ECX-306X SMD CRYSTAL The ECX-306X is a compact SMD Tuning Fork Crystal. The 3.8 x 8.0 x 2.5 mm package is ideal for communications and Request a Sample measuring equipment. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECX-306X SMD CRYSTAL PARAMETERS CONDITIONS ECX-306X UNITS MIN TYP MAX Frequency Fo 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 50K Turnover Temperature +20 +25 +30 C Low Profile 2 Temperature Coefficient -0.028 -0.034 -0.040 ppm/C Long Term Stability Shunt Capacitance Co 1.35 pF Industry Standard Footprint Extended Temp. Range Aging (First Year) +25C 3C 3 ppm RoHS Compliant Operating Temperature Topr -40 +85 C Low Power RTC Applications Storage Temperature Tstg -55 +125 C such as STM32 AN2867 Insulation Resistance 100V DC 500M DIMENSIONS (mm) Figure 2) Suggested Land Pattern Figure 1) Top, Side, and End views PART NUMBERING GUIDE: Example ECS-.327-12.5-17X-TR ECS - FREQUENCY ABBREVIATION LOAD PACKAGE CUSTOM OPTIONS PACKAGING Tolerance CAPACITANCE 12.5 = 12.5 pF Blank (Std) = 20 ppm ECS .327 = 32.768 KHz TR = Tape 17X = ECX-306X * C = 10 ppm 9 = 9 pF & Reel 7 = 7 pF 3K/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-306X SMD CRYSTAL POCKET TAPE DIMENSIONS (mm) SOLDER PROFILE Peak solder Temp +260C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Sn/Ag Figure 1) Suggested Reflow Profile th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com