http://cfm.citizen.co.jp/english/product/pr02.html
10
12.5pF
f0
△f/f0
CL
TOPR
TSTR
TM
β
R1
DL
△f/f0
Q
C0
Item Model
32.768kHz 30kHz〜100kHz Need to contact us for
the available frequency in CM250C
Dependonfrequency
±30ppm
1.35pFTyp. 0.8pF〜1.7pFTyp.
at 25˚C
at 25˚C
25℃±3℃
Need to specify your requirement
±20ppm
−40℃〜＋85℃
−55℃〜＋125℃
25℃±5℃
−0.034±0.006ppm/℃2
1μWMax.
±3ppmMax.
50KΩMax.
±5ppmMax.
CM200C CM250C
■DIMENSION [mm] ■SOLDER PAD LAYOUT [mm]
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
CM200C .CM250C 3000pcs/reel
See figure 2 in P4
∗Donotconnecttoexternalwith#2and#3
TUNING FORK CRYSTAL UNITS
(SMD • Plastic Package)
■FEATURES
7Embeded with heat resistant cylinder type crystal
bring highly stable characteristics.
7Automatic mounting and reflowable type.
7Most appropriate for clock source for portable and
autmotive equipment with low power consumption.
3.7±0.1
2.4±0.1
7.9±0.1
5.5±0.5（1.25） （1.25）
0.5
#1 #2
#1 #2
#4 #3
#4 #3
0.5
（0.9）
1.3 1.34.2
1.9 1.91.3
Internalconnection
Dependonfrequency
70000Typ. 70000〜100000Typ.
■STANDARD SPECIFICATIONS
Conditions
実物大