TERMINATIONS
SPECIFICATIONS
Specifications are typical at 25OC unless otherwise noted. Spe-
cifications are subject to change without notice.
Designation Termination
SM1
Gold Plated (Lead Free)
Fundamental Frequency
32.0 MHz 49.0 MHz
Motional Resistance R (
Ω)
150
50
1
Motional Capacitance C (fF) 0.9
1.1
1
EQUIVALENT CIRCUIT
Quality Factor Q (k)
60
54
Shunt Capacitance C (pF)
0
0.6
0.5
Calibration Tolerance1
Load Capacitance
Drive Level
50 to 30ppm, or tighter as required
9 pF (unless specified otherwise)
100 µW MAX
Frequency-Temperature
Stability1,2
50 ppm to 10 ppm (Commercial)
50 ppm to 20 ppm (Industrial)
100 ppm to 30 ppm (Military)
5 ppm MAX (better than 1 ppm available)
5,000 g, 0.3 ms, 1/2 sine
PACKAGING OPTIONS
Aging, first year
• Tray Pack
Shock, survival
Vibration, survival3
20 g, 10-2,000 Hz swept sine
Operating Temp. Range
-10OC to +70OC (Commercial)
-40OC to +85OC (Industrial)
-55OC to +125OC (Military)
-55OC to +125OC
Storage Temp. Range
Max Process Temperature 260OC for 20 sec.
1. Other tolerances available. Contact factory.
2. Does not include calibration tolerance. The characteristics of the frequency stability over
temperature follow that of the AT thickness-shear mode.
3. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing also available.
HOW TO ORDER CX18 AT CRYSTALS
CX18
S
SM1
—
50.0M
,
50
/
50
/
—
/
I
Blank = Standard
S = Special or
custom
Frequency Calibration Frequency
M = MHz
Tolerance Stability over
@ 250C Temp.Range
Temp. Range:
Blank = Glass Lid
C = Ceramic Lid
SM1 = Gold Plated
(Lead Free)
C = -10OC to +70OC
I
= -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
(in ppm)
(in ppm)
OR
/
—
/
—
100
Total
Frequency
Tolerance
(in ppm)
/
I
Operating Temp. Range:
C = -10OC to +70OC
I
= -40OC to +85OC
M = -55OC to +125OC
S = Customer Specified
10207 Rev A
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
STATEK [ STATEK CORPORATION ]
