JTX 520 Quartz Crystal · JTX520 Surface Mount Tuning Fork Crystal actual size Features ■ RoHS compliant ■ super small package General Data type JTX 520 frequency 32.768 kHz std. / 30.0 ~ 153.6 kHz available frequency tolerance at 25 °C ± 20 ppm load capacitance CL 12.5 pF std. / 7 ~ 12.5 pF available parabolic curvature constant -0.04 x 10 -6 / °C 2 frequency temperature characteristic f (ppm) = -0.04 (25°-T)2 operating temperature range T = requested temperature -20 °C ~ +70 °C / -40 °C ~ +85 °C storage temperature range -40 °C ~ +85 °C shunt capacitance CO 1.3 pF typ. series resistance (ESR) 50 kΩ typ. ( 80 kΩ max.) drive level max. 1.0 µW ± 20% aging max. ± 5 ppm Dimensions 0.8±0.1 1.0 3.8 2.3 1.9±0.2 2.8 0.4 1.0 4.8±0.2 1.5 1.4 temperature (°C) Reflow Soldering Profile 10 ±1 s 250 235 ±5 °C 200 150 ±5 °C 150 100 90 ±30 s 30 ±10 s 50 top view side view pad layout bottom view in mm note: temperatures are measured on PCB surface time (seconds) Order Information Q frequency in MHz type load capacitance in pF stability at 25 °C in ppm Quartz 0.032768 MHz std. 0.030 ~ 0.156 MHz JTX520 12.5 pF std. 7 ~ 12.5 pF ± 20 ppm option T1 = -40 °C ~ +85 °C LF = Pb free contact pins / pads Example: Q 0.032768-JTX520-12.5-20 The pulse of progress Jauch Quartz GmbH • Telephone: (+49) 77 20 / 9 45-0 • Telefax: (+49) 77 20 / 9 45-100 • Internet: www.jauch.de • e-mail: [email protected] · 04/2005