SM Tuning Fork Crystal Tuning Fork Quartz Crystal The tuning fork crystal provides the circuit designer with the ultimate in size, performance, and economic trade-offs. This highly reliable, stable, and accurate device is available in two micro -miniature sizes for time base applications operating from a 32.768KHz reference frequency. • • • • • WX26B Very small, compact SM packaging Rugged, resistant to shock and vibration Low cost Ideal for time of watches and clocks RoHS Compliant Optional Specifications: Frequency Range: WX26B 30.000 ~ 120.000 KHz 32.768 KHz Operating Temperature: Standard 0°C ~ +50°C -A -10°C ~ +60°C -B -20°C ~ +70°C -C -40°C ~ +85°C -L Storage Temperature: -30°C ~ +80°C Frequency Tolerance: ± 50 ppm - 50 (at 25°C) ± 30 ppm - 30 ± 20 ppm - 20 Temperature Coefficient: -0.034 ± 0.006 ppm/°C2 Circuit Condition: 8 pF ~ 32 pF or series 12.5 pF Turnover Temperature: 25 ± 5 °C Series Resistance: 50 KΩ max. - Standard Please see R table. Drive Level: 1.0 µW max Series Capacitance: 4.0 fF max Parallel Capacitance: 2.0 pF max Aging: ± 3 ppm max per year Optional Features: RoHS Compliant All dimensions are in mm - RC Ordering Information Note: Product name + Temperature Range + CL + Frequency Tolerance + Other Specification Code + Frequency. 1. Other frequencies, tolerances, stabilities, and operating temperature ranges available. Consult VTC Support for specific requirements. 2. Not all combinations of the above tolerances, stabilities, and temperature ranges are available. Consult VTC Support if your requirement is not standard. 3. All specifications subject to change without notice. Phone: +86 (10) 5128-1211 © 2006 by Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 i.e. WX26BC50-32.768KHz Email: [email protected] Web: http://www.vanlong.com W X26B