ECS-3X8X, 2X6X, 1X5X 32.768 KHz Tuning Fork Crystal ECS tuning fork type crystals are used as a clock source in communication Request a Sample equipment, measuring instruments, microprocessors and other time management applications. Their low power consumption makes these crystals ideal for portable equipment. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECS-3X8X, 2X6X, 1X5X PARAMETERS 3X8X 2X6X 1X5X UNITS Frequency FO 32.768 32.768 32.768 KHz Frequency Tolerance Δf/fo ±20 ±20 ± 20 ppm Load Capacitance C 12.5 12.5 8.0 pF L Drive Level (max) D 1 1 1 μW L Resistance At Series Resonance R1 35(max) 35(max) 40(max) KΩ Q-Factor Q 90,000(typ.) 70,000(typ.) 80,000(typ.) • Cost Effective Turnover Temperature TM +25 ±5 +25 ±5 +25 ±5 °C • Tight Tolerance -0.040ppm/°C2 -0.040ppm/°C2 -0.040ppm/°C2 Temperature Coefficient ß PPM/ΔC° • Long Term Stability max. max. max. • Excellent Resistance and Shunt Capacitance CO 1.60 (typ.) 1.35 (typ.) 1.00 (typ.) pF Environmental Characteristics Capacitance Ratio 460 (typ.) 450 (typ.) 400 (typ.) • Pb Free/RoHS Compliant Operating Temp Topr -10 ~ +60 °C Storage Temperature Tstg -40 ~ +85 °C DIMENSIONS (mm) Drop 3 times on hard wooden board from Shock Resistance PPM height of 75cm / ±5 ppm max. Insulation Resistance IR 500 MΩ min./DC100V MΩ Aging (First Year) Δf/fo ±3 ppm max. @ +25°C ±3°C ppm Motional Capacitance C 0.0035(typ.) 0.0030(typ.) 0.0025(typ.) pF 1 PART NUMBERING GUIDE: Manufacturer Frequency Load Capacitance Package Type* ECS - .327 - 12.5 - 8X ECS - .327 - 12.5 - 13X ECS - .327 - 12.5 - 14X * Package type examples (8X = 3x8, 13X = 2x6, 14X = 1x5) Rev.2017 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com

ECS-3X8X, 2X6X, 1X5X 32.768 KHz Tuning Fork Crystal SOLDER PROFILE Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Sn/Cu Matte Figure 1) Suggested Solder Profile 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com