CITIZEN CFS-206 Tuning fork crystal units (cylinder type) Datasheet

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
6.0±0.2
ø0.2±0.05
ø1.4±0.1
0.45±0.08
0.7±0.2
ø2.0±0.1
ø0.26±0.05
■ DIMENSION [mm]
5.0±0.1
10.0±0.2
CFS-206, CFV-206
4.3±0.3
CFS-145
■ STANDARD SPECIFICATIONS
Item
Nominal Frequency
Frequency Tolerance
Load capacitance
Model
CFS-206
CFS-145
CFV-206
Conditions
f0
32.768kHz
30kHz〜100kHz
Need to contact us for
the available frequency in CFV-206
△ f/f0
±20ppm
±30ppm
at 25˚C
12.5pF
Need to specify your requirement
CL
12.5pF
8.0pF
Operating Temperature Range
TOPR
−20℃〜+70℃
Storage Temperature Range
TSTR
−40℃〜+85℃
Turnover Temperature
TM
25℃±5℃
Temperature Coefficient
β
−0.034±0.006ppm/℃2
Motional (series) resistance
R1
Level of drive
DL
See figure 2 in P4
Aging (first year)
35KΩMax.
50KΩMax.
at 25˚C
±5ppm Max.
25℃±3℃
1μW Max.
±3ppm Max.
△ f/f0
Quality Factor
Q
70000 Typ.
85000 Typ.
70000〜100000 Typ.
Depend on frequency
Shunt capacitance
C0
1.35pF Typ.
1.00pF Typ.
0.8〜1.7pF Typ.
Depend on frequency
http://cfm.citizen.co.jp/english/product/pr02.html
13
40KΩMax.
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