ECX-39 SMD 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 ECX-39 SMD CRYSTAL PARAMETERS CONDITIONS ECX-39 MIN Frequency Fo Frequency Tolerance Load Capacitance 12.5 Drive Level DL 0.1 Equivalent Series Resistance R1 Shunt Capacitance pF 1.0 μW 70K Ω +25 +30 °C -0.028 -0.034 -0.040 ppm/°C² 1.33 @ +25°C ±3°C pF ±3 ppm Operating Temperature Topr -40 +85 °C Storage Temperature Tstg -55 +125 °C @ 100V DC 500M Insulation Resistance DIMENSIONS (mm) ppm +20 Co Aging (First Year) KHz ± 20 * Specify in P/N Temperature Coefficient MAX 32.768 @ +25°C Turnover Temperature Low Profile 4.9 x 1.8 mm Footprint Extended Temp. Range RoHS Compliant TYP UNITS Ω Figure 1) Top, Side, and Bottom views Figure 2) Suggested Land Pattern PART NUMBERING GUIDE: Example ECS-.327-12.5-39-TR ECS - FREQUENCY ABBREVIATION ECS .327 = 32.768 KHz *Contact ECS for availability LOAD CAPACITANCE PACKAGE 12.5 = 12.5 pF 9 = 9 pF 7 = 7 pF 6 = 6 pF 39 = ECX-39 CUSTOM OPTIONS PACKAGING Tolerance Blank = ±20 ppm * C = ± 10 ppm TR = Tape & Reel 3K/Reel Rev.2017 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com ECX-39 SMD CRYSTAL POCKET TAPE DIMENSIONS (mm) SOLDER PROFILE Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Au Figure 1) Suggested Reflow Profile 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com