ECS-2.0-12.5-14

ECS-31 SERIES LOW FREQUENCY QUARTZ CRYSTALS The ECS-31 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 PART NUMBERING GUIDE “EXAMPLE” MANUFACTURER ECS ECS ECS – – – FREQUENCY .400 .400 2.0 – – – LOAD CAPACITANCE 12.5 12.5 12.5 – – – PACKAGE TYPE* 8 13 14 * Package type examples (8=3x8, 13=2x6, 14=1x5) OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS FREQUENCY RANGE FREQUENCY TOLERANCE FREQUENCY VS. TEMP. CHARAC. TURNOVER TEMPERATURE TEMPERATURE COEFFICIENT O PERATING 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/f o ∆ f/f o Tm ß T OPR TSTG R1 CL C1 C0 τ DL IR ∆ f/f o 3X8 20KHz ~ 40KHz ±30 PPM 2X6 30KHz ~ 150KHz ±30 PPM See Drawing +25˚C typ. 2 -0.034 PPM/˚C typ. -10 ~ +60 -40 ~ +85 30 ~ 50 (max.) 12.5pF typ. (Customer Specified) 1 ~ 4fF typ. 0.8 ~ 1.7pF typ. 425 ~ 800 typ. 1µW max. 500 MΩ min. ±5 PPM max. ±5 PPM max. 1X5 200KHz ±10,000 PPM CONDITIONS KHz @ +25˚C -10˚C ~ +60˚C Varies depending on frequency 10 (max.) ˚C ˚C KΩ pF fF pF µW DC 100V±15 +25˚C ± 3˚C 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 0.45 ø 1.5 Max PARABOLIC TEMPERATURE CURVE T (˚C) -20 -10 0 10 20 30 40 50 -10 -20 -30 -40 60 70 Ø 3.1 Max. ø 0.35 8.2 Max. 10 5.1 Max. 4.3 ø 0.2 -50 -60 Figure 1) ECS-31-8 0.7 Figure 3) ECS-31-14 f/f (PPM) ø 2.1 Max ø 0.26 To determine frequency stability, use parabolic curvature. For example: What is the stability at 45˚C? 1) Change in T (˚C) = 45 -25 = 20˚C 2 2) Change in frequency = -0.04 PPM x (∆T) 2 = -0.04 PPM x (20) = -16.0 PPM 6.2 Max. 10 Figure 2) ECS-31-13 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