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.
CSM-4AX SMD CRYSTAL
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS
Frequency
Mode of Oscillation
Frequency Tolerance*
Frequency Stability*
Shunt Capacitance
Load Capacitance
Drive Level
Operating Temperature*
Storage Temperature
Aging (First Year)
Fundamental
@ +25°C
-10 ~ +70°C
CONDITIONS
MIN
CSM-4AX
TYP
MAX
UNITS
30.000
± 30
± 50
7
MHz
ppm
ppm
pF
pF
μW
°C
°C
ppm
3.57
Co
Specify in P/N
D
L
T
opr
T
stg
@ +25°C ±3°C
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
-10
-55
10
20
Cost Effective
Low Profile
Industry Standard Footprint
Pb Free/RoHS Compliant
Series
500
+70
+125
±5
DIMENSIONS (mm)
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
20 = 20 pF
S = Series
PACKAGE
Tolerance
28AX = 5.0 mm
28ALX = 4.0 mm
Blank = Std
A = ± 25
ppm
J = ± 20
ppm
R = ± 15
ppm
C = ± 10
ppm
AVAILABLE OPTIONS
Stability
Blank= Std
D= ±100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
T = ± 20 ppm †
W = ±15 ppm †
K = ± 10 ppm †
PACKAGING
Temp Range
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
ECS
200 = 20.000 MHz
See P/N Guide
* Specify available options in P/N.
† Contact ECS for availability over extended temp range.
Rev.2017
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