CX MINIATURE CRYSTALS
9.6MHz
to 160MHz
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-6-SM
Page
1 of 2
General Description
The CX-6-SM AT-cut 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.
Ultra-low profile (1mm)
Ideal for use with microprocessors
Designed for low power applications
Compatible with hybrid or PCB packaging
High shock and vibration resistance
Low ageing
Full military environmental testing available
Custom designs available
Specification
Frequency Range:
Motional Resistance (R
):
Motional Capacitance (C
):
Quality Factor (Q):
Shunt Capacitance (C
):
D
(TO P)
A
D
Calibration Tolerance*:
Outline
B
C
Load Capacitance:
Drive Level:
Temperature Stability**:
CX-6-SM Package Dimensions
Dimension
Typical
(mm)
Maximum
(mm)
Ageing, first year:
Shock, survival***:
Vibration, survival:
Operating Temperature:
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.)
Storage Temperature:
Process Temperature:
9.6MHz to 70MHz Fundamental
70MHz to 160MHz 3rd O/T
see table
see table
see table
see table
A ±0.01% (±100ppm)
B ±0.1%
C ±1.0%
20pF (or other as specified)
500
m
W max.
-10° to +70°C from ±10ppm
-40° to +85°C from ±20ppm
-55° to +125°C from ±30ppm
±5ppm max.
3000g peak, 0.3ms, ½ sine
20g rms 10-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
260°C for 20 sec.
Specifications are typical at 25°C unless otherwise indicated.
Note: the frequency stability characteristics follow that of AT-cut
thickness-shear mode.
*
**
***
Closer calibration available, from ±5ppm
Does not include calibration tolerance
Higher shock version available
SM1
SM2
SM3
0.99
1.04
1.12
1.35
1.40
1.47
Equivalent Circuit
L
R
1
C
C
2
L
Motional Inductance
C
Motional Capacitance C
Shunt Capacitance
R
Motional Resistance
CX MINIATURE CRYSTALS
9.6MHz
to 160MHz
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-6-SM
Page
2 of 2
Circuit Design
Conventional HCMOS Pierce Oscillator Circuit
R
B
Amplifier
Buffer
Osc.
Freq. (Fo)
C
5
R
)
C
CX-2
C
Solder Pad Layout
1.78
3.05
5.46
Terminations
Designation
Termination
Packaging
CX-6-SM - Bulk Pack (Standard)
- 16mm tape, 178mm or 330mm reels
(Optional) per EIA 481
- Tray Pack (Optional)
SM1
SM2
SM3
Gold Plated
Nickel, Solder Plated
Nickel, Solder Plated and Solder Dipped
Order Code
O.T.=3rd O.T. Mode
Frequency
Total
Frequency
Tolerance
CX-6
Blank = Fundamental
-SM1 32MHz
SM3
( A
Calibration
Tolerance*
@ 25°C
A, B, C
/ 25ppm / 50ppm / I
Frequency
Stability
over
Temperature
Range
Range:
)
S if special
C = Ceramic Lid SM1
or custom design
Blank = Glass Lid
SM2
Blank if standard
Temperature
C = Commercial
I = Industrial
M = Military
S = Specify
*For other calibration tolerances
enter figure in ppm
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