ECS-18-S-1

HC-49U QUARTZ CRYSTAL This product represents our selection of standard resistance weld type quartz crystals. OPTIONS: – extended temperature range – pullability – mylar spacer – vinyl sleeve – third ground lead – radial Tape and Reel (1,000 pcs) FEATURES • Cost effective • Excellent aging • Wide frequency range • Tight tolerances • Excellent reliability • “AT” cut crystal PART NUMBERING GUIDE “EXAMPLE” ECS – FREQUENCY (16.0000 MHz) 160 – LOAD CAPACITANCE* 20 – PACKAGE TYPE 1 * Load capacitance (xx=xx pF, S= series resonance) Note: See Product Selection Guide for additional options. OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS FREQUENCY RANGE FREQUENCY TOLERANCE FREQUENCY STABILITY OPERATING TEMPERATURE STORAGE TEMPERATURE SHUNT CAPACITANCE LOAD CAPACITANCE DRIVE LEVEL AGING (FIRST YEAR) CONDITIONS fo Ref @ +25˚C Ta=-10˚C ~ +70˚C T OPR T STG C0 C L (Customer Specified) 1.800 ~ 3.000MHz, 3.000 ~ 100.000MHz @ +25˚C MINIMUM 1.800 -30 -50 -10 -30 MAXIMUM 100.000 +30 +50 +70 +85 7.0 Series 2.0, 1.0 +5.0 10.0 -5.0 UNITS MHz PPM PPM ˚C ˚C pF pF mW PPM EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION FREQUENCY RANGE (MHz) 1.800 ~ 1.999 2.000 ~ 2.399 2.400 ~ 2.999 3.000 ~ 3.199 3.200 ~ 3.699 3.700 ~ 4.199 4.200 ~ 4.899 4.900 ~ 4.999 MODE Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental MAX ESR Ω 750 500 300 200 120 100 70 55 FREQUENCY RANGE (MHz) 5.000 ~ 5.999 6.000 ~ 7.999 8.000 ~ 9.999 10.000 ~ 12.499 12.500 ~ 15.999 16.000 ~ 25.000 23.000 ~ 100.000 MAX ESR Ω 50 40 35 30 25 20 40 MODE Fundamental Fundamental Fundamental Fundamental Fundamental Fundamental 3rd O/T PACKAGE DIMENSIONS (mm) 11.35 (10.5) Max. 13.46 Max. 11.35 Max. f/f 0 PPM + 30 - 10 4.65 Max. 12.7 Min. - 30 0.43 25 60 TEMP.(˚C) Figure 2) Frequency vs Temperature Curve 4.88 ± 0.020 Figure 1) HC-49U - Side and Bottom views ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM CRYSTALS 6 CRYSTALS