E1WS Series E1WS • RoHS Compliant • 32.768kHz watch crystal • Miniature four pad surface mount package • ±20ppm frequency tolerance • 12.5pF load capacitance • Tape and reel available H L W 2.5 8.7 3.7 CRYSTAL NOTES __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ELECTRICAL SPECIFICATIONS Frequency 32.768kHz Frequency Tolerance (at 25°C) ±20ppm Frequency Stability -0.042ppm / (∆°C)2 Maximum, Parabolic; Turn Over Temperature at 25°C ±5°C Operating Temperature Range -10°C to 60°C Aging (at 25°C) ±3ppm / year Maximum Storage Temperature Range -40°C to 85°C Shunt Capacitance 0.85pF Typical, 2pF Maximum Motional Capacitance 2.0fF Typical Equivalent Series Resistance 60,000 Ohms Maximum Insulation Resistance 500 Megaohms Minimum at 100VDC Drive Level 1 µWatt Maximum Load Capacitance (CL) 12.5pF MANUFACTURER CATEGORY SERIES PACKAGE CLASS REV.DATE ECLIPTEK CORP. CRYSTAL E1WS PLASTIC CR47 05/05 800-ECLIPTEK www.ecliptek.com for latest revision Specifications subject to change without notice. PART NUMBERING GUIDE E1WSDA12 - 32.768K TR PACKAGE OPTIONS Blank=Bulk, TR=Tape and Reel NOTES __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ MECHANICAL DIMENSIONS SUGGESTED SOLDER PAD LAYOUTS ALL DIMENSIONS IN MILLIMETERS ALL DIMENSIONS IN MILLIMETERS TAPE AND REEL DIMENSIONS ALL DIMENSIONS IN MILLIMETERS A B C D E 16±.3 7.5±.1 6.75±.1 4 ±.2 2±.1 TAPE REEL M N O P Q 1.5 MIN 50 MIN 20.2 MIN 13±.2 40 MIN QTY/REEL 3,000 F G H J K L R S T U V 8±.2 4.35±.1 1.5 +.2-.1 10.7±.2 .5 ±.05 3.7±.2 2.5 MIN 10 MIN 22.4 MAX 360 MAX 16.4+2-0 PARABOLIC TEMPERATURE CURVE MARKING SPECIFICATIONS Line 1: C2K XXXX Lot Identifier (4 or 5 Characters) Frequency Code MANUFACTURER CATEGORY SERIES PACKAGE CLASS ECLIPTEK CORP. CRYSTAL E1WS PLASTIC CR47 800-ECLIPTEK www.ecliptek.com for latest revision REV.DATE 05/05 Specifications subject to change without notice.