ECX-1210B 32.768 KHz SMD Tuning Fork Crystal The ultra-miniature 4-Pad ECX-1210B is a very compact SMD Tuning Fork Crystal. The 1.2 x 1.0 x 0.35 mm ceramic package is the smallest in its class. This is very popular with small Request a Sample wearables and medical devices. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECX-1210B SMD CRYSTAL PARAMETERS CONDITIONS ECX-1210B UNITS MIN TYP MAX Frequency 32.768 KHz Frequency Tolerance* +25C 20 ppm Load Capacitance Specify in P/N 12.5 pF Drive Level DL 1.0 W Equivalent Series Resistance R1 80K Turnover Temperature +20 +25 +30 C Low Power RTC Applications Temperature Coefficient -0.02 -0.03 -0.04 ppm/C such as STM32 AN2867 Shunt Capacitance Co 1.5 pF 1.2 x 1.0 mm Footprint Extended Temp. Range Aging (First Year) +25C 3C 3 ppm RoHS Compliant Operating Temperature* Topr -40 +105 C Applications: Smartphones, Storage Temperature Tstg -40 +105 C wireless modules, wearable devices * Specify options in part number DIMENSIONS (mm) PAD CONNECTIONS 1 In/Out Figure 1) Top, Side, and Bottom views 2 Ground Figure 2) Suggested Land Pattern 3 Out/In 4 No Connect PART NUMBERING GUIDE: Example ECS-.327-12.5-1210B-CN-TR ECS - FREQUENCY ABBREVIATION LOAD PACKAGE CUSTOM OPTIONS PACKAGING Tolerance Operat ing T e mp CAPACITANCE Blank = 20 ppm .327 = 32.768 KHz 12.5 = 12.5 pF M = -20 ~ +70C TR = Tape ECS -1210B = ECX-1210B * C = 10 ppm N = -40 ~ +85C 9 = 9 pF & Reel P = -40 ~ +105C 7 = 7 pF 5K/Reel 6 = 6 pF * Contact ECS for availability Rev.2020 th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com ECX-1210B 32.768 KHz SMD Tuning Fork 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