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CX-2-SM1 Datasheet(PDF) 1 Page - EUROQUARTZ limited

Part No. CX-2-SM1
Description  CX MINIATURE CRYSTALS
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Maker  EUROQUARTZ [EUROQUARTZ limited]
Homepage  http://www.euroquartz.co.uk
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CX-2-SM
9.6MHz to 160MHz
MINIATURE AT-CUT
SMD CRYSTAL
CX-2-SM
9.6MHz to 160MHz
MINIATURE AT-CUT
SMD CRYSTAL
General Description
The miniature CX-2-SM AT-cut crystals in leadless ceramic
packages have been designed for surface-mounting on printed
circuit boards or hybrid circuits. These crystal have a low profile
and a very small footprint. Manufactured by a photo-lithographic
process, the CX-2-SM is a robust crystal that has gained
widespread acceptance in the industry.
Outline
A
BC
H
F
D
E
(TOP)
G
I
3
2
1






Surface-mount - infrared, vapour phase,
wave solder or epoxy mount techniques
Low profile, hermetically sealed package
Available with glass or ceramic lid
High shock and vibration resistance
Custom designs available
Full military environmental testing available
Specification
Dimension
A
6.60
6.99
B
2.39
2.74
C
-
see below
D
0.89
1.14
E
1.50
1.75
F
1.27
1.52
G
2.67
2.92
H
3.94
4.19
I
5.33
5.59
CX-2-SM Package Dimensions
Typical
(mm)
Maximum
(mm)
Dimension
“C”
SM1
1.65
1.91
SM2
1.70
1.96
SM3
1.78
2.03
Glass Lid
(mm max.)
Ceramic Lid
(mm max.)

LR
C
C



12
R
L

CC
Mot ional Resistance
Motional Capacitance
Motional Inductance
Shunt Capacitance
Equivalent Circuit
Frequency Range:
Calibration Tolerance*:
Load Capacitance:
Motional Resistance (R ):
Motional Capacitance (C ):
Quality Factor (Q):
Shunt Capacitance (C ):
Drive Level:
Temperature Stability**:
Ageing, first year:
Shock, survival***:
Vibration, survival:
Operating Temperature:
Storage Temperature:
Process Temperature:
9.6MHz to 160MHz
A ±0.01% (±100ppm)
B ±0.1%
C ±1.0%
20pF (unless other required)
See table
See table
See table
See table
500 W max.
-10° to +70°C from ±10ppm
-40° to +85°C from ±20ppm
-55° to +125°C from ±30ppm
±5ppm max.
3000g 0.3ms, ½ sine
20g rms 10-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
260°C for 20 seconds
Specifications are typical at 25°C unless otherwise indicated.
Frequency stability characteristics follow that of AT-cut, thickness-
shear mode crystals.
*
Closer calibration available, as low as ±5ppm
**
Does not include calibration tolerance
**
A higher shock version is available, refer to data sheet for
the model CX-1HG



m
Frequency
10.0MHz
60
2.8
95
1.4
32MHz
20
7.8
36
2.4
155MHz
50
0.5
41
3.2
CX-2-SM Motional Parameters, Q and C

Motional
Resistance
R( )

9
Motional
Capacitance
C (fF)

Quality
Factor
‘000s
Shunt
Capacitance
C (pF)

Terminal 1 is electrically connected to terminal 3
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
Telephone:
Fax:
Email:
Web:
EUROQUARTZ
CX MINIATURE CRYSTALS
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