CX MINIATURE CRYSTALS
EUROQUARTZ
CX-6V-SM
18kHz ttoo 660000kkHHzz
Telephone:
Fax:
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
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Email:
Web:
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MMIINNIIAATTUURREE SSMMDD CCRRYYSSTTAALL
Miniature tuning fork design
Ultra-low profile (1mm)
High shock resistance
Designed for low power applications
Compatible with hybrid or PCB packaging
Low ageing
General Description
The CX-6V-SM quartz crystals are leadless devices designed for
surface mounting on printed circuit boards or hybrid substrates.
The crystals are intended for use in Pierce oscillators. Hermetically
sealed in a miniature ceramic package, the crystals are produced
utilizing a photo-lithographic process ensuring consistent high
quality production units.
Full military environmental testing available
Ideal for battery operated applications
Specification
Frequency Range:
Functional Mode:
Calibration Tolerance*:
Motional Resistance (R ):
18kHz to 600kHz
Tuning Fork (Flexure)
A, B or C (see table below)
See Figure 1
D
(TOP)
Max.: 18~25kHz, 2x typ.
25~600kHz, 2.5x typ.
See Figure 2
A
Motional Capacitance (C ):
Quality Factor (Q):
D
See Figure 3
Min. is 0.25 typ.
1.4pF
B
C
Outline
Shunt Capacitance (C ):
Drive Level:
18~25kHz 0.5µW max.
25~600kHz 1.0µW max.
See Figure 4
CX-6V-SM Package Dimensions
Turning Point (T )**:
Temperature Coefficient (k):
Ageing, first year:
Shock, survival***:
Vibration, survival***:
Operating Temperature:
-0.035ppm/°C
±5ppm max.
Typical
(mm)
Maximum
(mm)
Dimension
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
A
B
6.73
2.62
-
7.11
2.90
C
D
see below
1.52
Storage Temperature:
Process Temperature:
1.27
260°C for 20 sec.
Specifications are typical at 25°C unless otherwise indicated.
Dimension
“C”
Glass Lid
(mm max.)
Ceramic Lid
(mm max.)
*
**
**
Closer calibration available
Other Turning Point available
A higher shock and vibration version is available
SM1
SM2
SM3
0.99
1.04
1.12
1.35
1.40
1.47
CX-6V-SM Crystal Calibration Tolerance at 25°C
Frequency Range (kHz)
Calibration
18~74.9
250~600
75~169.9 170~249.9
A
B
±0.003% ±0.005%
±0.01%
±0.02%
±0.2%
±0.02%
±0.05%
±0.5%
Equivalent Circuit
±0.01%
±0.1%
±0.01%
±0.1%
C
L1
R1
C1
C0
Other calibration values are available - consult Euroquartz sales office
1
2
Load Capacitance (C ) Used to Calibrate CX-6V)
Frequency
Range
(kHz)
Frequency
Range
(kHz)
Load
Cap.
(pF)
Load
Cap.
(pF)
R1 Motional Resistance L1
Motional Inductance
C0
Shunt Capacitance
18~24.9
25~54.9
55~100
10
9
100.1~179.9
180~160
5
4
C1
Motional Capacitance
8
(Other C available)