http://cfm.citizen.co.jp/english/product/pr02.html
13
TUNING FORK CRYSTAL UNITS (Cylinder Type)
CFS
-
206.CFS
-
145.CFV
-
206
■DIMENSION [mm]
■STANDARD SPECIFICATIONS
■FEATURES
•Best suited for portable devices with low current
consumption.
•For a clock source in digital equipment.
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)
Shunt capacitance
f0
△f/f0
CL
TOPR
TSTR
TM
β
R1
DL
△f/f0
C0
Item Model CFS-206 CFS-145 CFV-206 Conditions
32.768kHz 30kHz〜100kHz
Needtocontactusfor
theavailablefrequencyinCFV-206
Dependonfrequency
±30ppm
1.2pFTyp. 1.00pFTyp. 0.8〜1.7pFTyp.
at
25
℃
at
25
℃
25℃±3℃
Needtospecifyyourrequirement
±20ppm
−20℃〜＋70℃
−40℃〜＋85℃
25℃±5℃
−0.034±0.006ppm/℃2
1μWMax.
±3ppmMax.
12.5pF
35KΩMax. 40KΩMax. 50KΩMax.
±5ppmMax.
8.0pF 12.5pF
0.26±0.05
0.7±0.2
1.9±0.1
6±0.2 6.1±0.2
Max1.5
0.45±0.08
0.2±0.05
4.3±0.35±0.1
Life-size
CFS-206, CFV-206 CFS-145
RoHS compliant / Pb free