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3.5X6 mm Low Profile SMD Crystal Frequency Range: Calibration Tolerance: Frequency Stability: Temperature Range: Storage: Shunt Capacitance: Drive Level: Aging: ESR: Packaging: 12MHz to 45MHz (fund) 10ppm to 50ppm ee 10ppm to 100ppm Fr ad HS t Le o an -20C to 70C R pli m -40C to 85C Co 5.0pF Max 50uW Typical, 300uW Max 3ppm Max 1st/yr see table 1 1K Tape and Reel ** Custom Designs Available
CSX2 Model
Quartz Crystal
Designed to meet the precision and space requirements needed for wireless applications.
RECOMMENDED REFLOW SOLDERING PROFILE TEMPERATURE
260C 217C 200C 150C
Ramp-Up 3C/Sec Max. Critical Temperature Zone Ramp-Down 6C/Sec.
Preheat 180 Secs. Max. 8 Minutes Max.
90 Secs. Max.
Aging:
0.2360.008 (6.00.20)
<3ppm 1st/yr Max
260C for 10 Secs. Max. NOTE: Reflow Profile with 240C peak also acceptable.
CRYSTEK 20M DC
0.1370.008 (3.50.20) 0.0390.008 (1.00.20) 0.1000.005 (2.400.20)
Bottom View
1 4 2 3
Suggested Pad Layout
0.189 (4.8) 0.035 (0.9) 0.055 (1.4) 0.071 (1.8) 0.094 (2.40)
Top View
4 1 3 2
0.1180.003 (3.00.10)
0.055 (1.4)
Dimensions inches (mm) All dimensions are Max unless otherwise specified.
Build Your Own P/N
CSX2-XX-XX-Freq
Frequency Stability over Temp Range
A B C D 10 ppm 25 ppm 50 ppm 100 ppm (-20 to 70C) (-20 to 70C) (-20 to 70C) (-20 to 70C)
Frequency Tolerance at 25C
A 10 ppm B 25 ppm C 50 ppm
Load Capacitance
S= 12= 14= 16= 18= 20= 22= 25= 32= Series 12 pF 14 pF 16 pF 18 pF 20 pF 22 pF 25 pF 32 pF
Example:
CSX2-AB-18-44.736 = 10ppm at 25C, 25ppm -20 to 70C, 18pF Load Cap, Fund, 44.736MHz PIN 1 2 3 4 Signal Crystal GND Crystal GND
Resistance at series resonance Freq. (MHz) 12.0 - 20.0 (F) 20.1 - 45.0 (F) Table 1 Max ESR 50 40
Specifications subject to change without notice.
TD-021010 Rev.G

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