EURO QUARTZ EQ156 CRYSTALS 3.2 x 1.5 x 0.9mm Ultra-miniature 32.768kHz Crystal Frequency 32.7680kHz Ultra-miniature package: 3.2 x 1.5 x 0.75mm Low mass, rugged construction Packaged in standard EIA tape and reel DESCRIPTION OUTLINE & DIMENSIONS EQ156 crystals provide 32.768kHz in an ultra-miniature package. The part is designed to provide the smallest possible component size for real-time clock applications. Their miniature size and rugged construction make them ideal for battery powered, hand-held equipment. SPECIFICATION Nominal Frequency: Calibration Tolerance at 25ºC: Operating Temperature Range: Storae Temperature Range: Load Capacitance (CL): Motional Capacitance (C1): Shunt Capacitance (C0): Equivalent Series Resistance (ESR): Drive level: Temperature Coefficient: Turnover Temperature: Ageing: Insulation Resistance: Crystal Cut: Reflow Soldering: Packaging: 32.7680kHz ±20ppm -40 to +85°C -55 to +125°C 12.5pF or 7.0pF 3.6fF typical 1.0pF typical 70k Ohms 0.5 micro Watt maximum -0.04/°C2 maximum +25°±5°C ±3ppm per year 500 MOhm minimum @100VDC X Cut 10s maximum at 260°C twice or 180s at 230°C, once. EIA tape and reel PART NUMBERS AND SPECIFICATION Frequency (kHz) 32.7680 32.7680 CL (pF) Stock Number 12.5 7.0 PH32768F PH32768G Tolerance (±ppm)/ Temp. Range (°C)/ Max. ESR (Ohms) STABILITY OVER TEMPERATURE X-Cut Crystal 20/-40+85/80k 20/-40+85/80k 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