SMD Crystal Unit
Small SMD Crystal Unit: SX-7 Type
!"Features
#"Small
dimensions , and thin ( 1.6mm)"
#"Leadless
type in a ceramic package
#"Reflow
soldering is applicable.
#"Automatic
mounting is possible, using embossed taping
!"Dimensions
SX
-7K
Internal Connections (Top view)
#4
#3
SX-7
SX
-7L
Internal Connections (Top view)
#1
#2
1.6 max.
7.0
7.0
Land Pattern (reference only)
1.2
2.2
2.2
1.6 max
.
Land Pattern (reference only)
2.54
2.54
1.4
#1
#2
5.0
2.0
1.0
1.4
#4
5.08
#3
5.0
2.2
6.4
4.5
4.1
2.2
!Specifications
Item
Frequency
Vibration Mode
Frequency Tolerance
Temperature Characteristics
Equivalent Series Resistance
Shunt Capacitance
Load Capacitance
Drive Level
Aging
SX-7K, SX-7L
9.8304 MHz ~ 40.000 MHz , 40.000 MHz ~ 100.000 MHz
AT- cut Fundamental , 3rd overtone
±30 ppm , ±50 ppm
±30 ppm , ±50 ppm
60Ω
Max.
7pF Max.
Series Resonance
10
μW
~ 100
μW
F/F=±5 ppm Max. (25±3
$C
) First year
16 pF, 20 pF
25$C
Standard Frequency (MHz)
9.83040
10.00000
11.05920
25$C Standard
]
12.00000
13.56000
14.31818
14.74560
16.00000
20.00000
22.11840
22.57920
24.57600
25.00000
28.22400
28.63636
29.49120
33.86400
40.00000
48.00000
56.44800
[
-20$C ~ +70$C
Specifications which are different from those above may be acceptable.
%"”Type”
indicates the product No., which is not the trademark.
HOKURIKU
%"Specifications
are subject to change without notice.
2.4