ECS-.327-7-34B-TR

ECX-31B SMD CRYSTAL The miniature ECX-31B is the most cost effective SMD Tuning Fork Crystal today. The 3.2 x 1.5 x 0.9 mm ceramic package is ideal high density circuit boards. Offerings in extended temperature and frequency tolerance as low at ±10 ppm. Request a Sample OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECX-31B SMD CRYSTAL PARAMETERS CONDITIONS ECX-31B MIN TYP Frequency @ +25°C Temperature Coefficient Low Profile 3.2 x 1.5 mm Footprint Extended Temp. Range RoHS Compliant Low Power RTC Applications such as STM32 AN2867 -0.028 -0.034 KHz ± 20 * ppm -0.040 ppm/°C² Shunt Capacitance Co 1.05 pF Load Capacitance Specify in P/N 12.5 pF Drive Level DL 0.1 Equivalent Series Resistance R1 @ 100V DC Insulation Resistance 1.0 μW 70K Ω 500M +20 Turnover Temperature Ω +25 +30 °C Operating Temperature Topr -40 +85 °C Storage Temperature Tstg -55 +125 °C ±3 ppm Aging (First Year) DIMENSIONS (mm) MAX 32.768 Frequency Tolerance • • • • • UNITS @ +25°C ±3°C PAD CONNECTIONS 1 In/Out 2 Out/In Figure 1) Top, Side, and Bottom views PART NUMBERING GUIDE: Example ECS-.327-12.5-34B-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 -34B = ECX-31B Figure 2) Suggested Land Pattern CUSTOM OPTIONS PACKAGING Tolerance Blank = ±20 ppm * C = ± 10 ppm TR = 3K/Reel TR9 = 9K/Reel Rev.2022 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com ECX-31B 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