ECX-1637 Low profile 2.0 x 1.6 mm Footprint Extended Temp Range Option RoHS Compliant SMD CRYSTAL The sub miniature ECX-1637 is a very compact SMD Crystal. The 2.0 x 1.6 x 0.45 mm ceramic package is ideal for today's SMD manufacturing environment. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS ECX-1637 CONDITIONS Frequency Range Frequency Tolerance Frequency Stability Shunt Capacitance Load Capacitance Drive Level Operating Temperature Storage Temperature Aging (Per Year) MIN TYP 16.000 UNITS MAX 80.000 ± 50 * ± 50 * 5 at +25°C -20 to +70°C Specify in P/N MHz ppm ppm pF pF µW °C °C ppm 8 100 +70 +85 ±5 -20 -40 @ +25°C ±3°C EQUIVALENT SERIES RESISTANCE/MODE OF OSCILLATION FREQUENCY RANGE (MHz) MODE OF OSC MAX ESR Ω FREQUENCY RANGE (MHz) MODE OF OSC MAX ESR Ω 16.00 ~ 23.999 Fundamental 100 26.000 ~ 39.999 Fundamental 60 24.00 ~ 25.999 Fundamental 80 40.000 ~ 80.000 Fundamental 50 DIMENSIONS (mm) Pad Connections 1 In/Out 2 Gnd 3 Out/In 4 Gnd Figure 1) Top, Side, Bottom, End views and Crystal Connection (Top View) Figure 2) Suggested Land Pattern Custom Options PART NUMBERING GUIDE: Example ECS-240-8-37-TR ECS - Frequency Abbreviation - Load Capacitance - Package 240 = 24.000 MHz See P/N Guide 8 =8 pF S=Series 37 = ECX-1637 Tolerance * Stability Blank = Std A = ± 25 ppm J = ± 20 ppm R = ± 15 ppm C = ± 10 ppm Blank = Std D = ± 100 ppm E = ± 50 ppm G = ± 30 ppm H = ± 25 ppm T = ± 20 ppm W = ± 15 ppm K = ± 10 ppm *Consult Factory for available stability options over extended temp range. 1105 South Ridgeview Road z Olathe, KS 66062 z Phone: 913.782.7787 z Temp Range Blank = Std L = -10 ~ +70°C M = -20 ~ +70°C N = -40 ~ +85°C P = -40 ~ +105°C S = -40 ~ +125°C U = -55 ~ +125°C Fax: 913.782.6991 - Packaging TR= Tape & Reel 1K/Reel Rev. 1/14 z www.ecsxtal.com ECX-1637 SMD CRYSTAL Frequency Abbreviations FREQUENCY MHz CODE 24.000 26.000 27.000 32.000 40.000 240 260 270 320 400 POCKET TAPE DIMENSIONS (mm) Package Data 1105 South Ridgeview Road z Olathe, KS 66062 z Phone: 913.782.7787 Item Description Lid Base Sealing Terminal Metal Ceramic Seam/EB Tungsten (metalized) Plating Gold/Nickel Surface/Under RoHS Compliant (Pb Free) z Fax: 913.782.6991 z www.ecsxtal.com