ECX-49 SMD CRYSTAL The ultra-miniature ECX-49 is a very compact SMD Tuning Fork Request a Sample Crystal. The 4.1 x 1.5 x 0.9 mm ceramic package is ideal for Industrail applications. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECX-49 SMD CRYSTAL PARAMETERS CONDITIONS ECX-49 UNITS MIN TYP MAX Frequency 32.768 KHz Frequency Tolerance +25C 20 * ppm Temperature Coefficient -0.028 -0.034 -0.040 ppm/C Shunt Capacitance C0 1.10 pF Load Capacitance Specify in P/N 12.5 pF Drive Level DL 1.0 W Low Profile Equivalent Series Resistance R1 70K 4.1 x 1.5 mm Footprint Turnover Temperature TM +20 +25 +30 C Extended Temp. Range RoHS Compliant Operating Temperature Topr -40 +85 C Low Power RTC Applications Storage Temperature Tstg -55 +125 C such as STM32 AN2867 Aging (First Year) +25C 3C 3 ppm DIMENSIONS (mm) PAD CONNECTIONS 1 In/Out 2 Out/In Figure 2) Suggested Land Pattern Figure 1) Top, Side, and Bottom views PART NUMBERING GUIDE: Example ECS-.327-12.5-49-TR ECS - FREQUENCY ABBREVIATION LOAD PACKAGE CUSTOM OPTIONS PACKAGING Tolerance CAPACITANCE 12.5 = 12.5 pF Blank = 20 ppm ECS TR = Tape .327 = 32.768 KHz -49 = ECX-49 * C = 10 ppm 9 = 9 pF & Reel 7 = 7 pF 3K/Reel 6 = 6pF *Contact ECS for availability Rev.2018 th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com ECX-49 SMD CRYSTAL POCKET TAPE DIMENSIONS (mm) SOLDER PROFILE Peak solder Temp +260C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Au Figure 1) Suggested Reflow Profile th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com