ECS-.327-6-34RR-TR

ECX-34RR SMD CRYSTAL The ultra-miniature ECX-34RR is a very compact SMD Tuning Fork Crystal with a Typical ESR of 20K Ω. Low ESR part recommended by STMicroelectronics for the STM32 Microcontrollers. Request a Sample OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS ECX-34R SMD CRYSTAL CONDITIONS ECX-34RR MIN Frequency Fo Frequency Tolerance Load Capacitance KHz ± 20 * ppm Specify in P/N 12.5 Equivalent Series Resistance R1 20K 40K Ω Drive Level DL 0.1 0.5 μW Quality Factor Q Temperature Coefficient pF 20K 30K +20 +25 +30 °C -0.028 -0.034 -0.040 ppm/°C² 1.6 pF Shunt Capacitance Co 1.3 Motional Capacitance C1 3.8 Aging (First Year) DIMENSIONS (mm) MAX 32.768 @ +25°C Turnover Temperature • Low Power RTC Applications such as STM32 AN2867 • 20K Typ ESR • 3.2 x 1.5 mm Footprint • Extended Temp. Range • RoHS Compliant TYP UNITS @ +25°C ±3°C fF ±3 ppm Operating Temperature Topr -40 +85 °C Storage Temperature Tstg -40 +85 °C @ 100V DC 500M Insulation Resistance Figure 1) Top, Side, and Bottom views PAD CONNECTIONS 1 In/Out 2 Out/In Ω Figure 2) Suggested Land Pattern PART NUMBERING GUIDE: Example ECS-.327-12.5-34RR-TR ECS - FREQUENCY ABBREVIATION ECS .327 = 32.768 KHz *Contact ECS for availability LOAD CAPACITANCE PACKAGE 12.5 = 12.5 pF 9 = 9 pF 6 = 6 pF -34RR = ECX-34RR CUSTOM OPTIONS PACKAGING Tolerance Blank = ±20 ppm * C = ± 10 ppm TR = Tape & Reel 3K/Reel Rev.2017 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com ECX-34RR 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