ECX-39 Low Profile 4.9 x 1.8 mm Footprint Extended Temp. Range RoHS Compliant SMD TUNING FORK CRYSTAL The miniature ECX-39 is a very compact SMD Tuning Fork Crystal. The 4.9 x 1.8 x 1.0 mm ceramic package is ideal for today's SMD manufacturing environment. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS CONDITIONS Frequency ECX-39 MIN TYP FO Frequency Tolerance, @ +25°C 32.768 Standard Load Capacitance 12.5 Drive Level DL 0.1 Equivalent Series Resistance R1 Turnover Temperature Temperature Coefficient ppm pF 1.0 µW 70K Ω +20 +25 +30 °C -0.028 -0.034 -0.040 ppm/°C² Co First Year Aging UNITS KHz ± 20 Specify in P/N Shunt Capacitance MAX 1.33 pF +25°C ±3°C ±3 ppm Operating Temperature Topr -40 +85 °C Storage Temperature Tstg -55 +125 °C Insulation Resistance @ 100V DC 500M Ω TOP, BOTTOM, SIDE VIEWS & LAND PATTERN PART NUMBERING GUIDE: Example ECS-.327-12.5-39-TR ECS - Frequency Abbreviation - Load Capacitance .327 = 32.768 KHz 1105 South Ridgeview Road z 12.5 = 12.5 pF 9 = 9 pF 7 = 7 pF Olathe, KS 66062 z Package Type -39 = ECX-39 Phone: 913.782.7787 z - Tolerance Blank = Std C= ± 10 ppm Fax: 913.782.6991 z Packaging -TR = Tape & Reel 3K/Reel www.ecsxtal.com