EURO QUARTZ 3x8mm 32.768kHz Crystal 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 25C: 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 25C 5C -40 to +85 -55~+105C 45k max. 0.8pF typical 4.0fF max. 6pF or12.5pF <5ppm per year at +25C 1.0 microW max. 10s maximum at 250C twice or 180s at 230C, once. 100M 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 info@euroquartz.co.uk www.euroquartz.co.uk