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| ECS-31X SERIES LOW FREQUENCY QUARTZ CRYSTALS The ECS-31X Series features the same characteristics as only tuning fork crystals offer. Because of their miniature size they are ideal for portable and communication equipment applications. FEATURES * Miniature size * Cost effective * Long term stability * Excellent shock and vibration characteristics * PbFree/RoHS Compliant PART NUMBERING GUIDE "EXAMPLE" MANUFACTURER ECS ECS ECS - - - FREQUENCY .400 .400 2.0 - - - LOAD CAPACITANCE 12.5 12.5 12.5 - - - PACKAGE TYPE* 8X 13X 14X * Package type examples (8x=3x8, 13x=2x6, 14x=1x5) OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS FREQUENCY RANGE FREQUENCY TOLERANCE FREQUENCY VS. TEMP. CHARAC. TURNOVER TEMPERATURE TEMPERATURE COEFFICIENT OPERATING TEMP. RANGE STORAGE TEMP. RANGE EQUIVALENT SERIES RESISTANCE LOAD CAPACITANCE MOTIONAL CAPACITANCE SHUNT CAPACITANCE CAPACITANCE RATIO DRIVE LEVEL INSULATION RESISTANCE AGING (FIRST YEAR) SHOCK RESISTANCE fo f/fo f/f o 3X8X 20KHz ~ 40KHz 30 PPM Tm TOPR TSTG R1 CL C1 C0 DL IR f/f o 2X6X 1X5X 30KHz ~ 150KHz 200KHz 30 PPM 10,000 PPM See Drawing -10C ~ +60C +25C typ. 2 -0.034 PPM/C typ. -10 ~ +60 -40 ~ +85 30 ~ 50 (max.) 10 (max.) 12.5pF typ. (Customer Specified) 1 ~ 4fF typ. 0.8 ~ 1.7pF typ. 425 ~ 800 typ. 1W max. 500 M min. 5 PPM max. 5 PPM max. CONDITIONS KHz @ +25C Varies depending on frequency C C K pF fF pF W DC 100V15 +25C 3C Conditions will vary depending on frequency Drop test of 3 times on a hard board from 75 cm height or shock test of 3000G x 0.3ms x 1/2 sin wave x 3 directions PACKAGE DIMENSIONS (mm) 1.1 O 3.1 Max. PARABOLIC TEMPERATURE CURVE 0.45 T (C) -20 -10 0 10 20 30 40 50 -10 60 70 o 0.35 o 1.5 Max o 0.2 -20 -30 -40 8.2 Max. Figure 1) ECS-31X-8 0.7 10 5.1 Max. 4.3 -50 -60 Figure 3) ECS-31X-14 f/f (PPM) o 2.1 Max o 0.26 To determine frequency stability, use parabolic curvature. For example: What is the stability at 45C? 1) Change in T (C) = 45 -25 = 20C 6.2 Max. 10 Figure 2) ECS-31X-13 2) Change in frequency = -0.04 PPM x (S 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 CRYSTALS 4 CRYSTALS |
Price & Availability of ECS-400-125-13X
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