HIGH TEMPERATURE CRYSTALS
High Temperature/High Shock/High Frequency
DESCRIPTION
An increasing number of applications require the use of
high-temperature crystals. For these applications, Statek
offers the CX1HT, CX4HT, and CX9HT crystals. These
crystals are designed to operate at temperatures up to and
including 225ºC. The frequency range offered is 6 MHz to
250 MHz for CX1HT and 14 MHz to 250 MHz for CX4HT
and CX9HT crystals. The expected life at 200ºC is in
excess of 1,000 hours.
CX1HT
6 MHz - 250 MHz
CX4HT
14 MHz - 250 MHz
CX9HT
14 MHz - 250 MHz
FEATURES
High temperature operation up to 225
O
C
High shock resistance
Hermetically sealed ceramic package
DIMENSIONS
CX1HT
MAXIMUM
APPLICATIONS
DIM
A
B
C
(SM1)
C
(SM5)
D
E
F
PACKAGE DIMENSIONS
CX1HT
CX4HT
inches
0.330
0.155
0.070
0.075
0.055
0.070
0.070
mm
8.38
3.94
1.78
1.90
1.40
1.78
1.78
CX4HT
MAXIMUM
inches
0.210
0.085
0.050
0.053
0.046
0.020
0.025
mm
5.33
2.16
1.27
1.35
1.16
0.51
0.64
CX9HT
MAXIMUM
inches
0.170
0.068
0.038
0.040
0.038
mm
4.32
1.73
0.97
1.02
0.97
Industrial
Downhole instrumentation
Rotary shaft sensors
Underground boring tools
CX9HT
SUGGESTED LAND PATTERN
CX1HT
CX4HT
CX9HT
10184 Rev F
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25
O
C unless otherwise noted.
Specifications are subject to change without notice.
Frequency Range
Calibration Tolerance
1
See Specifications Table below
± 100 ppm, or tighter, as required
Storage Temperature
Maximum Process Temperature
-55
O
C to 125
O
C
260
O
C for 20 seconds
Operating Temperature Range -55
O
C up to +225
O
C
Frequency-Temperature
Stability
2
+
_
+
_
PACKAGING OPTIONS
O
125 ppm for -55 C to +150 C
O
• Tray Pack
• 16 mm tape, 7” or 13” reels
Per EIA 481 (see Tape and Reel data sheet # 10109)
150 ppm for -55
O
C to +175
O
C
+
_
175 ppm for -55
O
C to +200
O
C
+
_
250 ppm for -55
O
C to +225
O
C
+
_
Total Tolerance
3
200 ppm for +25 C to +200 C
+
_
300 ppm for +25
O
C to +225
O
C
5 ppm at 25
O
C
CX1HT: 1,000 g, 1 ms,
1
/
2
sine
CX4HT: 5,000 g, 0.3 ms,
1
/
2
sine
CX9HT: 5,000 g, 0.3 ms,
1
/
2
sine
20 g RMS, 10-2,000 Hz
O
O
CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
Aging, first year
Shock, survival
4
Vibration, survival
4
1. Tighter frequency calibration available. Contact factory.
2. Does not include calibration tolerance. The characteristics of the frequency stability over
temperature follow that of the thickness-shear mode.
3. Includes calibration tolerance.
4. Higher shock and vibration available.
SPECIFICATIONS TABLE
1
(Specifications shown are typical unless otherwise noted.)
Frequency Motional Resistance
Range
R1 @ 25°C
6 MHz to
CX1HT
250 MHz
30
Ω
@ 10 MHz
25
Ω
@ 32 MHz
30
Ω
@ 32 MHz
Motional Capacitance Shunt Capacitance
C1 @ 25°C
C0 @ 25°C
5.5 fF @ 10 MHz
6.2 fF @ 32 MHz
1.5 fF @ 16 MHz
2.5 fF @ 32 MHz
1.8 fF @ 25 MHz
2.1 fF @ 49 MHz
2.2 pF @ 10 MHz
2.3 pF @ 32 MHz
0.9 pF @ 16 MHz
1.1 pF @ 32 MHz
1.0 pF @ 25 MHz
1.0 pF @ 49 MHz
Quality Factor
Q @ 25°C
100 K @ 10 MHz
30 K @ 32 MHz
90 K @ 16 MHz
70 K @ 32 MHz
120K @ 25 MHz
60 K @ 49 MHz
10 pF
10 pF
10 pF
Load Capacitance
CL Load
Drive Level
500 µW MAX. for f < 50 MHz
200 µW MAX. for f > 50 MHz
200 µW MAX. for f < 50 MHz
100 µW MAX. for f > 50 MHz
200 µW MAX. for f < 50 MHz
100 µW MAX. for f > 50 MHz
14 MHz to 75
Ω
@ 16 MHz
CX4HT
250 MHz
14 MHz to 30
Ω
@ 25 MHz
CX9HT
250 MHz
30
Ω
@ 49 MHz
1. For more detailed specifications on high frequency crystals, refer to standard high frequency crystal datasheets (CX1SM, CX4SM and CX9SM.)
HOW TO ORDER CX1HT, CX4HT and CX9HT CRYSTALS
CX4HT
CX1HT
CX4HT
CX9HT
S
“S” if special or
custom design.
Blank if Std.
HG
HG = High
Shock
otherwise
leave blank
C
C = Ceramic
Lid
SM1
Terminations*
SM1 = Gold Plated
SM4 = Solder Plated
(Lead Free)
SM5 = Solder Dipped
(Lead Free)
20.0M
Frequency
M = MHz
,
Calibration
Tolerance
@ 25
0
C
(in ppm)
/
Frequency
Stability over
Temp. Range
(in ppm)
/
200
Total Frequency
Tolerance (in
ppm)
/
H
Temp. Range:
H = 25
0
C to 200
0
C
S = Customer
Specified Temp.
Range
OR
100
Calibration
Tolerance
@ 25
0
C
(in ppm)
/
175
/
Total
Frequency
Tolerance
(in ppm)
/
H
Temp. Range:
H = 25
0
C to
200
0
C
S = Customer
Specified Temp.
Range
10184 Rev F
Frequency
Stability over
Temp. Range
(in ppm)
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
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