E8WS Series E8WS • RoHS Compliant • 32.768kHz watch crystal • Miniature two pad surface mount package • ±20ppm frequency tolerance • 9.0pF or 12.5pF load capacitance • Tape and reel available H L W 0.8 3.2 1.5 CRYSTAL NOTES __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ELECTRICAL SPECIFICATIONS Frequency 32.768kHz Frequency Tolerance (at 25°C) ±20ppm Frequency Stability -0.04ppm / (Δ°C)2 Maximum, Parabolic; Turn Over Temperature at 25°C ±5°C Operating Temperature Range -40°C to 85°C Aging (at 25°C) ±3ppm / year Maximum Storage Temperature Range -55°C to 125°C Shunt Capacitance 1.0pF Typical, 2pF Maximum Motional Capacitance 3.4fF Typical Equivalent Series Resistance 70,000 Ohms Maximum Insulation Resistance 500 Megaohms Minimum at 100VDC Drive Level 0.5µWatt Maximum Load Capacitance (CL) 12.5pF or 9.0pF MANUFACTURER CATEGORY SERIES PACKAGE CLASS ECLIPTEK CORP. CRYSTAL E8WS CERAMIC CR57 800-ECLIPTEK www.ecliptek.com for latest revision REV.DATE 08/07 Specifications subject to change without notice. PART NUMBERING GUIDE E8WSDC 12 - 32.768K TR PACKAGE OPTIONS Blank=Bulk, TR=Tape and Reel LOAD CAPACITANCE 09=9pF 12=12.5pF MECHANICAL DIMENSIONS SUGGESTED SOLDER PAD LAYOUTS ALL DIMENSIONS IN MILLIMETERS ALL DIMENSIONS IN MILLIMETERS MARKING ORIENTATION 3.2 ±0.1 1.0 (X2) Pad Connections 2 1.8 ±0.1 1.5 1 0.8 ±0.1 1.5 ±0.1 0.8 ±0.1 (X2) 1.8 TAPE AND REEL DIMENSIONS ALL DIMENSIONS IN MILLIMETERS A B C D E 12±.3 5.5±.1 4.75±.1 4 ±.2 2±.1 L TAPE F 4±.1 G A0* H J K 1.5 ±.1 B0* 0.6 MAX PARABOLIC TEMPERATURE CURVE M N O P 1.5 MIN 50 MIN 20.2 MIN 13±.5 40 MIN QTY/REEL 3,000 REEL K0* *Compliant to EIA481A Q R S T U V 2.5 MIN 10 MIN 18.4 MAX 180 MAX 12.4+2-0 MARKING SPECIFICATIONS Line 1: XXXXX Ecliptek Manufacturing Code ENVIRONMENTAL/MECHANICAL SPECIFICATIONS Characteristic Specification Characteristic Specification Fine Leak Test Gross Leak Test Mechanical Shock MIL-STD-883, Method 1014, Condition A MIL-STD-883, Method 1014, Condition C MIL-STD-883, Method 2002, Condition B Resistance to Soldering Heat Solderability Vibration MIL-STD-202, Method 210 MIL-STD-883, Method 2003 MIL-STD-883, Method 2007, Condition A MANUFACTURER CATEGORY SERIES PACKAGE CLASS REV.DATE ECLIPTEK CORP. CRYSTAL E8WS CERAMIC CR57 08/07 800-ECLIPTEK www.ecliptek.com for latest revision Specifications subject to change without notice.