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CX-3H-SM
18kHz to 600kHz
MINIATURE SMD
CRYSTAL FOR
SERIES OSCILLATORS
CX-3H-SM
18kHz to 600kHz
MINIATURE SMD
CRYSTAL FOR
SERIES OSCILLATORS
General Description
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.
Outline
Miniature tuning fork design
High shock resistance
Designed for low power applications
Compatible with hybrid or PCB mounting
Low ageing
Full military environmental testing available
Ideal for battery operated applications
Specification
Dimension
A
6.73
7.11
B
2.62
2.90
C
-
see below
D
1.27
1.52
E
1.32
1.57
CX-3H-SM Package Dimensions
Typical
(mm)
Maximum
(mm)
Dimension
“C”
SM1
1.47
1.75
SM2
1.52
1.80
SM3
1.60
1.88
Glass Lid
(mm max.)
Ceramic Lid
(mm max.)
1
LR
C
0
1
12
R
1
L
1
CC0
Mot ional Resistance
Motional Capacitance
Motional Inductance
Shunt Capacitance
Equivalent Circuit
Frequency Range:
Functional Mode:
Calibration Tolerance*:
Motional Resistance (R ):
Motional Capacitance (C ):
Quality Factor (Q):
Shunt Capacitance (C ):
Drive Level:
Turning Point (T )**:
Temperature Coefficient:
Ageing, first year:
Shock***:
Vibration, survival:
Operating Temperature:
Storage Temperature:
Max. Process Temperature:
18kHz to 600kHz
Tuning Fork (Flexure)
A, B, or C (see below)
See Figure 1
Max: 18-25kHz, 2 x typ.
25-600kHz, 2.5 x typ.
See Figure 2
See Figure 3
min. is 0.25 x typ.
1.8pF max.
18-25kHz 0.5 W max.
25-600kHz 1.0 W max.
See Figure 4
-0.035ppm/°C
±5ppm max.
1,500g peak, 0.3ms, 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
Specifications are typical at 25°C unless otherwise indicated.
*
Closer frequency calibration available
**
Other turning point available
***
A higher shock and vibration version is available.
A
B
C
D
E
(TOP)
Calibration
Frequency Range (kHz)
A
±0.003% ±0.005%
±0.01%
±0.02%
B
±0.01%
±0.02%
±0.05%
C
±0.1%
±0.2%
±0.5%
CX-3V Crystal Calibration Tolerance at 25°C
18~74.9
75~169.9 170~249.9
250~600
Terminations
Designation
SM1
Gold Plated
SM2
Nickel, Silver Plated
SM3
Nickel, Solder Plated and Solder Dipped
Termination
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
Telephone:
Fax:
Email:
Web:
EUROQUARTZ
CX MINIATURE CRYSTALS
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