STATEK CX1HT

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.
CX4HT
CX9HT
14 MHz - 250 MHz
14 MHz - 250 MHz
CX1HT
6 MHz - 250 MHz
FEATURES
High temperature operation up to 225OC
High shock resistance
Hermetically sealed ceramic package
DIMENSIONS
CX1HT
MAXIMUM
APPLICATIONS
Industrial
CX4HT
MAXIMUM
CX9HT
MAXIMUM
DIM
inches
mm
inches
mm
inches
mm
A
0.330
8.38
0.210
5.33
0.170
4.32
B
0.155
3.94
0.085
2.16
0.068
1.73
Downhole instrumentation
C (SM1)
0.070
1.78
0.050
1.27
0.038
0.97
Rotary shaft sensors
C (SM5)
0.075
1.90
0.053
1.35
0.040
1.02
Underground boring tools
D
0.055
1.40
0.046
1.16
0.038
0.97
E
0.070
1.78
0.020
0.51
F
0.070
1.78
0.025
0.64
PACKAGE DIMENSIONS
CX1HT
CX4HT
CX9HT
CX4HT
CX9HT
SUGGESTED LAND PATTERN
CX1HT
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 25OC unless otherwise noted.
Specifications are subject to change without notice.
Storage Temperature
Maximum Process Temperature
Frequency Range
-55OC to 125OC
260OC for 20 seconds
See Specifications Table below
1
± 100 ppm, or tighter, as required
Calibration Tolerance
PACKAGING OPTIONS
Operating Temperature Range -55OC up to +225OC
+
_
Frequency-Temperature
Stability2
• Tray Pack
• 16 mm tape, 7” or 13” reels
125 ppm for -55OC to +150OC
+
_
150 ppm for -55OC to +175OC
+
_ 175 ppm for -55OC to +200OC
+
_
250 ppm for -55OC to +225OC
Per EIA 481 (see Tape and Reel data sheet # 10109)
CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
+
_
Total Tolerance3
200 ppm for +25OC to +200OC
+
_
300 ppm for +25OC to +225OC
Aging, first year
5 ppm at 25OC
Shock, survival4
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
Vibration, survival4
20 g RMS, 10-2,000 Hz
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 TABLE1 (Specifications shown are typical unless otherwise noted.)
Frequency Motional Resistance
Range
R1 @ 25°C
Motional Capacitance Shunt Capacitance
C1 @ 25°C
C0 @ 25°C
Quality Factor
Q @ 25°C
6 MHz to
30 Ω @ 10 MHz
5.5 fF @ 10 MHz
2.2 pF @ 10 MHz
100 K @ 10 MHz
CX1HT
250 MHz
25 Ω @ 32 MHz
6.2 fF @ 32 MHz
2.3 pF @ 32 MHz
30 K @ 32 MHz
14 MHz to 75 Ω @ 16 MHz
1.5 fF @ 16 MHz
0.9 pF @ 16 MHz
90 K @ 16 MHz
CX4HT
250 MHz
30 Ω @ 32 MHz
2.5 fF @ 32 MHz
1.1 pF @ 32 MHz
70 K @ 32 MHz
14 MHz to 30 Ω @ 25 MHz
1.8 fF @ 25 MHz
1.0 pF @ 25 MHz
120K @ 25 MHz
CX9HT
250 MHz
30 Ω @ 49 MHz
2.1 fF @ 49 MHz
1.0 pF @ 49 MHz
60 K @ 49 MHz
Load Capacitance
CL Load
Drive Level
10 pF
200 µW MAX. for f > 50 MHz
10 pF
100 µW MAX. for f > 50 MHz
10 pF
100 µW MAX. for f > 50 MHz
500 µW MAX. for f < 50 MHz
200 µW MAX. for f < 50 MHz
200 µW MAX. for f < 50 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
S
HG
C
CX1HT
CX4HT
CX9HT
“S” if special or
custom design.
Blank if Std.
HG = High
Shock
otherwise
leave blank
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
@ 250C
(in ppm)
/
Frequency
Stability over
Temp. Range
(in ppm)
200
/
Total Frequency
Tolerance (in
ppm)
H
Temp. Range:
H = 250C to 2000C
S = Customer
Specified Temp.
Range
OR
100
Calibration
Tolerance
@ 250C
(in ppm)
/
175
Frequency
Stability over
Temp. Range
(in ppm)
/
/
Total
Frequency
Tolerance
(in ppm)
H
Temp. Range:
H = 250C to
2000C
S = Customer
Specified Temp.
Range
10184 Rev F
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com