohms Max. AT-Cut 3rd Overtone 25.0~30.0 30.0~50.0 50.0~70.0 150 100 80 Frequency Range MHz ESR Ohms Max. PART NUMBER GENERATION Part numbers for MS2 crystals are generated as follows: Example: 3.2000MHz MS2 30/30/-10+60/12pF/60R Nominal Frequency BTCut Fundamental 24.0~40.0 40 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