CSM-4AX (ECS)
SMD CRYSTAL

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CSM-4AX
SMD CRYSTAL
The CSM-4AX is an excellent choice for a low cost SMD crystal. The CSM-4AX (28AX)
has a case height of 5.0 mm Max. in a resistance weld metal package. Lower profile
package height of 4.0 mm Max. is available with the (28ALX) package.
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CSM-4AX SMD CRYSTAL
Cost Effective
Low Profile
Industry Standard Footprint
Pb Free/RoHS Compliant
DIMENSIONS (mm)
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS
Frequency
CONDITIONS
CSM-4AX
MIN TYP
MAX
3.57 30.000
UNITS
MHz
Mode of Oscillation
Fundamental
Frequency Tolerance*
@ +25°C
± 30 ppm
Frequency Stability*
-10 ~ +70°C
± 50 ppm
Shunt Capacitance
Co
7 pF
Load Capacitance
Specify in P/N 10
20 Series
pF
Drive Level
Operating Temperature*
DL
Topr
-10
500 μW
+70 °C
Storage Temperature
Aging (First Year)
Tstg
@ +25°C ±3°C
-55
+125
±5
°C
ppm
Frequency (MHz)
3.57 ~ 4.999
5.000 ~ 5.999
6.000 ~ 6.999
7.000 ~ 8.999
9.000 ~ 12.999
13.000 ~ 19.999
20.000 ~ 30.000
ESR Ω Max.
200
150
100
80
60
40
30
Figure 1) Top, Side, and End
Figure 2) Suggested land
pattern
PART NUMBERING GUIDE: Example ECS-200-20-28AX-TR
ECS - FREQUENCY ABBREVIATION LOAD
CAPACITANCE
PACKAGE
AVAILABLE OPTIONS
PACKAGING
Tolerance Stability
Temp Range
ECS 200 = 20.000 MHz
See P/N Guide
20 = 20 pF
S = Series
* Specify available options in P/N.
Contact ECS for availability over extended temp range.
28AX = 5.0 mm
28ALX = 4.0 mm
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
Blank= Std
L = -10 ~ +70°C
M = -20 ~ +70°C
Y = -30 ~ +85°C
N = -40 ~ +85°C
P = -40 ~ +105°C
S = -40 ~ +125°C
U = -55 ~ +125°C
TR =
Tape
& Reel
1K/Reel
Rev.2017
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com


CSM-4AX (ECS)
SMD CRYSTAL

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CSM-4AX
SMD CRYSTAL
POCKET TAPE DIMENSIONS (mm)
SOLDER PROFILE
Peak solder Temp +260°C Max 10 sec Max.
2 Cycles Max.
MSL 1, Lead Finish Ag
DEVELOPED FREQUENCIES
Abbreviation Frequency (MHZ)
036 3.6864
040 4.000
060 6.000
073 7.3728
080 8.000
100 10.000
110.5
11.0592
120 12.000
122.8
12.288
143 14.31818
147.4
14.7456
160 16.000
184 18.432
200 20.000
240 24.000
250 25.000
Figure 1) Suggested Reflow Profile
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com




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