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| ECX-306X/306IX SMD TUNING FORK CRYSTAL Housing for the ECX-306X/306IX crystal is made from the same thermoplastic that is industry standard for integrated circuits. This ruggedized molded package is excellent for SMD applications. FEATURES * Low profile * Long term stability * Industry standard footprint * Excellent shock resistance * Excellent environmental characteristics * Tape and Reel (3,000 pcs) * RoHS Compliant w/ Exemption for High Temp Solder PART NUMBERING GUIDE "EXAMPLE" MANUFACTURER ECS - FREQUENCY .327 - LOAD CAPACITANCE 12.5 - PACKAGE TYPE** 17X ** Package Type examples (-17X= ECX-306,X 17IX= ECX-306IX) OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS NOMINAL FREQUENCY LOAD CAPACITANCE DRIVE LEVEL CALIBRATION TOLERANCE EQUIVALENT SERIES RESISTANCE TEMPERATURE COEFFICIENT OPERATING TEMPERATURE RANGE MAX. OPERATING TEMPERATURE RANGE Q FACTOR TURNOVER TEMPERATURE STORAGE TEMPERATURE RANGE INSULATION RESISTANCE SHUNT CAPACITANCE MOTIONAL CAPACITANCE AGING (FIRST YEAR) Fo CL DL @ 25C R1 TOPR Q TO TSTG IR Co C1 f/fo ECX-306/306I 32.768 12.5 Standard (6.0 Optional) 1 max. 20 50 max. -0.040 PPM/C2 max. -10 ~ +60 -40 ~ +85 50,000 min. +25 5 -55 ~ +125 500M min./ DC 100V 1.35 typical 0.003 pF typical 3 PPM max. @ +25C UNITS KHz pF W PPM K PPM/(C) C C C C M pF pF PPM PACKAGE DIMENSIONS (mm) RECOMMENDED OSCILLATION CIRCUIT 8.0 Max. #4 #3 #4 #3 8.7 Max. #4 #3 #4 #3 Rf 3.8 Max. 3.7 Max. Rd #1 5.5 #2 #1 #2 #1 5.5 #2 #1 #2 C1 C2 2.5 Max. 2.5 Max. 0.5 0.5 T (0.9 ypic al) 0.5 0.5 1.15 Figure 1) ECX-306 - Top, Side and End views with pin connections Figure 2) ECX-306I - Top, Side and End views with pin connections ELECTRICAL CHARACTERISTICS IC: TC 4069P Rf: 10M Rd: 330K (As required) C1 = 22pF, C2 = 22pF VDD = 3.0V In this circuit, low drive level with a maximum of 1W is recommended. If excessive drive is applied, irregular oscillation or quartz element fractures may occur. 1.9 PARABOLIC TEMPERATURE CURVE T (C) -20 -10 0 10 20 30 40 50 -10 60 70 1.3 1.9 -20 -30 1.3 4.2 1.3 -40 -50 -60 Figure 3) ECX-306/306I Land Pattern - Top view f/f (PPM) To determine frequency stability, use parabolic curvature. For example: What is the stability at 45C? 1) Change in T (C) = 45 -25 = 20C 2) Change in frequency = -0.04 PPM x (T) 2 = -0.04 PPM x (20) 2 = -16.0 PPM ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 * 913-782-7787 * 800-237-1041 * FAX 913-782-6991 * WWW.ECSXTAL.COM SMD CRYSTALS 12 SMD CRYSTALS |
Price & Availability of ECS-327-125-17X
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