CX1SM AT CRYSTAL
8 MHz to 250 MHz
Miniature Surface Mount AT Quartz Crystal
™
Fundamental Mode:
8 MHz - 250 MHz
Third Overtone Mode: 48 MHz - 160 MHz
actual size
DESCRIPTION
STATEK’s miniature CX1SM AT crystals in leadless ceramic
packages are designed for surface mounting on printed
circuit boards or hybrid substrates. Due to its robust design,
this product has gained wide acceptance in the industry.
side view
glass lid
X
XXX
S
ceramic lid
FEATURES
PACKAGE DIMENSIONS
Designed for surface mount applications using
infrared, vapor phase, or epoxy mount techniques
Low profile hermetically sealed ceramic package
Excellent aging characteristics
Available with glass or ceramic lid
High shock and vibration resistance
Custom designs available
Full military testing available
Designed and manufactured in the USA
APPLICATIONS
D
A
TOP
BOTTOM
E
D
B
E
C
Medical
Infusion Pumps
Monitoring Equipment
Industrial, Computer & Communications
Instrumentation
Process Control
Environmental Control
Telemetry
Military & Aerospace
Communications
Satellite Command and Control
Cockpit Electronics
Smart Munitions
Timing Devices (Fuzes)
TYPICAL
DIM
A
B
C
D
E
inches
0.315
0.140
-
0.045
0.060
mm
8.00
3.56
-
1.14
1.52
MAXIMUM
inches
0.330
0.155
0.055
0.070
mm
8.38
3.94
1.40
1.78
see below
THICKNESS (DIM C) MAXIMUM
GLASS LID
inches
SM1
SM2/SM4
SM3/SM5
0.065
0.067
0.070
mm
1.65
1.70
1.78
CERAMIC LID
inches
0.070
0.072
0.075
mm
1.78
1.83
1.90
10107 - Rev B
S
YS
ERT
T
E
M
C
IFIC
T
A
RSG Electronic Components GmbH - Sprendlinger Landstr. 115 - 63069 Offenbach - Germany - www.rsg-electronic.de
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SPECIFICATIONS
TERMINATIONS
Specifications are typical at 25
O
C unless otherwise noted.
Specifications are subject to change without notice.
Fundamental Frequency
10 MHz 32 MHz 155.52 MHz
Motional Resistance R
1
(Ω)
Motional Capacitance C
1
(fF)
Quality Factor Q (k)
Shunt Capacitance C
0
(pF)
Calibration Tolerance
1
Load Capacitance
Drive Level
Frequency-Temperature
Stability
1,3
2
30
5.5
100
2.2
+
_
25
6.2
30
2.3
15
4.0
30
2.3
Designation
SM1
SM2
SM3
SM4
SM5
Termination
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
260
O
C for 20 sec.
Max Process Temperature
100 ppm, or tighter as required
SUGGESTED LAND PATTERN
20 pF for f
≤
50 MHz
10 pF for f > 50 MHz
500
µW
MAX for f
≤
50 MHz
200
µW
MAX for f > 50 MHz
+
_
+
_
0.070 (1.78)
0.160 (4.06)
50 ppm to
+
_
+
_
10 ppm (Commercial)
0.270 (6.86)
inches (mm)
100 ppm to
+
_
100 ppm to
5 ppm MAX
20 ppm (Industrial)
+
_
30 ppm (Military)
Aging, first year
4
Shock, survival
5
Vibration, survival
6
Operating Temp. Range
(better than 1ppm available)
EQUIVALENT CIRCUIT
3,000 g, 0.3 ms, 1/2 sine
20 g, 10-2,000 Hz swept sine
-10
O
C to +70
O
C (Commercial)
-40
O
C to +85
O
C (Industrial)
-55
O
C to +125
O
C (Military)
-55
O
C to +125
O
C
260
O
C for 20 sec.
R
1
Motional Resistance L
1
Motional Inductance
C
1
Motional Capacitance C
0
Shunt Capacitance
C
0
1
L
1
C
1
R
1
2
Storage Temp. Range
Max Process Temperature
1. Other tolerances available. Contact factory.
2. Unless specified otherwise.
3. Does not include calibration tolerance. The characteristics of the frequency stability over
temperature follow that of the AT thickness-shear mode.
4. 5 ppm MAX for frequencies below 40 MHz. For tighter tolerances and higher frequencies
contact factory.
5. Higher shock version available. Refer to data sheet model CX1HGSM AT (10108).
6. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing also available.
PACKAGING OPTIONS
• Tray Pack
• 16mm tape, 7” or 13” reels
Per EIA 481 (see Tape and Reel data sheet 10109)
HOW TO ORDER CX1SM AT CRYSTALS
CX1
“S” if special
or custom
design.
Blank if Std.
S
O.T. = 3
RD
O.T. Mode
Blank = Fundamental
Mode
C
C = Ceramic Lid
Blank = Glass Lid
SM1 – 32.0M
Frequency
M = MHz
,
100
Calibration
Tolerance
@ 25
O
C
(in ppm)
/
100
Frequency
Stability over
Temp. Range
(in ppm)
/
—
/
I
SM1 = Gold Plated (Lead Free)
SM2 = Solder Plated
SM3 = Solder Dipped
SM4 = Solder Plated (Lead Free)
SM5 = Solder Dipped (Lead Free)
OR
—
/
—
/
200
Total
Frequency
Tolerance
(in ppm)
Operating Temp. Range:
C = -10
O
C to +70
O
C
I
= -40
O
C to +85
O
C
M = -55
O
C to +125
O
C
S = Customer Specified
/
I
Operating Temp. Range:
C = -10
O
C to +70
O
C
I
= -40
O
C to +85
O
C
M = -55
O
C to +125
O
C
S = Customer Specified
10107 - Rev B
S
YS
ERT
T
E
M
C
IFIC
T
A
RSG Electronic Components GmbH - Sprendlinger Landstr. 115 - 63069 Offenbach - Germany - www.rsg-electronic.de
01
Pb
N
IO
IS
O
90
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