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ECS-147.4-20-28A-TR

更新时间： 2024-11-27 22:59:15
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CRYSTAL 14.7456MHZ 20PF SMD

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ECS-147.4-20-28A-TR 数据手册

  
CSM-4A SMD QUARTZ CRYSTAL  
The CSM-4A SMD version of the HC-49US  
FEATURES  
leaded crystal. The CSM-4A has a case height  
of 5 mm maximum in a resistance-weld  
metal package. The CSM-4A is also pin out  
compatible with the EPSON MA-506.  
•
Cost effective  
• Resistance-weld sealing  
• Extended Temp range available  
• Tape & Reel (1,000 pcs)  
PART NUMBERING GUIDE “EXAMPLE”  
MANUFACTURER  
FREQUENCY (4.000 MHz)  
LOAD CAPACITANCE*  
PACKAGE TYPE  
ECS  
–
40  
–
20  
–
28A  
* Load capacitance (xx=xx pF, S=series resonance) Package Type examples (-28A = 5.0 mm max. height, -28AL = 4.0 mm max. height)  
Note: See Product Selection Guide for additional options including tighter tolerances or extended temperature range.  
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS  
PARAMETERS  
CONDITIONS  
MINIMUM  
TYPICAL  
MAXIMUM  
70.000  
±30*  
±50*  
7
UNITS  
MHz  
PPM  
PPM  
pF  
FREQUENCY RANGE  
3.579545  
CALIBRATION TOLERANCE  
FREQUENCY STABILITY ref @25˚C  
SHUNT CAPACITANCE  
LOAD CAPACITANCE  
@ +25˚C  
-10 ~ +70˚C  
CL (Customer Specified)  
DL  
10  
20.0 standard  
Series  
500  
pF  
µW  
DRIVE LEVEL  
OPERATING TEMPERATURE  
STORAGE TEMPERATURE  
AGING CHARACTERISTICS (Per Year)  
T
T
OPR**  
-10  
-30  
+70  
+85  
±5  
˚C  
˚C  
PPM  
STG  
@ +25˚C ± 3˚C per year  
* Tighter specifications are available. **Extended temperature range available.  
EQUIVALENT SERIES RESISTANCE / MODE OF OSCILLATION  
FREQUENCY RANGE (MHz)  
3.579545 ~ 4.999  
5.000 ~ 5.999  
MODE OF OSC  
Fundamental  
Fundamental  
Fundamental  
Fundamental  
MAX ESR Ω  
FREQUENCY RANGE (MHz)  
9.000 ~ 12.000  
MODE OF OSC  
Fundamental  
Fundamental  
Fundamental  
3rd O/T  
MAX ESR Ω  
200  
150  
100  
80  
60  
40  
30  
13.000 ~ 19.999  
20.000 ~ 30.000  
27.000 ~ 80.000  
6.000 ~ 6.999  
7.000 ~ 8.999  
100  
PACKAGE DIMENSIONS (mm)  
12.5 max  
9.0  
4
3
2.2  
2.2  
4
1
3
2
2.0  
REF  
4.85  
max  
3.5  
1
2
Height “H” (max.)  
-28A 5.0 mm  
-28AL  
2.3  
2.3  
4.0 mm  
Figure 2) CSM-4A Internal Connections  
Figure 3) Land Pattern  
H
1.2 ± 0.1  
9.0 ± 0.1  
1.3 ± 0.1  
(X4)  
Figure 1) CSM-4A - Top, Side and End views  
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM  
SMD CRYSTALS 18 SMD CRYSTALS  
1

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