TUNING FORK CRYSTAL UNITS
(Cylinder Type)
CFS-206
.
CFS-145
.
CFV-206
■
FEATURES
7Best
suited for portable devices with low current
consumption.
7For
a clock source in digital equipment.
Life-size
■
DIMENSION [mm]
ø0.26±0.05
ø0.2±0.05
5.0±0.1
0.45±0.08
10.0±0.2
4.3±0.3
ø2.0±0.1
6.0±0.2
CFS-206, CFV-206
0.7±0.2
ø1.4±0.1
CFS-145
■
STANDARD SPECIFICATIONS
Item
Nominal Frequency
Frequency Tolerance
Load capacitance
Operating Temperature Range
Storage Temperature Range
Turnover Temperature
Temperature Coefficient
Motional (series) resistance
Level of drive
Aging (first year)
Quality Factor
Shunt capacitance
Model
CFS-206
32.768kHz
±20ppm
12.5pF
CFS-145
CFV-206
30kHz∼100kHz
±30ppm
Conditions
Need to contact us for
the available frequency in CFV-206
f
0
△
f/f
0
at
25˚C
Need to specify your requirement
C
L
T
OPR
T
STR
T
M
β
R
1
D
L
△
f/f
0
8.0pF
−
20℃∼
＋
70℃
−
40℃∼
＋
85℃
12.5pF
25℃±5℃
See figure 2 in P4
−
0.034±0.006ppm/℃
2
35KΩMax.
40KΩMax.
1μW Max.
50KΩMax.
at
25˚C
±3ppm Max.
70000 Typ.
1.35pF Typ.
85000 Typ.
1.00pF Typ.
±5ppm Max.
70000∼100000 Typ.
0.8∼1.7pF Typ.
25℃±3℃
Depend on frequency
Depend on frequency
Q
C
0
http://cfm.citizen.co.jp/english/product/pr02.html
13
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
