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