EURO QUARTZ 32.768kHz 3x8mm Crystals Cylindrical 'watch' crystal An industry-standard source of 32.768kHz clock signals Fully RoHs compliant Excellent shock resistance and environmental capability A high build quality component at low cost OUTLINE & DIMENSIONS SPECIFICATION Frequency: Calibration Tolerance at 25ºC: Temperature Coefficient: Peak Temperature: Operating Temperature Range: Storage Temperature: Effective Series Resistance: Shunt Capacitance (C0): Motional Capacitance: Load Capacitance (CL): Ageing: Maximum Drive level: Reflow Soldering: Insulation Resistance: Shock Resistance: 32.7680kHz from ±5ppm to ±50ppm Inverse Parabolic -0.035 ppm/°C2 25°C ±5°C -20 to +70°C -40 to +85° available -55°~+105°C 45kOhms max. 0.8pF typical 4.0fF max. 6pF or12.5pF <±5ppm per year at +25°C 1.0 microW max. 10s maximum at 250°C twice or 180s at 230°C, once. 100MOhm min. ±5ppm max. (Drop test 3 times onto a hard board from 75cm) STOCK NUMBERS/SPECIFICATIONS Stock Number MH32768A MH32768B MH32768M MH32768P Frequency Calibration 32.768kHz 32.768kHz 32.768kHz 32.768kHz ±15ppm ±20ppm ±5ppm ±5ppm CL (pF) 12.5 12.5 12.5 6.0 Frequency Change vs. Temperature X-Cut Crystal 2 Function = f/Fo = -0.035(T - To) ±10% 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