X X X X ECX-71 Low Profile 7 x 1.5 mm Footprint Extended Temp. Range RoHS Compliant SMD TUNING FORK CRYSTAL The miniature ECX-71 is a very compact SMD Tuning Fork Crystal. The 7 x 1.5 x 1.4 mm plastic package is ideal for today's SMD manufacturing environment. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECX-71 PARAMETERS CONDITIONS Frequency FO Frequency Tolerance @ +25°C Load Capacitance Specify in P/N 12.5 Drive Level DL 0.1 Equivalent Series Resistance R1 MIN TYP UNITS MAX 32.768 KHz ± 20 ppm pF 1.0 μW 65K ȍ Turnover Temperature +20 +25 +30 °C Temperature Coefficient -0.025 -0.035 -0.045 ppm/°C² Shunt Capacitance Co 0.8 First Year Aging +25°C ±3°C Operating Temperature Topr Storage Temperature Tstg Reflow Profile IR Reflow (5 Sec Max) pF ±3 ppm -40 +85 °C -55 +125 °C +260 °C TOP, BOTTOM, SIDE VIEWS & LAND PATTERN Figure 3) Parabolic Temp Curve Figure 2) Bottom View and Suggested Land Figure 1) Top, Side and End View PART NUMBERING GUIDE: Example ECS-.327-12.5-38-TR ECS - Frequency Abbreviation - Load Capacitance .327 = 32.768 KHz 1105 South Ridgeview Road z 12.5 = 12.5 pF 7 = 7 pF Olathe, KS 66062 z Package Type -38 = ECX-71 Phone: 913.782.7787 z - Packaging -TR = Tape & Reel 3K/Reel Fax: 913.782.6991 z www.ecsxtal.com