TUNING FORK CRYSTAL UNIT (Cylinder Type)
RoHS compliant / Pb free
CFS-206・CFS-145
■ FEATURES
● Frequency range : 32.768kHz
● External dimensions (mm)
ꢀꢀCFS-206 Φ : 2.0 x L : 6.2
CFS-145 Φ : 1.5 x L : 5.1
● Applications
ꢀꢀWatch / Clock / Security devices /
Consumer products
■ DIMENSION [mm]
CFS-206
CFS-145
■ STANDARD SPECIFICATIONS
Model
CFS-206
CFS-145
Conditions
Item
Nominal Frequency
f
0
32.768kHz
Frequency Tolerance
Load capacitance
Δf/f
0
±5ppm / ±10ppm / ±20ppm
6.0pF / 7.0pF / 8.0pF / 12.5pF
-20℃ ～ +70℃
at 25℃
Please specify
your requirement
C
L
Operating Temperature Range
Storage Temperature Range
Turnover Temperature
Temperature Coefficient
Motional (series) resistance
Level of drive
TOPR
T
STR
-40℃ ～ +85℃
T
M
25℃±5℃
-0.034±0.006ppm/℃2
β
R
D
1
L
35KΩ Max.
40KΩ Max.
at 25℃
1μW Max.
Aging (first year)
Δf/f
0
±3ppm Max.
25℃±3℃
Shunt capacitance
C
0
1.2pF Typ.
1.0pF Typ.
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
CITIZEN [ CITIZEN ELECTRONICS CO., LTD. ]
