Fundamental
FundamentalFundamental
Fundamental 3rd Overtone
3rd Overtone3rd Overtone
3rd Overtone 3rd Overtone
3rd Overtone3rd Overtone
3rd Overtone
100ΩMax.
100ΩMax.100ΩMax.
100ΩMax. 80ΩMax.
80ΩMax.80ΩMax.
80ΩMax.R
RR
R
1
11
1
50ΩMax.
50ΩMax.50ΩMax.
50ΩMax.
Fundamental
FundamentalFundamental
Fundamental
80ΩMax.
80ΩMax.80ΩMax.
80ΩMax.
Mode
ModeMode
Mode
150ΩMax.
150ΩMax.150ΩMax.
150ΩMax. 40ΩMax.
40ΩMax.40ΩMax.
40ΩMax.
10.0≦f
10.0≦f10.0≦f
10.0≦f
0
00
0
＜12.0
＜12.0＜12.0
＜12.0 12.0≦f
12.0≦f12.0≦f
12.0≦f
0
00
0
＜16.0
＜16.0＜16.0
＜16.0 16.0≦f
16.0≦f16.0≦f
16.0≦f
0
00
0
＜30.0
＜30.0＜30.0
＜30.0
Fundamental
FundamentalFundamental
Fundamental Fundamental
FundamentalFundamental
Fundamental Fundamental
FundamentalFundamental
Fundamental
60ΩMax.
60ΩMax.60ΩMax.
60ΩMax.
Insulation Resistance
Insulation Resistance Insulation Resistance
Insulation Resistance I
R
500MΩMin. DC100V±15V
30.0≦f
30.0≦f30.0≦f
30.0≦f
0
00
0
＜36.0
＜36.0＜36.0
＜36.0 36.0≦f
36.0≦f36.0≦f
36.0≦f
0
00
0
＜64.0
＜64.0＜64.0
＜64.05.5≦f
5.5≦f5.5≦f
5.5≦f
0
00
0
＜6.0
＜6.0＜6.0
＜6.0
Aging (first year)
Aging (first year) Aging (first year)
Aging (first year) Δf/f
0
±5ppm Max. 25℃±3℃
■ MOTIONAL (SERIES) RESISTANCE (R
1
)
Freq. Range
Freq. RangeFreq. Range
Freq. Range
(MHz)
(MHz) (MHz)
(MHz)
4.0≦f
4.0≦f4.0≦f
4.0≦f
0
00
0
＜5.5
＜5.5＜5.5
＜5.5 6.0≦f
6.0≦f6.0≦f
6.0≦f
0
00
0
＜10.0
＜10.0＜10.0
＜10.0
Fundamental
FundamentalFundamental
Fundamental
100ΩMax.
100ΩMax.100ΩMax.
100ΩMax.
16.0pF / 18.0pF / Series Please specify your requirement
Shunt capacitance
Shunt capacitance Shunt capacitance
Shunt capacitance C
0
5.0pF Max.
Level of drive
Level of drive Level of drive
Level of drive D
L
100μW
C
L
AT-CUT CRYSTAL UNIT
(SMD ・ Plastic Package)
CM309E
RoHS compliant 1,000pcs/reel
■ FEATURES
● Frequency range : 4.0 ～ 64.0MHｚ
● External dimensions (mm)
L : 11.7 x W : 4.8 x H : 3.7
● Applications
Consumer products
Nominal Frequency
Nominal Frequency Nominal Frequency
Nominal Frequency f
0
4.0MHz ～ 29.999MHz (Fundamental)
30.0MHz ～ 64.0MHz (3rd Overtone)
Please contact us for
frequencies available
■ DIMENSION
[mm]
■ SOLDER PAD LAYOUT
[mm]
■ STANDARD SPECIFICATIONS
Model
CM309E Conditions
Item
Frequency Tolerance over
Frequency Tolerance over Frequency Tolerance over
Frequency Tolerance over
Operating Temperature Range
Operating Temperature Range Operating Temperature Range
Operating Temperature Range Δf/f
0
below 5.5MHz:±50ppm
above 5.5MHz:±30ppm
Frequency Tolerance
Frequency Tolerance Frequency Tolerance
Frequency Tolerance Δf/f
0
±30ppm at 25˚C
Storage Temperature Range
Storage Temperature Range Storage Temperature Range
Storage Temperature Range T
STR
-55℃ ～ +125℃
Motional (series) resistance
Motional (series) resistance Motional (series) resistance
Motional (series) resistance R
1
Refer to the following table at 25˚C
-10℃～+60℃
Operating Temperature Range
Operating Temperature Range Operating Temperature Range
Operating Temperature Range T
OPR
-40℃ ～ +85℃
Load capacitance
Load capacitance Load capacitance
Load capacitance
Do not connect to external terminals with #2 and #3.
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
f
Rev.3
Table.1
Month Jan Feb … Sep
■ Part Marking
[standard]
Z
■ Packing
ff.fff : Frequency
C AA : Manufacture's ID Code
y : The last digit of production year
m : Production month (See Table.1)
M : MHz
Oct Nov Dec
Code 1 2 … 9 X Y
Conforming to JIS C 0806 TB1208NEIAJ and RC-1009B TE1208N Conforming to JIS C 0806 R12R and EIAJ RC-1009B R15
5° 4.9 5° 25.5 330 100
m (φ) n (φ)h j k l
1,000 24.0 11.5 12.0 1.5 11.9 0.4 4.0
gQ'ty/reel a b c d (φ) e
Frequency Tolerance
Frequency ToleranceFrequency Tolerance
Frequency Tolerance
（at 25℃)
（at 25℃)（at 25℃)
（at 25℃)
■ Reflow profile
Load capacitance (CL)
Load capacitance (CL)Load capacitance (CL)
Load capacitance (CL)
H
HH
H
J
JJ
J
I
II
I
T
TT
T
Series
Only
Tape
&
Reel
A
AA
ARef. Code for
internal use.
B
BB
B
CM309E 20000000 A B J T - □□□
CM309E 20000000 A B J T - □□□CM309E 20000000 A B J T - □□□
CM309E 20000000 A B J T - □□□
Package specification
Package specificationPackage specification
Package specification
CITIZEN
CITIZENCITIZEN
CITIZEN
management code
management codemanagement code
management code
Please
specify
the frequency
in
Hz.
A
AA
A ±30ppm
(STD)
B
BB
B ±50ppm
(STD)
Frequency Tolerance over
Frequency Tolerance overFrequency Tolerance over
Frequency Tolerance over
Operating Temp. Range
Operating Temp. RangeOperating Temp. Range
Operating Temp. Range
±30ppm
Range -10℃ ～ +60℃
±50ppm
Range -10℃ ～ +60℃
±50ppm
Range -40℃ ～ +85℃
±100ppm
Range -40℃ ～ +85℃
■
PART NUMBERING SYSTEM
18.0pF
16.0pF
G
GG
G
A
AA
A
Product specifications are subject to change without notice.
*Please contact us for specifications available.
Frequency
FrequencyFrequency
Frequency
C AAym
C AAymC AAym
C AAym
ff.fff M
ff.fff Mff.fff M
ff.fff M
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
