CX-3H-SM1FREQ4(A/M) [EUROQUARTZ]
Parallel - Fundamental Quartz Crystal, 0.17MHz Min, 0.2499MHz Max, HERMETIC, MINIATURE, CERAMIC, SMD, 2 PIN;
| 型号： | CX-3H-SM1FREQ4(A/M) |
| 厂家： | 
EUROQUARTZ LIMITED |
| 描述： | Parallel - Fundamental Quartz Crystal, 0.17MHz Min, 0.2499MHz Max, HERMETIC, MINIATURE, CERAMIC, SMD, 2 PIN 驱动 晶体 谐振器 |
| 文件： | 总2页 (文件大小：119K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CX MINIATURE CRYSTALS
EUROQUARTZ
Telephone:
Fax:
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
Page
CX-3H-SM
18kHz ttoo 660000kkHHzz
MMIINNIIAATTUURREE SSMMDD
CRYSTAL FOR
1 of 2
Email:
Web:
SERIES OOSSCCIILLLLAATTOORRSS
Miniature tuning fork design
High shock resistance
Designed for low power applications
Compatible with hybrid or PCB mounting
Low ageing
General Description
Full military environmental testing available
Ideal for battery operated applications
The CX-3H-SM quartz crystals are leadless devices designed for
surface-mounting on printed circuit boards or hybrid circuits.
These miniature crystals are intended for use with series
oscillators. Hermetically sealed in a rugged, ceramic package, the
crystals are produced utilizing a photo-lithographic process giving
excellent repeatability and consistent high quality.
Specification
Frequency Range:
Functional Mode:
Calibration Tolerance*:
Motional Resistance (R ):
18kHz to 600kHz
Tuning Fork (Flexure)
A, B, or C (see below)
See Figure 1
D
(TOP)
A
Max: 18-25kHz, 2 x typ.
25-600kHz, 2.5 x typ.
See Figure 2
D
D
Motional Capacitance (C ):
Quality Factor (Q):
See Figure 3
min. is 0.25 x typ.
1.8pF max.
B
C
E
Outline
Shunt Capacitance (C ):
Drive Level:
18-25kHz 0.5µW max.
25-600kHz 1.0µW max.
See Figure 4
CX-3H-SM Package Dimensions
Turning Point (T )**:
Temperature Coefficient:
Ageing, first year:
Shock***:
Vibration, survival:
Operating Temperature:
Typical
(mm)
Maximum
(mm)
-0.035ppm/°C
±5ppm max.
Dimension
1,500g peak, 0.3ms, ½ sine
10g rms 20-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
A
B
6.73
2.62
-
7.11
2.90
C
D
E
see below
1.52
Storage Temperature:
Max. Process Temperature:
1.27
1.32
260°C for 20 seconds
1.57
Specifications are typical at 25°C unless otherwise indicated.
Dimension
“C”
Glass Lid
(mm max.)
Ceramic Lid
(mm max.)
*
**
***
Closer frequency calibration available
Other turning point available
A higher shock and vibration version is available.
SM1
SM2
SM3
1.47
1.52
1.60
1.75
1.80
1.88
CX-3V Crystal Calibration Tolerance at 25°C
Frequency Range (kHz)
Calibration
18~74.9
250~600
75~169.9 170~249.9
Equivalent Circuit
A
B
±0.003% ±0.005%
±0.01%
±0.02%
±0.2%
±0.02%
±0.05%
±0.5%
±0.01%
±0.1%
±0.01%
±0.1%
L1
R1
C
C1
C0
1
2
Terminations
R1 Motional Resistance L1
Motional Inductance
C0
Shunt Capacitance
Termination
Designation
C1
Motional Capacitance
SM1
SM2
SM3
Gold Plated
Nickel, Silver Plated
Nickel, Solder Plated and Solder Dipped
CX MINIATURE CRYSTALS
EUROQUARTZ
Telephone:
Fax:
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
Page
CX-3H-SM
18kHz ttoo 660000kkHHzz
MMIINNIIAATTUURREE SSMMDD
CRYSTAL FOR
2 of 2
Email:
Web:
SERIES OOSSCCIILLLLAATTOORRSS
Figure 2 - CX-3H Typical Motional Capacitance (C )
Circuit Design
Conventional Series Oscillator Circuit
Figure 3 - CX-3H Typical Quality Factor (Q)
Oscillator
Buffer
CX-1H Crystal
Figure 1 - CX-3H Typical Motional Resistance (R )
Figure 4 - CX-3H Typical Turning Point Temp. (°C)
Solder Pad Layout
Packaging
1.78
3.05
5.46
CX-3H-SM- Bulk Pack (Standard)
-
16mm tape, 178mm or 330mm reels (Optional)
per EIA 481
Tray Pack (Optional)
-
Order Code
C = Ceramic Lid
Blank = Glass Lid
Frequency
CX-3H
( A /
I )
-SM1 32.768kHz
Temperature
Range:
C = Commercial
I = Industrial
M = Military
S = Specify
“S” if special
or custom design
Blank if standard
SM1
SM2
SM3
Calibration
Tolerance*
@ 25°C
A, B, C
*For other calibration
tolerances enter
figure in ppm
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