CX MINIATURE CRYSTALS
18kHz
to 600kHz
ULTRA-LOW PROFILE
MINIATURE SMD CRYSTAL
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
CX-6V-SM
Page
1 of 2
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.
Miniature tuning fork design
Ultra-low profile (1mm)
High shock resistance
Designed for low power applications
Compatible with hybrid or PCB packaging
Low ageing
Full military environmental testing available
Ideal for battery operated applications
Specification
Frequency Range:
Functional Mode:
Calibration Tolerance*:
Motional Resistance (R
1
):
Motional Capacitance (C
1
):
Quality Factor (Q):
Shunt Capacitance (C
0
):
Drive Level:
Turning Point (T
0
)**:
Temperature Coefficient (k):
Ageing, first year:
Shock, survival***:
Vibration, survival***:
Operating Temperature:
Storage Temperature:
Process Temperature:
18kHz to 600kHz
Tuning Fork (Flexure)
A, B or C (see table below)
See Figure 1
Max.: 18~25kHz, 2x typ.
25~600kHz, 2.5x typ.
See Figure 2
See Figure 3
Min. is 0.25 typ.
1.4pF
18~25kHz 0.5
µ
W max.
25~600kHz 1.0
µ
W max.
See Figure 4
-0.035ppm/°C
2
±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 sec.
D
(TOP)
A
D
Outline
B
C
CX-6V-SM Package Dimensions
Dimension
Typical
(mm)
Maximum
(mm)
A
B
C
D
Dimension
“C”
6.73
2.62
-
1.27
Glass Lid
(mm max.)
7.11
2.90
see below
1.52
Ceramic Lid
(mm max.)
Specifications are typical at 25°C unless otherwise indicated.
*
**
**
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
Calibration
Frequency Range (kHz)
18~74.9
75~169.9
170~249.9
250~600
Equivalent Circuit
L
1
R
1
A
B
C
C
1
C
0
±0.003%
±0.01%
±0.1%
±0.005%
±0.01%
±0.1%
±0.01%
±0.02%
±0.2%
±0.02%
±0.05%
±0.5%
1
2
Other calibration values are available - consult Euroquartz sales office
Load Capacitance (C
L
) Used to Calibrate CX-6V
)
Frequency
Range
(kHz)
Load
Cap.
(pF)
Frequency
Range
(kHz)
Load
Cap.
(pF)
L
1
Motional Inductance
C
1
Motional Capacitance C
0
Shunt Capacitance
R
1
Motional Resistance
18~24.9
25~54.9
55~100
10
9
8
100.1~179.9
180~160
5
4
(Other C
L
available)
EUROQUARTZ [ EUROQUARTZ LIMITED ]
