CX-4SM250MHZCI [STATEK]
Quartz Crystal,;
| 型号： | CX-4SM250MHZCI |
| 厂家： | 
STATEK CORPORATION |
| 描述： | Quartz Crystal, |
| 文件： | 总2页 (文件大小：41K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CX-4-SM CRYSTAL
15 MHz to 50 MHz
Ultra-Miniature, Low Profile
AT-Cut Surface Mount Quartz Crystal
™
Fundamental Mode: 15 MHz - 50 MHz
DESCRIPTION
actual size
side view
STATEK’s ultra-miniature low profile CX-4-SM AT-cut
crystals in leadless ceramic packages are designed for
surface mounting on printed circuit boards or hybrid circuits.
These crystals are low profile and have a very small land
pattern. Maximum process temperature should not exceed
260OC.
FEATURES
PACKAGE DIMENSIONS
Designed for surface mount applications using
infrared, vapor phase, wave solder or epoxy mount
techniques.
D
Low profile (less than 1.2mm) hermetically sealed
ceramic package
TOP
BOTTOM
A
Excellent aging characteristics
Available with glass or ceramic lid
High shock and vibration resistance
Custom designs available
F
E
B
D
Full military testing available
C
Designed and manufactured in the USA
APPLICATIONS
TYP.
MAX.
DIM
A
INCHES
.197
.072
-
mm
INCHES
.210
mm
5.33
2.16
Industrial, Computer & Communications
General purpose clock oscillator
PCMCIA
5.00
1.83
-
B
.085
Fax, Modem and LAN
Smart card
C
see below
D
.038
.020
.025
0.97
0.51
0.64
.048
1.22
PDA and notebook computers
Handheld instrumentation
Cellular
E
-
-
-
-
F
DIM “C”
MAX
SM1
GLASS LID
CERAMIC LID
PCS
Military & Aerospace
Airborne hybrid computer
Military high speed modem
MCM
INCHES
.045
mm
1.14
1.17
1.22
INCHES
mm
1.27
1.30
1.35
.O5O
.051
.053
SM2
.046
SM3
.048
10150 - Rev C
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
TERMINATIONS
SPECIFICATIONS
o
Designation Termination
Specifications are typical at 25 C unless otherwise noted.
Specifications are subject to change without notice.
SM1
SM2
SM3
Gold Plated
Nickel, Solder Plated
16 MHz
Nickel, Solder Plated and Solder Dipped
Motional Resistance R1 (
⍀
)
60
1.5
Motional Capacitance C1 (fF)
Quality Factor Q (k)
PACKAGING
100
0.8
CX-4-SM -Tray Pack (Standard)
Shunt Capacitance C (pF)
o
-16mm tape, 7” or 13” reels (Optional)
Per EIA 481 (see data sheet 10109)
Calibration Tolerance*
A
B
C
+_ 0.01% ( +_ 100ppm)
+_ 0.1%
+_ 1.0%
Load Capacitance
Drive Level
10 pF (Unless specified by customer)
200 W MAX.
EQUIVALENT CIRCUIT
+
Frequency-Temperature
Stability**
-10OC to +70OC from _ 10ppm
C0
+
-40OC to +85OC from _ 35ppm
+
-55OC to +125OC from _ 50ppm
1
L1
C1
R1
2
Aging, first year
5ppm MAX.
Shock, survival***
Vibration, survival
Operating Temperature
3,000g, 0.3 msec, 1/ 2 sine
R Motional Resistance L Motional Inductance
C1 Motional Capacitance C0 Shunt Capacitance
1
1
20g rms, 10-2,000 Hz random
-10OC to +70OC Commercial
-40OC to +85OC Industrial
-55OC to +125OC Military
Storage Temperature
-55OC to +125OC
CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
Max Process Temperature 260OC for 20 sec.
Note: The characteristics of the frequency temperature stability follow
that of AT cut thickness-shear mode.
Rf
+
_
* Tighter tolerances available as low as 5 ppm
** Does not include calibration tolerance
***Higher shock version available
BUFFER
OSC
Freq (f )
SUGGESTED LAND PATTERN
RA
AMPLIFIER
CS
O
.059[1.5]
Contact factory for
design guidelines
.092[2.3]
CG
CD
CX-4
INCHES[mm]
.160[4.0]
HOW TO ORDER CX-4-SM CRYSTALS
CX-4
SM1
32 MHz
(
25ppm
/
25ppm
*Frequency
Stability over Tolerance
Temp. Range
/
50ppm
/
I
)
“S” if special or
custom design.
C=Ceramic Lid
Blank=Glass Lid
SM1
SM2
SM3
Frequency
*Calibration
Tolerance
@25OC
(A)
Total Frequency Temp. Range:
C = Commercial
I = Industrial
M = Military
(B)
S = Specify
(C)
*Other calibration and stability fill in ppm.
10150 - Rev C
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
相关型号：
©2020 ICPDF网 联系我们和版权申明