EURO QUARTZ EQ158 CRYSTAL 2 x 1.2 x 0.6mm Ultra-miniature SMD 32.768kHz Frequency 32.7680kHz and from 32.0 to 77.5kHz Ultra-miniature package: 2.05 x 1.2 x 0.6mm Low mass, rugged construction Packaged in standard EIA tape and reel DESCRIPTION OUTLINE & DIMENSIONS EQ158 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: Storage Temperature Range: Operating Temperature Range: Drive Level: Standard Frequency Tolerance: Turnover temperature: Parabolic Coefficient: Load Capacitance: Motional Resistance (ESR): Motional Capacitance: Shunt Capacitance: Ageing: 32.768kHz -55° to +125°C -40° to +85°C 0.5µW maximum ±30ppm or ±50ppm (Tighter tolerances available) ±25°C±5°C -0.04ppm/°C2 maximum 12.5pF 65kΩ to 90kΩ maximum 2.7fF to 7.0fF, 6.4fF typical 1.3pF typical, from 1.6pF to 0.8pF ±3ppm max. in first year @25°C PART NUMBER AND SPECIFICATION Frequency (kHz) 32.7680 CL (pF) Stock Number 12.5 PH32768V Tolerance (±ppm)/ Temp. Range (°C)/ Max. ESR (Ohms) STABILITY OVER TEMPERATURE X-Cut Crystal 30/-40+85/90k 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