E1WSDA12-32.768K TR

E1WS Series REGULATORY COMPLIANCE 2011/65 + 2015/863 191 SVHC ITEM DESCRIPTION Watch Crystal Resonator 3.7mm x 7.9mm x 2.5mm 4 Pad Plastic Surface Mount (SMD) ELECTRICAL SPECIFICATIONS Nominal Frequency 32.768kHz Frequency Tolerance ±20ppm at 25°C Frequency Stability Temperature Coefficient Turn over Temperature -0.034±0.006ppm/(Change in °C)² Maximum Aging at 25°C ±3ppm/year Maximum Operating Temperature Range -40°C to +85°C Load Capacitance Shunt Capacitance 6 pF Parallel Resonant 12.5pF Parallel Resonant 1.35pF Typical Motional Capacitance 3.0fF Typical Equivalent Series Resistance 50,000 Ohms Maximum Mode of Operation Drive Level Fundamental 1µWatt Maximum Crystal Cut Storage Temperature Range Insulation Resistance Tuning Fork -55°C to +125°C Measured at 100Vdc 500 Megaohms Minimum 25°C ±5°C PART NUMBERING GUIDE Revised J: 1/19/2017 Page 2 of 10 www.ecliptek.com E1WS Series MECHANICAL DIMENSIONS SUGGESTED SOLDER PAD LAYOUT PIN CONNECTION 2 No Connect to Pin 3 3 No Connect to Pin 2 4 Crystal 1 Crystal All Tolerances are ±0.1 All Dimensions in Millimeters Revised J: 1/19/2017 Page 3 of 10 www.ecliptek.com E1WS Series TAPE & REEL DIMENSIONS Quantity per Reel: 3000 Units All Dimensions in Millimeters Compliant to EIA-481 Revised J: 1/19/2017 Page 4 of 10 www.ecliptek.com E1WS Series RECOMMENDED SOLDER REFLOW METHOD HIGH TEMPERATURE INFRARED/CONVECTION TS MAX to TL (Ramp-up Rate) 3°C/Second Maximum Preheat - Temperature Minimum (TS MIN) - Temperature Typical (TS TYP) - Temperature Maximum(TS MAX) - Time (tS) 150°C 175°C 200°C 60 - 180 Seconds Ramp-up Rate (TL to TP) Time Maintained Above: - Temperature (TL) - Time (tL) 3°C/Second Maximum Peak Temperature (TP) 260°C Maximum for 10 Seconds Maximum Target Peak Temperature(TP Target) 250°C +0/-5°C Time within 5°C of actual peak (tp) 20 - 40 Seconds Ramp-down Rate 6°C/Second Maximum Time 25°C to Peak Temperature (t) 8 Minutes Maximum Moisture Sensitivity Level Level 1 Additional Notes Temperatures shown are applied to body of device. 217°C 60 - 150 Seconds High Temperature Manual Soldering 260°C Maximum for 5 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to body of device.) Revised J: 1/19/2017 Page 5 of 10 www.ecliptek.com E1WS Series RECOMMENDED SOLDER REFLOW METHOD LOW TEMPERATURE INFRARED/CONVECTION TS MAX to TL (Ramp-up Rate) 5°C/Second Maximum Preheat - Temperature Minimum (Ts MIN) - Temperature Typical (Ts TYP) - Temperature Maximum(Ts MAX) - Time (ts) N/A 150°C N/A 30 - 60 Seconds Ramp-up Rate (TL to TP) Time Maintained Above: - Temperature (TL) - Time (tL) 5°C/Second Maximum Peak Temperature (TP) 245°C Maximum Target Peak Temperature (TP Target) 245°C Maximum 2 Times / 230˚C Maximum 1 Time Time within 5°C of actual peak (tp) 10 Seconds Maximum 2 Times / 80 Seconds Maximum 1 Time Ramp-down Rate 5°C/Second Maximum Time 25°C to Peak Temperature (t) N/A Moisture Sensitivity Level Level 1 Additional Notes Temperatures shown are applied to body of device. 150°C 200 Seconds Maximum Low Temperature Manual Soldering 185°C Maximum for 10 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to body of device.) Revised J: 1/19/2017 Page 6 of 10 www.ecliptek.com