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CX-2H-SM1FREQ4(B/M)

Description
Quartz Crystal, QUARTZ CRYSTAL RESONATOR, 0.17 MHz - 0.2499 MHz, HERMETICALLY SEALED, MINIATURE, CERAMIC, LEADLESS, SMD, 3 PIN
CategoryPassive components    Crystal/resonator   
File Size118KB,2 Pages
ManufacturerEuroquartz
Websitehttp://www.euroquartz.co.uk/
Download Datasheet Parametric View All

CX-2H-SM1FREQ4(B/M) Overview

Quartz Crystal, QUARTZ CRYSTAL RESONATOR, 0.17 MHz - 0.2499 MHz, HERMETICALLY SEALED, MINIATURE, CERAMIC, LEADLESS, SMD, 3 PIN

CX-2H-SM1FREQ4(B/M) Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
Reach Compliance Codeunknown
Other featuresBULK; TAPE AND REEL; TRAY
Ageing5 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - FUNDAMENTAL
Drive level3 µW
frequency stability0.035%
frequency tolerance200 ppm
JESD-609 codee4
Manufacturer's serial numberCX-2H-SM
Installation featuresSURFACE MOUNT
Maximum operating frequency0.2499 MHz
Minimum operating frequency0.17 MHz
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
physical sizeL6.99XB2.74XH1.65 (mm)/L0.275XB0.108XH0.065 (inch)
surface mountYES
Terminal surfaceGold (Au)
Base Number Matches1
CX MINIATURE CRYSTALS
16kHz
to 600kHz
MINIATURE SMD CRYSTAL
FOR SERIES OSCILLATORS
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
CX-2H-SM
Page
1 of 2
General Description
The miniature CX-2H-SM quartz crystal is a high quality tuning-
fork resonator for use in series (two cascaded inverters) oscillators.
The CX-2H-SM is hermetically sealed in a rugged, leadless
ceramic package. The crystal has been designed for surface-
mounting on printed circuit boards or hybrid circuits. The CX-2H-
SM crystal is manufactured using a photo-lithographic process,
yielding consistently high quality production parts.







Miniature tuning-fork design
High shock resistance
Designed for low-power applications
Compatible with hybrid or PC board packaging
Low ageing
Full military environmental testing available
Ideal for battery operated applications
Specification
Frequency Range:
Calibration Tolerance*:
Motional Resistance (R

):
16kHz to 600kHz
A, B or C (see table)
Figure 1
Max.: 16 ~ 169.9kHz, 2x typ.
170~600kHz, 2.5x typ.
Figure 2
Figure 3
Min. is 0.25x typ.
2.0pF max.
16~24.98kHz 1.5
µ
W max.
25~600kHz 3.0
µ
W max.
Figure 4
-0.035ppm/°C
±5ppm max.
1,500g 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
260°C for 20 seconds
1
(TOP)
A
I
G
2
H
3 F
D
Outline
B
C
E
Terminal 1 is electrically connected to terminal 3
Motional Capacitance (C

):
Quality Factor (Q):
Shunt Capacitance (C

):
Drive Level:
Turning Point (T

)**:
Temperature Coefficient:
Ageing, first year:
Shock, survival***:
Vibration, survival***:
Operating Temperature:
Storage Temperature:
Process Temperature:
CX-2-SM Package Dimensions
Dimension
Typical
(mm)
Maximum
(mm)
A
B
C
D
E
F
G
H
I
Dimension
“C”
6.60
2.39
-
0.89
1.50
1.27
2.67
3.94
5.33
Glass Lid
(mm max.)
6.99
2.74
see below
1.14
1.75
1.52
2.92
4.19
5.59
Ceramic Lid
(mm max.)
Specifications are typical at 25°C unless otherwise indicated.
*
**
***
Tighter frequency calibration available
Other turning point available
Higher shock and vibration version available
CX-1H-SM Crystal Calibration Tolerance at 25°C
Calibration
SM1
SM2
SM3
1.65
1.70
1.78
1.91
1.96
2.03
Frequency Range (kHz)
16~74.9
75~169.9
170~249.9
250~600
A
B
C
±0.003%
±0.01%
±0.1%
±0.005%
±0.01%
±0.1%
±0.01%
±0.02%
±0.2%
±0.02%
±0.05%
±0.5%
Equivalent Circuit
L
1
R
1
1
C
1
C
0
2
Solder Pad Layout
2.67
2.87
1
2
0.6
L
1
Motional Inductance
C
1
Motional Capacitance C
0
Shunt Capacitance
R
1
Motional Resistance
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