CX MINIATURE CRYSTALS
8MHz
to 160MHz
LOW-PROFILE
SMD CRYSTAL
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
CX-5-SM
Page
1 of 2
General Description
The CX-5-SM series surface-mount quartz crystals are leadless
devices designed for surface-mounting on printed circuit boards or
hybrid substrates. The packages are hermetically sealed and
designed specifically for process temperatures up to 260°C.
B
C
4
A
1
2
F
E
D
3
Surface-mount - infrared, vapour phase,
wave solder or epoxy mount techniques
Low profile, hermetically sealed package
Standard surface-mount pad layout
Full military environmental testing available
Specification
8MHz to 70MHz Fundamental
48MHz to 160MHz 3rd O/T
see table below
Motional Resistance (R
):
see table below
Motional Capacitance (C
):
see table below
Quality Factor (Q):
see table below
Shunt Capacitance (C
):
A ±0.005%
Calibration Tolerance*:
B ±0.1%
C ±1.0%
Customer specified
Load Capacitance:
500
m
W max.
Drive Level:
-10° to +70°C from ±5ppm
Temperature Stability**:
-40° to +85°C from ±30ppm
-55° to +125°C from ±30ppm
±1ppm typ., ±5ppm max.
Ageing, first year:
3000g 1ms, ½ sine
Shock, survival***:
20g rms 10-2,000Hz random
Vibration, survival:
-10°~+70°C (commercial)
Operating Temperature:
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
Storage Temperature:
Specifications are typical at 25°C unless otherwise indicated.
*
Tighter tolerances available
**
Does not include calibration tolerance
*** Higher shock available
Frequency Range:
Outline
Pin Connections
1.
Crystal
2.
Ground (case)
3.
Crystal
4.
Ground (case)
CX-5-SM Package Dimensions
Dimension
(mm)
Dimension
Value
A
B
C
D
E
F
7.67
5.18
1.30
2.54
1.02
1.40
max.
max.
max.
typ.
typ.
typ.
CX-5-SM Motional Parameters, Q and C
Equivalent Circuit
L
R
Motional
Frequency
Resistance
R
(
Motional
Capacitance
C
(fF)
Quality
Factor
000s
Shunt
Capacitance
C
(pF)
9
)
1
C
C
2
12MHz
16MHz
155MHz
58
35
50
2.2
4.3
0.5
108.6
65
41
1.3
1.8
3.2
L
Motional Inductance
C
Motional Capacitance C
Shunt Capacitance
R
Motional Resistance
CX MINIATURE CRYSTALS
8MHz
to 160MHz
LOW-PROFILE
SMD CRYSTAL
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
CX-5-SM
Page
2 of 2
Circuit Design
Conventional HCMOS Pierce Oscillator Circuit
R
B
Amplifier
Process Temperatures
1.) Vapour Phase
2.) Wave Solder
3.) Infrared
4.) Conductive Epoxy
253°C or 215°C for 10 sec. to 5 min.
260°C for 10 sec.
240°C for 10 sec.
165°C for 30 min.
Buffer
Osc.
Freq. (Fo)
C
5
R
)
Packaging
CX-5-SM - Tray Pack (Standard)
- Bulk Pack (Optional)
- 16mm tape, Single Pitch, 178mm or 330mm reels
(Optional) per EIA 481
C
CX-2
C
Suggested Solder Pad Layout
6.1
1.12
1.42
2.54
4.19
Terminations
Designation
Termination
SM1
SM3
Gold Plated
Nickel, Solder Plated and Solder Dipped
Order Code
Frequency
CX-5
S if special
or custom design
-SM1
SM1
SM3
Blank if standard
10.0MHz
( A
Calibration
Tolerance*
@ 25°C
A, B, C
/
I
Range:
)
Temperature
C = Commercial
I = Industrial
M = Military
S = Specify
*For other calibration
tolerances enter
figure in ppm
Integrated technical exchanges
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